Chemistry, 03.07.2019 11:50 bella6786

Consider the reaction of magnesium metal with hydrochloric acid to produce magnesium chloride and hydrogen gas. if 3.38 mol of magnesium and 3.38 mol of hydrochloric acid are reacted, how many grams of magnesium chloride are produced?

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Answer from: SkinnestXOXO

The mass of magnesium chloride produced in the given reaction is 16.09 grams.

Explanation:

We are given:

Moles of magnesium = 3.38 mol

Moles of hydrochloric acid = 3.38 mol

The chemical equation for the reaction of magnesium and hydrochloric acid follows:

$Mg+2HCl\rightarrow MgCl_2+H_2$

By Stoichiometry of the reaction:

2 moles of hydrochloric acid reacts with 1 mole of magnesium.

So, 3.38 moles of hydrochloric acid will react with = $\frac{1}{2}\times 3.38=1.69mol$ of magnesium.

As, given amount of magnesium is more than the required amount. So, it is considered as an excess reagent.

Thus, hydrochloric acid is considered as a limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

2 moles of hydrochloric acid is producing 1 mole of magnesium chloride.

So, 3.38 moles of hydrochloric acid will react with = $\frac{1}{2}\times 3.38=0.169moles$ of magnesium chloride.

Now, calculating the mass of magnesium chloride by using equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Molar mass of magnesium chloride = 95.21 g/mol

Moles of magnesium chloride = 0.169 moles

Putting values in above equation, we get:

$0.169mol=\frac{\text{Mass of magnesium chloride}}{95.21g/mol}\\\\\text{Mass of magnesium chloride}=16.09g$

Hence, the mass of magnesium chloride produced in the given reaction is 16.09 grams.

Answer from: Quest

Yapo 13 fool coming at you for it

Answer from: Quest

Mass is the amount of matter in an object. weight is the measurement of the pull of gravity on an object. say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165) now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon. however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant. in conclusion it is possible for your weight to change as your mass remains constant.

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Consider the reaction of magnesium metal with hydrochloric acid to produce magnesium chloride and hy...