Calculate the moles of ammonia present in a 5.590 g sample if the molar mass of ammonia is 17.030 g/mol

Titration is a technique for determining unknown molarity of acid by adding a base of know malarkey to a known volume of acid

The process of calculating the quantity of a material A by adding measured increments of substance B, the titrant, with which it reacts until exact chemical equivalency is obtained " is the definition of titration. Titration, commonly referred to as titrimetry, is a method of chemical qualitative analysis used to determine the concentration of a certain analyte in a mixture.

The goal of titration is to identify the equivalence point, or the point at which chemically equivalent amounts of the reactants have been combined, which is a key analytical chemistry technique also known as volumetric analysis. The stoichiometry of the reactants determines how many reactants have been mixed at the equivalence point.

To learn more about titration please visit -
https://brainly.com/question/2728613
#SPJ1

A solution containing alcohol and water. If the mole fraction of water is 0.600, 0.4 is the mole fraction of alcohol.

A mole fraction is a measurement of concentration that is equal to the product of the moles of a component and the total moles of the solution.

Mole fraction is indeed a unitless phrase since it represents a ratio. When all the parts of a solution's mole fraction are summed up, they equal one.

moles fraction of water + mole fraction of alcohol =1

0.600+ mole fraction of alcohol =1

mole fraction of alcohol= 1-0.600

                                       =0.4

Therefore, 0.4 is the mole fraction of alcohol.

To know more about mole fraction, here:

https://brainly.com/question/29808190

#SPJ1

The atomic mass of the unknown element is; 23

We are given that;

Number of protons = 11

Number of Neutrons = 12

Number of Electrons = 11

Now, formula for atomic mass is;

Atomic mass = Number of Neutrons + Number of Electrons

Atomic Mass = 12 + 11

Atomic Mass = 23

Read more about Atomic Mass at; https://brainly.com/question/3187640

#SPJ1

Answer:

The answer is "Greater than zero, and greater than the rate of the reverse reaction".

Explanation:

It applies a rate of reaction to the balance, a forward response dominates until it reaches a constant. This process is balanced before 52 mmol of the reactant\(HC H_{3} \ CO_2\), to which 3 is added. In balance, that rate of the forward reaction was its rate with forwarding reaction, both of which are higher than 0 as the response has achieved balance so that both species get a level greater than 0.

Explanation:

To calculate the heat gained by nickel, we can use the formula:

q = m * c * ΔT

where q is the heat gained, m is the mass of the nickel, c is the specific heat of nickel, and ΔT is the change in temperature.

Given:

- Mass of nickel, m = 31.4 g

- Specific heat of nickel, c = 0.443 J/g · °C

- Change in temperature, ΔT = 64.2 °C - 27.2 °C = 37.0 °C

Substituting the values into the formula, we get:

q = (31.4 g) * (0.443 J/g · °C) * (37.0 °C)

Simplifying the calculation, we get:

q = 584 J

Therefore, the heat gained by nickel when 31.4 g of nickel is warmed from 27.2 °C to 64.2 °C is 584 J.

Answer: B

Explanation:

\(\boxed{\begin{array}{c|c}\boxed{\bf Compound}&\boxed{\bf Whole\:no\:ratio}\\ \sf Ba_3N_2 &\sf 3:2\\ \sf K_2O&\sf 2:1\\ \sf H_2SO_4&\sf 2:1:4 \\ \sf C_3H_5O &\sf 3:5:1\\ \sf NH_3 &\sf 1:3 \\ \sf N_2H_4 &\sf 1:2\end{array}}\)

The compound has an empirical formula of \(K_2H_2P_2O_8\) and a molecular formula of \(K_2HPO_4\).

For more questions on empirical formula

https://brainly.com/question/13058832

#SPJ8

The correct question would be as

The composition of a compound is 28.73% K. 1.48% H, 22.76% P, and 47.03% O. The molar mass of the compound is 136.1 g/mol. What is the Molecular Formula of the compound?

\(KH_2PO_4\\KH_3PO_4\\K_2H_4P_20_{12}\\K_2H_3PO_6\)

Answer:

345

Explanation:

Answer:

a chromosome contains many genes

Explanation:

Answer:

Hydrogen

Lithium Beryllium Fluorine

Sodium Magnesium Chlorine

Potassium Calcium Bromine

Rubidium Strontium Iodine

Explanation:

and much more i had a project about this stuff

Elements on the same period will appear on the same row in the periodic table.

The periodic table is arranged in groups and periods. The vertical columns are the groups while the horizontal rows are the periods. Elements in the same group are chemically similar while elements in the same period have the same number of shells.

The question is incomplete because the letters are not shown. However, elements on the same period will appear on the same row in the periodic table.

Learn more about periodic table: https://brainly.com/question/11155928

We have the reaction of sodium with oxygen. To balance the equation we must first count how many atoms of each element are on each side of the reaction. The figure below shows the atoms on each side of the reaction.

Now, we see that we have two oxygens in the reactants, so we must place the coefficient 2 in the Na2O molecule to have the same amount in the products. I will update the coefficients in the previous figure.

Now, we have 4 sodium in the products, we put the coefficient 4 in front of the sodium molecule. I will update it in the figure.

We already have the balanced equation and this will be:

This is a synthesis reaction since from two compounds a compound is formed

Grams of Na2O

To find the grams of Na2O we will follow the following steps:

1. We calculate the moles of Na by dividing the grams by its molar mass. Molar mass Na=22.9898g/mol

2. We calculate the moles of Na2O by the stoichiometry of the reaction. The Na2O to Na ratio is 2/4=1/2.

3. We find the grams of Na2O by multiplying the moles by its molar mass. Molar mass Na2O=61.9789

Let's proceed with the calculations.

1. Moles of Na

2. Moles of Na2O

3. Grams of Na2O

From 11.4 grams of Na will be produced 15.4g of Na2O with O2 in excess.

Answer:

different from the number of their neutrons

Explanation:

They each have one single proton (Z = 1), but differ in the number of their neutrons. Hydrogen has no neutron, deuterium has one, and tritium has two neutrons. ... Their nuclear symbols are therefore 1H, 2H, and 3H. The atoms of these isotopes have one electron to balance the charge of the one proton.

Answer:

gas

Explanation:

The correct options are

a). For each molecule of CH4 consumed, four C-H bonds are broken.

b). For each molecule of CH4 consumed, four O-H bonds are formed.

d). For each molecule of CH4 consumed, two O-O double bonds are broken.

e). For each molecule of CH4 consumed, two C-O double bonds are formed.

Define combustion.

Combustion is the name for the chemical reaction in which a material interacts with oxygen to produce heat. Examples include propane, wood, and ethane.

CH4+2O2 →  CO2+ 2H2O

4 (C-H), 2 (O=O) are broken and 2 (C=O), 4 (O-H) are formed.

Therefore, the correct options are

a). For each molecule of CH4 consumed, four C-H bonds are broken.

b). For each molecule of CH4 consumed, four O-H bonds are formed.

d). For each molecule of CH4 consumed, two O-O double bonds are broken.

e). For each molecule of CH4 consumed, two C-O double bonds are formed.

To learn more about combustion from the given link.

https://brainly.com/question/13251946

#SPJ4

A volcano can be defined as an opening on the surface of a planet that allows material warmer than surroundings to escape from its interior. Therefore, option (B) is correct.

A volcano can be described as an opening in the earth's crust through which lava, volcanic ash, and gases escape from its interior. When this material escapes, then eruptions can be calmer, with gentle flows of material, or can be explosive, sending material high into the sky.

When pieces of Earth's crust slowly move away from each other, magma can rise. The magma rises to fill in space and underwater volcanoes can form.

The tectonic plates can also move toward each other when magma rises. The part of Earth's crust can be forced deep into its interior which can cause the crust to melt and rise as magma.

The magma can also rise over hot spots. Hot spots can be defined as the hot areas inside of Earth where magma heats up and becomes less dense. With each way of rising the magma can form volcanoes.

Learn more about volcanoes, here:

https://brainly.com/question/2681336

#SPJ2

The amount of heat required to raise the temperature of the 34.2 g sample of aluminum by 34 oC is 1043.52 J.

What is Temperature?

Temperature is a measure of the average kinetic energy of the particles in a substance. It is a physical property that determines the direction of heat flow between two objects or systems in contact with each other. Temperature is measured in degrees Celsius (°C) or Fahrenheit (°F), or in kelvin (K) in the International System of Units (SI).

The amount of heat (q) required to raise the temperature of a substance can be calculated using the formula:

q = m x c x ΔT

Where:

m = mass of the substance (in grams)

c = specific heat of the substance (in J/g oC)

ΔT = change in temperature (in oC)

Plugging in the values given:

m = 34.2 g

c = 0.9 J/g oC

ΔT = 34 oC

q = (34.2 g) x (0.9 J/g oC) x (34 oC)

q = 1043.52 J

Therefore, the amount of heat required to raise the temperature of the 34.2 g sample of aluminum by 34 oC is 1043.52 J.

Learn more about Temperature

brainly.com/question/26866637

#SPJ1

Answer:

A

an element made of carbon and oxygen atoms.

So I think the answer is going to be A An element made of carbon and oxygen atoms.

The final concentration of the reactant of a first order reaction can be determined from the rate constant equation. The concentration of ammonium carbonate after 39 s will be 0.003 M.

Rate constant of a reaction is the rate of reaction when one molar concentration of the reactant is involved in the reaction. The expression for the rate constant k for first order reaction is :

k = 1/t ln (C0/Ct)

Where C0 be the initial concentration and Ct be the concentration after t seconds.

Given that C0 of ammonium nitrate = 0.957 M

rate constant = 0.196 /s

t = 39 s.

The concentration after 39 seconds is calculated as follows:

0.196 /s = 1/39s ln (0.957 M / Ct)

Ct = 0.957 / (ln⁻¹ (0.196 × 39))

    = 0.003 M.

Therefore, the concentration of ammonium carbonate after 39 seconds will be 0.003 M.

To find more on rate constant, refer here:

https://brainly.com/question/20305871

#SPJ1

Answer:

See the answer below

Explanation:

The complete question can be seen in the attached image.

Phenolphthalein is an indicator that is often utilized in an acid-base reaction to indicate the endpoints of such reactions due to its ability to change color from pink/colorless to colorless/pink depending on if the final solution is acidic or basic.

Phenolphthalein is usually colorless in acidic solutions and appears pink in basic solutions. The more basic or alkaline a solution is, the stronger the pink color of phenolphthalein. Hence;

1. Ammonia with a pH of 11 is basic, phenolphthalein will turn pink.

2. Battery acid with a pH of 1 is acidic, it will remain colorless.

3. Lime juice with a pH of 2 is acidic, it will remain colorless.

4. Mashed avocado with a pH of 6.5 is acidic, it will remain colorless.

5. Seawater with a pH of 8.5 is basic, it will turn pink.

6. Tap water with a pH of 7 is neutral, it will remain colorless

Phenolphthalein is a chemical compound with the formula\(C_{20}H_{14}O_4\). Phenolphthalein is often used as an indicator in acid-base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions

Phenolphthalein works as in:-

According to the question, There are 5 solutions having different ph and the indication only turns basic solution to pink

The indicator only turn the basic solution pink and these solutions are as follows,

Hence, these are the answer.

For more information, refer to the link:-

Answer:

Neon is the tenth element with a total of 10 electrons. In writing the electron configuration for neon the first two electrons will go in the 1s orbital. Since 1s can only hold two electrons the next 2 electrons for Ne go in the 2s orbital. The remaining six electrons will go in the 2p orbital.

Explanation:

Answer:

C 5 mol A; 6 mol B

Explanation:

eto po answer ko sana makatulong

Answer: 177.23 g.

Explanation:

the volume of the aluminum bar is

1.7 cm x 3.0 cm x 12.9 cm

= 65.61 cm^3

2.7 g/cm^3 x 65.61 cm^3

177.23g

The fact that an airplane flying due east from an airport will eventually return to its starting point indicates that the Earth is a sphere due to the curvature of the Earth's surface.

How can an airplane flying due east provide evidence for the shape of the Earth?

By continuing to fly east, and with enough fuel, the airplane will eventually reach the same airport it started from. The longest eastward journey would occur from an airport located at one of the Earth's poles. Very short journeys would occur near the equator.

The fact that the airplane returns to its starting point indicates that the Earth is a sphere, as it would not be possible on a flat plane. This phenomenon is due to the curvature of the Earth's surface, which causes the plane's trajectory to follow a circular path along the Earth's surface.

To learn more about airplane, visit: https://brainly.com/question/28502555

#SPJ1

The physical property that is characteristic of all of the elements in the group located in the rightmost column of the periodic table is the gaseous state at room temperature.

Physical properties may be defined as those properties of matter that do not involves any chemical manifestation or appearance within the element. These properties are measurable and state the alteration between momentary states. Some examples of physical properties are as follows:

The groups located in the rightmost column of the periodic table are known as the halogens and the noble gases. These elements are typically gaseous in phase at room temperature. Apart from this, halogens also have high electronegativities because these elements have seven electrons in their valence electrons.

Therefore, the gaseous state at room temperature is the physical property that is characteristic of all of the elements in the group located in the rightmost column of the periodic table.

To learn more about the Modern periodic table, refer to the link:

https://brainly.com/question/15987580

#SPJ6

The final temperature of the solution is 30 degrees.

We know that we can be able to obtain the heat that has been evolved or absorbed by the system by the use of the formula that says; q = mcdT

m = mass of the object

c = heat capacity

dT = temperature change

We would then have;

Number of moles of KBr = 50.5 g/119 g/mol

= 0.42 moles

Then;

19.9 * 10^3 *  0.42 moles = 400 * 4.184 * (T - 25)

8358 = 1673.6T - 41840

T = 8358 + 41840/1673.6

T = 30 degrees

Learn more about heat capacity:https://brainly.com/question/28302909

#SPJ1

Taking into account the definition of molarity, the molar concentration of 5.8501 g NaCl dissolved in 500.00 cm³ volumetric flask is 0.2 mol/L.

Molarity is a measure of concentration that indicates the number of moles of solute that are dissolved in one liter of solution. This is, the molarity indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated according to the following expression:

molarity= number of moles of solute÷ volume

Molarity is expressed in units moles/L.

In this case, you have:

Replacing in the definition of molarity:

molarity= 0.1 moles÷ 0.5 L

Solving:

molarity= 0.2 mol/L

Finally, the molar concentration is 0.2 mol/L.

Learn more about molarity:

brainly.com/question/9324116

brainly.com/question/10608366

brainly.com/question/7429224

#SPJ1

Increasing the amount of oxygen in the reaction would result in an increased yield of barium sulfate, as long as there is an adequate supply of barium sulfide.

In the given chemical equation, the reaction between barium sulfide (BaS) and oxygen gas (O2) produces barium sulfate (BaSO4).

When the amount of oxygen is increased in the reaction, it would favor the production of more barium sulfate. This is because oxygen acts as a reactant in the formation of barium sulfate. By increasing the concentration or availability of oxygen, more oxygen molecules will be available to react with the barium sulfide. The increase in oxygen will provide more oxygen atoms for the formation of sulfate ions (SO4^2-) from the sulfide ions (S^2-) in barium sulfide. Consequently, more barium sulfate will be produced in the reaction. Therefore, increasing the amount of oxygen in the reaction would result in an increased yield of barium sulfate, as long as there is an adequate supply of barium sulfide.

for more questions on oxygen
https://brainly.com/question/32160368
#SPJ11

Answer:

Calcium, Magnesium, Barium, strontium, Beryllium, Radium

Explanation:

sorry if im wrong.....:(