1. If sulfuric acid reacts with 30.0g of sodium chloride, how many grams of hydrochloric acid are produced?
2. If ammonium sulfate reacts with 20.0g of calcium hydroxide, how many grams of ammonium hydroxide are produced?
3. How many liters of oxygen gas are required to react with 84.9g of carbon to produce carbon dioxide?
2007-11-29 07:41:47 · 1 answers · asked by (: Muffin Man :) 2 in Science & Mathematics ➔ Chemistry
1. H2SO4 + 2NaCl ===> 2HCl + Na2SO4
Atomic weights: Na=23 Cl=35.5 NaCl=58.5 H=1 HCl=36.5
30.0gNaCl x 1molNaCl/58.5gNaCl x 2molHCl/2molNaCl x 36.5gHCl/1molHCl = 18.7g HCl
2. (NH4)2SO4 + Ca(OH)2 ===> CaSO4 + 2NH4OH
Atomic weights: Ca=40 O=16 H=1 Ca(OH)2=74 N=14 NH4OH=35
20.0gCa(OH)2 x 1molCa(OH)2/74gCa(OH)2 x 2molNH4OH/1molCa(OH)2 x 35gNH4OH/1molNH4OH = 18.9g NH4OH
3. C + O2 ===> CO2
Atomic weights: C=12
84.9gC x 1molC/12gC x 1molO2/1molC x 22.4LO2/1molO2 = 158 L O2
2007-11-29 07:56:25 · answer #1 · answered by steve_geo1 7 · 0⤊ 0⤋