ASAP. Magnetic field lines cannot be observed using a compass or iron filings.
True or false
Answer:
false
Explanation:
magnetic field lines can be accurately observed using *iron filling*
help me please it's due tomorrow
After selecting the hypothesis, the next step is to design an experiment to test the hypothesis.
For example, our hypothesis is "deforestation causes soil erosion".
A hypothesis should define two variables that may exhibit a relationship between them. Scientists define which variable will be the independent variable and the dependent variable.In the above example, independent variable is deforestation and dependent variable is soil erosion.Confounding variables are unwanted variables that can affect the dependent variable of an experiment. Thus, it eventually also affect the overall data and results of the experiment. For example, possible confounding variables here could be different materials in the soil.Eliminating confounding variables helps us know for sure that changes in the dependent variable are caused solely by the independent variable.Learn more about variables here:
brainly.com/question/17344045
#SPJ9
Match the procedural step to its purpose by dragging each step in the written procedure for the reaction of 2-naphthol with allyl bromide and a phase transfer catalyst in strong base into the appropriate box.
Purpose/Motivation - To avoid making the reaction mix become an emulsion. - To deprotonate alcohols to become good alkoxide nucleophiles. - Keep thetime for the reaction to go to completion under an hour. - Separate the non-polar ether product from the polar by-products. - Remove dissolved water is from the reaction mixture. Procedure
- The contents of the reaction flask were passed through a column of silica.
- Enough calcium chloride to cover half the bottom of the flask was added
- The reaction was stirred at a moderate, not rapid, pace - Solid sodium hydroxide was added to 2-naphthol. - Allyl bromide was used in excess.
To avoid making the reaction mix become an emulsion. - The reaction was stirred at a moderate, not rapid, pace.To deprotonate alcohols to become good alkoxide nucleophiles. - Solid sodium hydroxide was added to 2-naphthol.Keep the time for the reaction to go to completion under an hour. - Allyl bromide was used in excess.
Separate the non-polar ether product from the polar by-products. - The contents of the reaction flask were passed through a column of silica.Remove dissolved water from the reaction mixture. - Enough calcium chloride to cover half the bottom of the flask was added.An emulsion is a suspension of a liquid in another liquid. Because it is tough to separate these, stirring slowly in the course of the reaction prevents the reaction mix from becoming an emulsion.
A good nucleophile is an ion or a molecule that has an unbonded electron pair that may be employed to form a chemical bond to an electrophile. Alcohols may be deprotonated to form alkoxide nucleophiles by adding solid sodium hydroxide.The time for the reaction to be complete should be kept to a minimum. Allyl bromide was used in excess to achieve this.Silica gel is used in column chromatography to separate compounds based on their polarity.The polar by-products are eliminated by passing the contents of the reaction flask through a column of silica.The reaction mixture's water was removed by adding calcium chloride, which is hygroscopic.
learn more about alkoxide nucleophiles
https://brainly.com/question/31039154
#SPJ11
How much heat does it take to raise 100g of aluminum (c= .9 J/gC) from 12.5C to 31C?
Answer:
When two substances having different temperatures are introduced or kept together, heat energy, Q, flows from a substance at higher temperature to a substance at lower temperature. Also, heat continues to be transferred until their temperatures are equalized, at which point the substances are in thermal equilibrium. In a closed system, the amount of energy lost is equal to but opposite the amount of energy gained.
Explanation:
A sphere of radius 0.457 m, temperature 32.2 ∘
C, and emissivity 0.924 is located in an environment of temperature 82.9 ∘
C. At what rate does the sphere (a) emit and (b) absorb thermal radiation? (c) What is the sphere's net rate of energy exchange? (a) Number (b) Number Units Units
a) The sphere emits thermal radiation at a rate of 139.75 Watts.
b) The sphere absorbs thermal radiation at a rate of 37.66 Watts.
c) The sphere's net rate of energy exchange is 102.09 Watts.
What are the rates of thermal radiation emission, absorption, and net energy exchange for the sphere?To calculate the rates of thermal radiation emission and absorption, we can use the Stefan-Boltzmann law, which states that the rate of thermal radiation emitted or absorbed by an object is proportional to its surface area, temperature, and the Stefan-Boltzmann constant.
a) The rate of thermal radiation emitted by the sphere can be calculated using the formula:
Emitting Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(temperature^4 - environment\ temperature^4\))
Plugging in the given values:
Emitting Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((32.2 + 273.15)^4 - (82.9 + 273.15)^4)\)
Emitting Rate ≈ 139.75 Watts
b) The rate of thermal radiation absorbed by the sphere can be calculated in a similar way but using the environment temperature as the object's temperature:
Absorbing Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(environment\ temperature^4 - temperature^4\))
Plugging in the given values:
Absorbing Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((82.9 + 273.15)^4 - (32.2 + 273.15)^4)\)
Absorbing Rate ≈ 37.66 Watts
c) The net rate of energy exchange is the difference between the emitting rate and the absorbing rate:
Net Rate = Emitting Rate - Absorbing Rate
Net Rate = 139.75 Watts - 37.66 Watts
Net Rate ≈ 102.09 Watts
Therefore, the sphere emits thermal radiation at a rate of 139.75 Watts, absorbs thermal radiation at a rate of 37.66 Watts, and has a net rate of energy exchange of 102.09 Watts.
Note: The units for all the rates are Watts.
Learn more about thermal radiation emission
brainly.com/question/28517392
#SPJ11
Determine the mass of zirconium_______________, silicon__________________, and oxygen________________, found in 0.3384 mol of zircon, ZrSiO4, a semiprecious stone. Your answer must have the correct number of significant figures.Enter the number only, with no units.
1) Determine the mass of zirconium
Convert moles of zircon into moles of zirconium
\(\text{molesofZr}=0.3384molesofZrSiO_4\cdot\frac{1\text{molofZr}}{1molofZrSiO_4}=0.3384\text{molesofZr}\)Convert moles of zirconium into mass of zirconium (g)
\(\text{gramsofZr}=0.3384\text{molesZr}\cdot\frac{91.224\text{ g Zr}}{1\text{molofZr}}=30.87\text{ g Zr}\)2) Determine the mass of Silicon
Convert moles of zircon into moles of silicon
\(\text{molesofSi}=0.3384molesofZrSiO_4\cdot\frac{1\text{molofSi}}{1molofZrSiO_4}=0.3384\text{molesofSi}\)Convert moles of silicon into mass of silicon (g)
\(\text{gramsofSi}=0.3384\text{molesofSi}\cdot\frac{28.085\text{ g of Si}}{1\text{molofSi}}=9.504\text{ g Si}\)3) Determine the mass of Oxygen
Convert moles of zircon into moles of oxygen
\(\text{molesofO}=0.3384molesofZrSiO_4\cdot\frac{4\text{molofO}}{1molofZrSiO_4}=1.3536\text{molesofO}\)Convert moles of oxygen into mass of oxygen
\(\text{gramsofO}=1.3536\text{molesofO}\cdot\frac{15.999\text{ g O}}{1\text{mol of O}}=21.66gO\)The mass of zirconium is 30.87 g
The mass of silicon is 9.504 g
The mass of oxygen is 21.66 g
Releases energy in the form of ATP
Stores energy in glucose molecules.
Perfomed by producers
Perfomed by consumers.
Explanation:
Both (Photosynthesis and Cellular respiration)
Because
In Cellular respiration energy is released in the form of ATP and In plants glucose stored in the form of energy. Plants are producers. Animals are consumers.Therefore,
Both is correct✔
A certain liquid has a mass of 98.7g. If the liquid has a volume of 56.1 mL, what would be the density of this liquid?
Answer:
1.76 g/ml
Explanation:
98.7 / 56.1 = 1.7593582888
Round to the nearest hundredth = 1.76
Twelve hundred metric tons of solid waste is how many pounds? Using dimensional analysis
Answer:
1200 metric tons = 2645547 pounds
Explanation:
We need to find twelve hundred metric tons of solid waste is how many pounds.
For this, we must know the conversion from metric tons to pounds.
1 metric tons = 2204.62 pounds
To convert 1200 metric tons, multiply 2204.62 by 1200 as follows :
1200 metric tons = 2204.62 × 1200 pounds
= 2645547 pounds
Hence, twelve hundred metric tons of solid waste is equal to 2645547 pounds.
what, if any, conclusions can you draw about the phs of the different categories of common substances? a. ph of beverages
It is difficult to draw a conclusive statement about the pHs of different categories of common substances because the pH of a substance is dependent on its specific composition. However, it is possible to make generalizations about certain categories of substances.
The pH of beverages can vary widely depending on their composition. Some common beverages such as water, milk, and pure fruit juices tend to have a pH close to neutral (pH 7). Other beverages such as carbonated soft drinks, energy drinks, and sports drinks tend to be acidic (pH less than 7) due to the presence of acids such as citric acid, phosphoric acid, and carbonic acid. Alkaline water and some herbal teas may have a pH greater than 7.
For example, acidic beverages are substances often associated with a higher risk of dental erosion and may be more likely to cause stomach discomfort in some individuals. On the other hand, alkaline beverages may have potential health benefits, but further research is needed to fully understand their effects on the body.
Learn more about pm pH here.https://brainly.com/question/172153
#SPJ11
Determine the carburizing time necessary to achieve a carbon concentration of 0. 30 wt% at a position 4 mm into an iron–carbon alloy that initially contains 0. 10 wt% C. The surface concentration is to be maintained at 0. 90 wt% C, and the treatment is to be conducted at 1100°C. Use the diffusion data for γ-Fe in Table 5. 2. ( Callister, Materials Science and Engineering, 9th ed. , John Wiley & Sons, Inc. , 2014) Express your answer in hours to three significant figures
The carburizing time necessary to achieve a carbon concentration of 0.30 wt% at a position 4 mm into an iron-carbon alloy is 63.4 hours.
To determine the carburizing time necessary to achieve a carbon concentration of 0.30 wt% at a position 4 mm into an iron-carbon alloy, we can use Fick's second law of diffusion:
\(DC_{surface} / 2 = (C_{surface} - C_{4mm}) / erf(x / (2 * \sqrt{Dt} ))\\\)
where D is the diffusion coefficient, \(C{surface}\\\) is the surface carbon concentration (0.90 wt%), C_4mm is the carbon concentration at the position 4 mm into the alloy (0.10 wt%), x is the distance from the surface (4 mm), and t is the carburizing time we want to find.
We can use the diffusion coefficient for γ-Fe at 1100°C from Table 5.2, which is D = \(6.0 * 10^{-12} m^2/s.\)
Substituting the given values, we get:
\((6.0 * 10^{-12} m^2/s) * (0.90 - 0.30) / 2 = (0.90 - 0.10) / erf(4 mm / (2 * \sqrt{6.0 * 10^{-12} m^2/s} ))\)
Simplifying the left-hand side, we get:
\(1.8 * 10^{-12} m^2/s = (0.80) / erf(4 mm / (2 * \sqrt{(6.0 * 10^{-12} m^2/s) * t)})))\)
Taking the inverse error function of both sides, we get:
\(erf(4 mm / (2 * \sqrt{6.0 * 10^{-12} m^2/s) * t)} ) = 0.000346\)
Substituting this back into the previous equation, we get:
\(1.8 * 10^{-12} m^2/s = (0.80) / 0.000346\)
Solving for t, we get:
t = 63.4 hours
For more question on diffusion click on
https://brainly.com/question/30900484
#SPJ11
DNA is an example of a:
O A. Compound
B. Element
c. Mixture
D. Atom
Answer:
The answer is option A.
Compound
Hope this helps you
EXPERIMENT: GROWING ROOTS
You have learned that plants naturally produce chemicals that help them grow. These chemicals are present in all parts of a plant. What do you think will happen if you take a stem cutting from a plant and place it in water? In this experiment you will answer this question.
Here is your goal for this assignment:
Observe the growth of a plant from a cutting
These materials are needed:
water
stem cutting of growing plants
tall baby-food jar
Procedure:
Note: This investigation will take about two weeks. While you are waiting, proceed to the next assignment in this unit. Remember to record your data every other day or so until you have finished.
(Click here to print out the procedure and recording chart for this experiment.)
1. Fill a baby-food jar one-fourth full of water.
2. Fresh-cut a stem, such as a piece of a rosebush.
3. Place the stem in the water.
4. Be sure the water level stays about the same, while you do this assignment.
5. Record your observations using a printout of the chart provided in this assignment.
Your essay should answer the following questions: (Be sure to write complete sentences.)
What happened to the stem?
Did it grow roots?
What does this mean about your stem's ability to make growth chemicals?
What substance could you have used to make the roots grow sooner?
If someone gave you a stem of a special kind of holly, how would you get it to root?
Its science btw 20 points
How many protons does Na have?
Answer:
11 protons
Explanation:
Answer:
11 protons
Explanation:
since it is neutral it has 11 electrons as well
Can someone help me
Answer:the second largest one
Explanation:
both weels are pushing at it
5)A stock solution of dye has a concentration of 2.10×10 m.
How many milliliters of this solution would be needed to
dilute with water to make 100 ml of a solution that is 4.2x10 sm.
Answer:223
Explanation:223
help me, it’s pretty easy science moon stuff !
3 Ag(s) + 4 HNO3 → 3 AgNO3 + NO(g) + 2 H2OThe reaction of silver metal and dilute nitric acid proceeds according to the equation above. If 0.10 mole of powdered silver is added to 10. milliliters of 6.0-molar nitric acid, the number of moles of NO gas that can be formed is
Answer:
\(0.015\text{ mol}\)Explanation:
Here, we want to get the number of moles of NO gas that can be formed
To answer this, we need to be sure of the limiting reagent
The limiting reagent is the one that is responsible for the number of moles of product formed
From the shown balanced equation of reaction, 3 moles of silver produced 1 mole of the gas
Thus, 0.1 mol of powdered silver will produce:
\(\frac{0.1}{3}\text{ = 0.033 mol}\)For the nitric acid, we need to get the number of moles that reacted
To get this, we have to multiply the volume (in L) that reacted by the molarity
Mathematically, we have that as:
\(\begin{gathered} 10\text{ ml = }\frac{10}{1000}\text{ = 0.01 L} \\ \\ number\text{ of moles = volume }\times\text{ molarity} \\ number\text{ of moles = 0.01 }\times\text{ 6 = 0.06 moles} \end{gathered}\)From the equation of reaction, 4 moles of the nitrate gave 1 mole of the gas
Thus, we have it that 0.06 moles will give:
\(\frac{0.06}{4}\text{ = 0.015 mole}\)From what we see, the number of moles produced by the nitrate is less than what was produced by the solid
Thus, the nitrate is the limiting reagent and the number of moles of the gas produced is 0.015 mol
8 As a bee feeds upon the nectar produced by a flower, the bee may become coated with the flower's pollen. As the bee flies from flower to flower, some of this pollen may contact a flower's pistil, resulting in pollination. This relationship between the bee and the flower is an example of _______.
Answer:
nector
Explanation:
The value of the reaction quotient Q, for the cell
Zn(s)∣Zn 2+
(0.01 M)∥Ag +
(1.25 M)∣Ag(s) is_________.
The given cell is a galvanic cell or a voltaic cell. The value of the reaction quotient Q can be found using the following formula:Q = [Ag⁺] / [Zn²⁺]where, [Ag⁺] = concentration of Ag⁺ in the cathode half-cell = 1.25 M[Zn²⁺] = concentration of Zn²⁺ in the anode half-cell = 0.01 M
The value of the reaction quotient Q can be calculated as follows:Q = [Ag⁺] / [Zn²⁺] = 1.25 / 0.01 = 125Therefore, the value of the reaction quotient Q, for the cellZn(s)∣Zn 2+(0.01 M)∥Ag +(1.25 M)∣Ag(s) is 125.The reaction occurring in the cell can be represented as follows:Zn(s) + 2Ag⁺(aq) → Zn²⁺(aq) + 2Ag(s)At the anode (oxidation half-reaction):Zn(s) → Zn²⁺(aq) + 2e⁻At the cathode (reduction half-reaction):2Ag⁺(aq) + 2e⁻ → 2Ag(s)Overall balanced cell reaction: Zn(s) + 2Ag⁺(aq) → Zn²⁺(aq) + 2Ag(s)Hence, the value of the reaction quotient Q, for the given cell is 125.
For more information on galvanic cell visit:
brainly.com/question/32505497
#SPJ11
What is the mass of NaCl produced when 2.0 moles of chlorine gas
are reacted with excess sodium? The equation is given.
2 Na + Cl2 → 2 NaCl
Answer:
Mass = 234 g
Explanation:
Given data:
Mass of NaCl produced = ?
Moles of chlorine = 2.0 mol
Solution:
Chemical equation:
2Na + Cl₂ → 2NaCl
now we will compare the moles of NaCl with chlorine gas.
Cl₂ : NaCl
1 : 2
2.0 : 2/1×2.0 = 4.0 mol
Mass of NaCl;
Mass = number of moles × molar mass
Mass = 4.0 mol × 58.5 g/mol
Mass = 234 g
what mass of sodium chloride should be added to 250.0mL of 0.25M aquous solution f ammonia to produce a solution of pH 10.70
0.0146 g of sodium chloride should be added to 250.0 mL of 0.25 M aqueous solution of ammonia to produce a solution of pH 10.70.
\(NH_4\)+ + Cl- → \(NH_3\)+ HCl
For every mole of ammonium ion, one mole of sodium chloride is required. The number of moles of ammonium ion in 250.0 mL of 0.25 M solution is:
moles \(NH_4\)+ = (1.0 x \(10^{-3\) M)(0.250 L) = 2.5 x \(10^{-4\) moles
Therefore, the mass of sodium chloride required is:
mass NaCl = (2.5 x \(10^{-4\) moles)(58.44 g/mol) = 0.0146 g
pH is a measure of the acidity or alkalinity of a solution in physics. It is defined as the negative logarithm (base 10) of the concentration of hydrogen ions (H+) in a solution. A solution with a pH of 7 is considered neutral, indicating that it has an equal concentration of hydrogen ions and hydroxide ions (OH-). Solutions with a pH less than 7 are considered acidic, meaning that they have a higher concentration of hydrogen ions, while solutions with a pH greater than 7 are considered alkaline or basic, indicating a higher concentration of hydroxide ions.
The pH scale is logarithmic, which means that each whole number change in pH represents a ten-fold difference in the concentration of hydrogen ions. For example, a solution with a pH of 3 has ten times more hydrogen ions than a solution with a pH of 4, and 100 times more than a solution with a pH of 5. pH is an important concept in many areas of physics, including electrochemistry, biochemistry, and environmental science. Accurate measurement of pH is critical in many laboratory procedures, such as titrations and enzyme assays, and is also important in understanding the behavior of natural and engineered systems, such as soils, water bodies, and industrial processes.
To learn more about pH visit here:
brainly.com/question/491373
#SPJ4
how many coefficients need to be changed to make this chemical equation balanced? Zn + HNO3 --> Zn (No3)2 + H2
Coefficient 2 should be placed in the equation before the nitric acid in the reactant so that the chemical reaction becomes balanced.
The given chemical reaction is,
Zn + HNO3 --------> Zn (No3)2 + H2
Here, the elements Hydrogen, Nitrogen, and Oxygen are unbalanced.
These elements are altogether found in HNO₃ on the reactant side and are found as nitrate and hydrogen gas on the product side.
To balance the equation, the coefficient 2 is to be added in the reactant side so that 2 moles of Hydrogen, Nitrogen, and Oxygen would be balanced with 2 moles of Nitrate and two moles of Nitrogen.
On adding 2 on reactant side, we get
Zn + 2HNO3 -----------> Zn(NO3)₂ + H₂
This gives us a balanced equation and thus the equation could be balanced this way.
Therefore, coefficient 2 is to be added to make the equation to be balanced.
To know more about the balanced equation, click below:
https://brainly.com/question/26694427
#SPJ1
How many Fe atoms are there in 8 Fe
Chemical bonding may involve any of the following except the
1. change in mass in a chemical reaction
2. unequal sharing of a pair of electrons between two nonmetals
3. electrostatic attraction between two ions
4. transfer of an electron from one atom to another
Answer:
Number 1 is wrong it doesn't change the mass
Chemical bonding may involve any of the following except the " change in mass in a chemical reaction".
What is chemical reaction?A chemical reaction is referred to as a process which it involves the chemical change of one set of chemical compounds into yet another set of chemical substances.
What is chemical bonding?A molecule and compound's atoms, ions, and groups of atoms are held together by an attractive force, referred as chemical bond.
Chemical bonding may involve any of the following except the " change in mass in a chemical reaction".
Therefore, the correct answer will be option 1.
To know more about chemical bond and chemical reaction.
https://brainly.com/question/6071754
#SPJ2
The concept of continental drift was developed by Alfred Wegener. Which of the following pieces of evidence does NOT support Wegener's hypothesis?
Fossils of the same organisms are found on different continents.
Similar glacial sediments are found in different parts of the world.
The shapes of the continents fit together like pieces of a jigsaw puzzle
Climates at different latitudes are similar to one another.
Answer:
Climates at different latitudes are similar to one another.
Explanation:
I believe it is D.
Can I have brainliest
The concept of continental drift was developed by Alfred Wegener. Climates at different latitudes are similar to one another does not support Wegener's hypothesis. Therefore, option D is correct.
What is wegener's hypothesis ?Wagner's law, commonly referred to as the law of growing state activity, states that public spending rises as GDP does. Adolph Wagner (1835–1917), a German economist, is credited with discovering it first in his own nation before noticing it in other nations.
On January 6, 1912, Alfred Wegener initially presented his theory to the German Geological Society. According to his theory, the continents were formerly part of a single landmass known as Pangaea before disintegrating and migrating to their current places.
However, Wegener's hypothesis lacked a geological explanation for how the continents might have moved as he predicted over the surface of the globe.
Thus, option D is correct.
To learn more about wegener's hypothesis, follow the link;
https://brainly.com/question/839947
#SPJ2
Suppose an entire glass container was filled with vapor of sodium atoms, all with the valence electrons in the 4 s state. Photons would be emitted as the electrons dropped to lower energy levels a) List all the photon energies that would be observed in the glass container b) what is the shortest wavelength observed?
The shortest wavelength observed is 9.47 x 10^-8 m.
a) The photon energies that would be observed in the glass container would be (with 150 as the Rydberg constant for sodium):
4s-3p = 2.102 x 10^-19 J4s-3d = 2.113 x 10^-19 J4s-4p = 2.383 x 10^-19 J4s-4d = 2.413 x 10^-19 Jb)
The shortest wavelength observed can be determined by using the equation:
E = hc/λ,
where E is the energy of the photon, h is Planck's constant, c is the speed of light, and λ is the wavelength of the photon.
The energy of the photon is equal to the difference in energy levels, which can be calculated using the formula:
ΔE = E final - E initial .
For the shortest wavelength observed, the highest energy difference must be considered, which corresponds to the transition from the 4s to the 3p state.
Thus, ΔE = 2.102 x 10^-19 J.
Substituting the values of E and c into the equation for the energy of the photon and solving for λ, we get:
hc/λ = 2.102 x 10^-19 Jλ = hc / 2.102 x 10^-19 Jλ = (6.626 x 10^-34 J s)(3.00 x 10^8 m/s) / 2.102 x 10^-19 Jλ = 9.47 x 10^-8 m
Thus, the shortest wavelength observed is 9.47 x 10^-8 m.
Learn more about wavelength with the given link,
https://brainly.com/question/24452579
#SPJ11
What do we call objects that do not easily allow heat to travel through them? (2 points)
Group of answer choices
Insulators
Idolaters
Protectors
Transfers
GIVING SOME POINTS!
Answer:
It's Insulators
For proof you can search on the internet
what is the ozone hole and how does it affect humans?
a 25.00 ml 0.200 m hcl solution is titrated with 0.2 m naoh. what is the ph after the addition of 25.00 ml of naoh?\
The pH after the addition of 25.00 ml of NaOH is 7.
To find the pH after the addition of NaOH to the HCl solution, we need to calculate the number of moles of each substance involved and determine the resulting concentration of the remaining acid or base. Then we can use the resulting concentration to determine the pH.
First, let's calculate the number of moles of HCl and NaOH used in the reaction:
Moles of HCl = Volume of HCl solution (in L) × Concentration of HCl (in mol/L)
= 25.00 ml × 0.200 mol/L
= 0.025 L × 0.200 mol/L
= 0.005 mol
Moles of NaOH = Volume of NaOH solution (in L) × Concentration of NaOH (in mol/L)
= 25.00 ml × 0.200 mol/L
= 0.025 L × 0.200 mol/L
= 0.005 mol
Since the stoichiometric ratio between HCl and NaOH is 1:1 (according to the balanced chemical equation), they react completely, leaving no excess HCl or NaOH.
After the reaction, the moles of HCl and NaOH will cancel each other out, resulting in the formation of water (H₂O). Therefore, we are left with only water.
The pH of water is neutral, which is 7.
So, the pH after the addition of 25.00 ml of NaOH is 7.
Learn more about pH from the given link:
https://brainly.com/question/12609985
#SPJ11