All categories

2 years ago

How many grams of mgcl2 is produced if 4. 67 moles of hcl react

Chemistry

1 answer:

frosja888 [35]2 years ago

7 0

The mass of MgCl₂ produced is 5.685 grams.

Mass is the quantity of matter of a physical body.

The reaction is

Mg + 2HCl → MgCl₂ + H₂

2 mole of HCl

(2 × 36.458) = 72.8 g

1 moles of MgCl₂

(1 × 95.21 g) = 95.21 g

1 g Mg will produce = $\dfrac{95. 21}{78.2}$

4.67 mol Mg will produce

$\dfrac{95. 21}{78.2} \times 4.67 = 5.685$

Thus, the mass of MgCl₂ produced is 5.685 grams.

Learn more about mass

brainly.com/question/19694949

#SPJ4

You might be interested in

A sample of nitrogen gas occupies a volume of 2.55 L when it is at 755 mm Hg and 23 degrees Celsius. Use this information to det

ivolga24 [154]

<u>Answer:</u> The number of moles of nitrogen gas are 0.1043 moles and the pressure when volume and temperature has changed is 461.6 mmHg

<u>Explanation:</u>

To calculate the amount of nitrogen gas, we use the equation given by ideal gas which follows:

$PV=nRT$

where,

P = pressure of the gas = 755 mmHg

V = Volume of the gas = 2.55 L

T = Temperature of the gas = $23^oC=[23+273]K=296K$

R = Gas constant = $62.364\text{ L.mmHg }mol^{-1}K^{-1}$

n = number of moles of nitrogen gas = ?

Putting values in above equation, we get:

$755mmHg\times 2.55L=n\times 62.364\text{ L.mmHg }mol^{-1}K^{-1}\times 296K\\\\n=\frac{755\times 2.55}{62.364\times 296}=0.1043mol$

To calculate the pressure when temperature and volume has changed, we use the equation given by combined gas law.

The equation follows:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1,V_1\text{ and }T_1$ are the initial pressure, volume and temperature of the gas

$P_2,V_2\text{ and }T_2$ are the final pressure, volume and temperature of the gas

We are given:

$P_1=755mmHg\\V_1=2.55mL\\T_1=23^oC=[23+273]K=296K\\P_2=?\\V_2=4.10L\\T_2=18^oC=[18+273]K=291K$

Putting values in above equation, we get:

$\frac{755mmHg\times 2.55L}{296K}=\frac{P_2\times 4.10L}{291K}\\\\P_2=\frac{755\times 2.55\times 291}{4.10\times 296}=461.6mmHg$

Hence, the number of moles of nitrogen gas are 0.1043 moles and the pressure when volume and temperature has changed is 461.6 mmHg

6 0

3 years ago

Read 2 more answers

Organic compounds are a source of _______.

jek_recluse [69]

Answer:

<h2>Petroleum and coaltar are the main sources of organic compounds. <u>(edit: Protein is most likely correct because I did some further research and I am mistaken I believe the other answer is right because it is also found to be a source of energy aka protein)</u></h2>

Explanation: