All categories

3 years ago

41 g of MgCl^2 is how many moles of magnesium chloride?

Chemistry

1 answer:

kari74 [83]3 years ago

6 0

Answer:

0.43 mol.

Explanation:

Knowing that the no. of moles can be calculated using the relation:

<em>no. of moles (n) = mass/molar mass</em>

mass of MgCl₂ = 41.0 g & molar mass of MgCl₂ = 95.211 g/mol.

<em>∴ n = mass/molar mass</em> = (41.0 g)/(95.211 g/mol) = <em>0.43 mol.</em>

You might be interested in

Dew forming on grass is an example of condensation true or fales and explain

exis [7]

True becuase dew is coming out of the air which if you look at a glass of water it has condensation on it becuase it is hot

7 0

3 years ago

Read 2 more answers

Calculate the following:

Brrunno [24]

Follow these steps to solve the given equation:

Multiply the two decimal figures together and find the sum of the exponents, that is,

(1.5 * 1.89) * 10 ^4+3

(2.835) * 10^7

10^7 can also be written as e.70

'e' stands for exponential.

Therefore, we have 2. 835 e 7.0 = 2.8 e 7.0.

Based on the calculations above, the correct option is A.

4 0

3 years ago

Need help, please help

expeople1 [14]

Answer:

Explanation:

3 0

2 years ago

Read 2 more answers

Ammonia gas decomposes to form nitrogen and hydrogen gases. NH3(g) → N2(g) 3H2(g) If the nitrogen gas is collected in a rigid 2

sveticcg [70]

Decomposition is a chemical reaction that breaks the reactant into two or more products. Moles of nitrogen gas $(\rm N_{2})$ in the cylinder is 1.63 moles.

<h3>What is the ideal gas equation?</h3>

The ideal gas equation states the relation of the hypothetical ideal gas according to the pressure, volume, temperature and moles of the gas. It is given by,

$\rm PV = nRT$

Where,

Pressure (P) = 2000 kPa

Volume (V) = 2L

Temperature (T) = 295 K

Gas constant (R)= 0.08206

Substituting values in the equation:

$\begin{aligned} \rm n &= \rm \dfrac{PV}{RT}\\\\&= \dfrac{2000 \times (\dfrac{1}{101.325}) \times 2}{0.08206 \times 295}\\\\&= 1.63\;\rm mol\end{aligned}$

Therefore, 1.63 moles are produced.

Learn more about ideal gas equation here:

brainly.com/question/26720901

6 0

2 years ago

True or false , the viscosity of water is much greater than the viscosity ofhoney.

a_sh-v [17]

False... Honey is greater in velosity then water

4 0

3 years ago

Read 2 more answers