Magnesium (24.30 g) reacts with hydrogen chloride (X g) to produce hydrogen gas (2.04 g) and magnesium chloride (96.90 g). How m
uch hydrogen chloride was used in the reaction?
1 answer:
Answer:
![74.64\ \text{g}](https://tex.z-dn.net/?f=74.64%5C%20%5Ctext%7Bg%7D)
Explanation:
Reactants
Magnesium = 24.3 g
Hydrogen chloride= x g
Products
Hydrogen gas = 2.04 g
Magnesium chloride = 96.9 g
As the mass of the reactions is conserved we have
Mass of reactants = Mass of products
![24.3+x=2.04+96.9\\\Rightarrow x=2.04+96.9-24.3\\\Rightarrow x=74.64\ \text{g}](https://tex.z-dn.net/?f=24.3%2Bx%3D2.04%2B96.9%5C%5C%5CRightarrow%20x%3D2.04%2B96.9-24.3%5C%5C%5CRightarrow%20x%3D74.64%5C%20%5Ctext%7Bg%7D)
Mass of hydrogen chloride is
.
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