Mass of the Graduated Cylinder
(only air)(g) Mass of the Graduated Cylinder with
Water (g) Calculated Mass of Water (g)
73.7 73.7 0.0
A student collected the above data for this experiment. What error did he make? Explain.

Answer: option c) the strongest base in aqueous solution is NaOH

Explanation:

the strongest base in aqueous solution is NaOH because strength of a base is determined by its ability to donate hydroxide ions (OH-) in solution. and NaOH dissociates completely in water to produce Na+ and OH- ions. The presence of a fully dissociated hydroxide ion makes NaOH a strong base.

While, HOC2H4OH and CH3OH are weak acids. HOC2H4OH is ethylene glycol and CH3OH is methanol are weak acid due to the presence of the   (-OH) group.

Also, NH3 (ammonia), is a weak base though it can accept H⁺ to form NH4+

Answer:

Cultural diffusion involves the dissemination of cultural ideas, beliefs, customs, and practices from one society or group to another through contact and interaction. In contrast, cultural appropriation refers to the adoption of cultural elements from another group without due consideration, acknowledgement, or respect for its original cultural significance. Both processes are interconnected in that cultural diffusion can lead to cultural appropriation when the receiving group fails to acknowledge and respect the cultural roots of the borrowed elements

Flocabulary circulation refers to the way in which Flocabulary's educational content is disseminated and used in various educational settings.

Flocabulary is an online platform that offers engaging and educational videos, songs, and activities across a wide range of subjects, including math, language arts, social studies, and science.

Teachers and students can access Flocabulary's content through a subscription-based model, allowing them to use the platform as a teaching tool in their classrooms.

Flocabulary's unique approach to learning has garnered praise from educators, who appreciate the platform's ability to make complex topics more accessible and engaging for students. By using Flocabulary's content, teachers can help students build their understanding and retain knowledge in a fun and effective way.

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Answer:1 Liter (L) is equal to 1000 milliliters (mL). To convert liters to mL, multiply the liter value by 1000. For example, to convert 2 liters to mL, multiply 2 by 1000, that makes 2000 mL is 2 L.

Explanation:

Answer:

kinetic theory of matter. when heat is added it excites the atoms and makes them vibrate.

Answer:

Your search - Calculate the molarity of a solution that contains 0.37g CaCl2 in 340 milliliters of solution - did not match any news results.

Explanation:

Answer:

6s

Explanation:

Answer:

it have been already balanced

2H2 + O2 = 2H2O.

Answer:

Because the thought of self-doubt and lack of confidence is getting to you. Other people most likely have the same issue that you do.

Explanation:

Answer:

i like to use it so i can find out new things, my dad thought me that by teaching you learn more, but when it comes to getting answers i put out a few of the same question and if 2 ppl give the same answer i use that one. the reason why i use brainly is because i have looked everywhere and cant find the answer this way even if its wrong it looks like i tried. i hopes that helps

Answer:

C LiOH

Explanation:

because it is an hydroxide as well as it is alkaline

Answer:

C. LiOH

Explanation:

LiOH is a strong base while the others are acids

Answer:

The green color of BTB in the beaker suggests that the solution has a pH close to neutral, indicating a balanced concentration of hydrogen ions.

Explanation:

Bromothymol blue (BTB) is a pH indicator commonly used in chemistry experiments. It is a chemical compound with the formula C27H28Br2O5S and belongs to the class of sulfonphthalein dyes. BTB is typically prepared as a solution in water and has a yellow color in acidic solutions, blue in basic solutions, and green in neutral solutions.

In the case of the BTB in the beaker appearing green, it indicates that the solution has a pH close to neutral. BTB changes its color depending on the concentration of hydrogen ions (H+) present in the solution, which is determined by the pH. At a neutral pH of around 7, the concentration of H+ ions is balanced, causing BTB to exhibit a green color.

The specific shade of green may vary depending on the exact pH of the solution. If the solution were more acidic, the BTB would appear yellow, and if it were more basic, it would appear blue.

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When we draw a potential energy (PE) curve for the interaction of two atoms, we are essentially plotting the energy of the system as a function of the distance between the two atoms.

In the case of Ne and Xe, the PE curve for both atoms will have a similar shape, but the relative depths of the potential wells and the positions of the minima along the x-axis will differ.
The relative depths of the potential wells represent the stability of the interaction between the two atoms. A deeper potential well indicates a more stable interaction, while a shallower potential well indicates a less stable interaction. The relative depths of the potential wells for Ne and Xe will be different due to the differences in their atomic radii. Xe is a larger atom than Ne, and therefore the attractive forces between the two atoms will be stronger, resulting in a deeper potential well.

The relative positions of the minima along the x-axis represent the equilibrium bond distance between the two atoms, which is the distance at which the potential energy is minimized. The equilibrium bond distance for Xe will be greater than that for Ne due to the larger atomic radius of Xe. This means that Xe atoms will be more likely to form bonds at longer distances than Ne atoms.

In summary, the PE curves for Ne and Xe will have similar shapes but different relative depths of potential wells and positions of minima due to the differences in their atomic radii. Xe will have a deeper potential well and a greater equilibrium bond distance than Ne.

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Potassium can be a component of the cream.

An element's presence can be determined using a flame test. The potassium in cream of tartar is what gives it its white-purple color.

Low ionization enthalpy elements allow the flame to display color. Due to low ionization enthalpy, when an element is heated, its valence electrons are quickly excited to higher orbits and emit light as they return to their original orbit. Salts of potassium emit a white-purple color when ignited. The cream of tartar's chemical formula is KC₄H₅O₆.

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The values of  enthalpy change, entropy change and  temperature all determine the spontenity of a reaction.

A sponteanous reaction is one which has the change in free energy as negative. We know that ΔG = ΔH - TΔS. The spontenity of a reaction depends on;

i. enthalpy change

ii. entropy change

iii. temperature

Since the values in the qestion are not given, the question is incomplete and we can not obtain a numerical value in order to decide the sponteanity of the reaction.

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Answer:

Any kind, as long as there is an action.

Answer:

Energy can be transferred from one form to another like kinetic energy to potential energy, light energy to heat energy, kinetic energy to electrical energy, light energy to chemical energy .etc ...

Explanation:

brainest please

Answer:

C) Reaction with dilute action

Explanation:

Metals are good conductors of electricity and heat.

Non-metals are insulators that don't allow heat and electricity to pass through them. Hence, non-metals are bad conductors of electricity and heat.

Answer:

4.70 grams of NH4Cl is needed to prepare 350 mL of a 0.25 M ammonium chloride solution.

We need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

To determine the mass of NH4Cl needed to prepare the solution, we us use the formula:

m=M x V x MM ... (i)

where,

m= mass in grams

M=molarity of solution

MM= molar mass of compound

V= volume in litres

The number of moles of NH4Cl needed can be calculated using:

  Moles = Molarity x Volume ...(ii)

  Moles = 0.25 mol/L x 0.350 L

  Moles = 0.0875 mol

Hence we can replace M x V with number of moles in equation i.

The molar mass of NH4Cl is :

  Molar mass of NH4Cl = (1 x 14.01 g/mol) + (4 x 1.01 g/mol) + (1 x 35.45 g/mol)

  Molar mass of NH4Cl = 53.49 g/mol

We have all the variables

Putting them in equation i.

Hence,

  Mass (g) = Moles x Molar mass

  Mass (g) = 0.0875 mol x 53.49 g/mol

  Mass (g) = 4.68 g

Therefore, you would need approximately 4.68 grams of NH4Cl to prepare a 0.25 M ammonium chloride solution with a volume of 350 mL.

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Answer: It decreases as it goes down and increases as it goes to the right.

Explanation: This is because as it goes down, the elements are becoming bigger which makes the distance from the proton and electron to become further, causing the attraction to weaken. While as it goes to the right across a period, it increases because the number of protons increase and we know that if there are more protons, the pull of the electrons from the nucleus becomes stronger.

The volume will be 2400 ml.

The equation used here will be

M1 × V1 = M2 × V2

M1 = initial concentration

M2 = final concentration

V1 = initial volume

V2 = final volume

So according to the data;

M1 = 12m

M2 = 0.15m

V1 = 30ml

V2 = ?

By putting the values in the equation as follows;

M1 × V1 = M2 × V2

V2 = M1 × V1  / M2

By putting the values given in the question we will solve this question as follows

V2 =  12 × 30 / 0.15

V2 = 360 / 0.15

So the volume used will be;

V2 = 2400 ml

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1 mole is equal to 6.023 × 10 ²³ molecules. 8.8 moles in 5.31x10^25 particles of Mg.

The term mole is defined as the amount of substance of a system which contains as many elementary entities.

One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.

1 mole of any substance = 6.023 × 10²³ molecules

1 mole of Mg (magnesium) = 6.023 × 10²³ molecules

Then 5.31x10^25 particles of mg = ?

Therefore,

5.31 x 10^25 particles of mg = 5.31 x 10²⁵ × 1 mole / 6.023 × 10²³

= 8.8 moles

Thus, 8.8 moles in 5.31x10^25 particles of Mg.

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Answer:

393.75mL

Explanation:

We know that

C1V1= C2V2

where C = centration, V= volume

C1= 0.45 M

V1= 175 mL = 0.175 L

C2 = 0.2M

⇒V2= C1V1/C2

⇒V2 = 0.175×0.45/0.2

=0.39375L

Therefore, amount of water needed= 393.75mL

1) To react with 0.460 mole of SO₂, 1.15 moles of C are needed.

2) When 2.0 moles of C reacts, 1.6 moles of CO are produced.

3) To produce 0.35 mole of CS₂, 0.70 moles of SO₂ are required.

4) When 2.4 moles of C reacts, 0.48 moles of CS₂ are produced.

1.

From the balanced equation, the stoichiometric ratio between C and SO₂ is 5:2. Therefore, to calculate the moles of C required, we can set up a proportion:

(5 moles C / 2 moles SO₂) = (x moles C / 0.460 moles SO₂)

Solving for x, we find:

x = (5/2) × 0.460 = 1.15 moles C

2.

From the balanced equation, the stoichiometric ratio between C and CO is 5:4. Therefore, to calculate the moles of CO produced, we can set up a proportion:

(5 moles C / 4 moles CO) = (2.0 moles C / x moles CO)

Solving for x, we find:

x = (4/5) × 2.0 = 1.6 moles CO

3.

From the balanced equation, the stoichiometric ratio between SO₂ and CS₂ is 2:1. Therefore, to calculate the moles of SO₂ required, we can set up a proportion:

(2 moles SO₂ / 1 mole CS₂) = (x moles SO₂ / 0.35 moles CS₂)

Solving for x, we find:

x = (2/1) × 0.35 = 0.70 moles SO₂

4.

From the balanced equation, the stoichiometric ratio between C and CS₂ is 5:1. Therefore, to calculate the moles of CS₂ produced, we can set up a proportion:

(5 moles C / 1 mole CS₂) = (2.4 moles C / x moles CS₂)

Solving for x, we find:

x = (1/5) × 2.4 = 0.48 moles CS₂

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Answer:

The element formed when a radioactive element undergoes radioactive decay. The latter is called the parent. The daughter may or may not be radioactive.

Explanation:

hope this helps

Explanation:

Carbohydrates covalently linked to proteins (glycoproteins) or lipids (glycolipids) are also a part of cell membranes, and function as adhesion and address loci for cells. The Fluid Mosaic Model describes membranes as a fluid lipid bilayer with floating proteins and carbohydrates.

The chemist prepares a solution of calcium sulfate by measuring out 0.53 umol of calcium sulfate into a 350 ml volumetric flask and filling the flask to the mark with water. The concentration of a solution is 1.5 uM.

The concentration or molarity of a solution is defined as the number of moles present in the specific volume of a solution. It is calculated as

Concentration=moles/volume(in L)

The volume of a solution is in mL. Convert the given volume in L

350 ml×(1 L/1000 mL)=0.35 L

Plug the value of moles and volume in the formula

Concentration=0.53 umol/0.35 L

Concentration=1.51429 umol/L

Concentration=1.5 uM (∵M=mol/L)

Therefore, the concentration of a solution is 1.5 uM.

I have answered the question in general as given question is incomplete. The complete question is

a chemist prepares a solution of calcium sulfate by measuring out 0.53 umol of calcium sulfate into a 350 ml volumetric flask and filling the flask to the mark with water. calculate the concentration in uM of the chemist's calcium sulfate solution. round your answer to two significant digits.

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The density of the helium gas is: 0.147 g/l

It is a physical quantity that expresses the ratio of the body mass to the volume it occupies.

The formulas and the procedures we will use are:

Where:

Information about the problem:

Applying the mole(n) formula and clearing the mass we get:

m(he) = 0.321 mol * 4.003 g/mol

n(he) = 1.284 g

Applying the density formula we get:

d = m /v

d = 1.284 g/8.73 l

d = 0.147 g/l

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The three industries commonly associated with battery technology are the automotive, electronics, and renewable energy sectors. Each of these industries faces specific challenges when it comes to developing better batteries.

Automotive Industry:

Electronics Industry:

Renewable Energy Industry:

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