Stoichiometry Practice

Balance the following reaction:
Mg(s)   +   HCl(aq)  -->   MgCl₂(aq)   +   H₂(g)

• 1,2,1,2
• 2,1,1,2
• 1,2,1,1
• 1,2,2,2

Using the balanced equation in question 1,
Mg(s)   +   HCl(aq)  -->   MgCl₂(aq)   +   H₂(g)
How many grams of HCl are consumed by the reaction of 2.50 moles of magnesium?

• 5.00 g
• 7.29
• 182 g
• 218 g

2NaClO₃ (s) → 2NaCl (s) + 3O₂ (g)  
12.00 moles of NaClO₃ will produce how many grams of O₂?

• 256 g of O₂
• 576 g of O₂
• 288 g O₂

Cl₂ + 2KBr → Br₂ + 2KCl
How many grams of potassium chloride (KCl) can be produced from 356 g of potassium bromide (KBr)?

• 749 g
• 223 g
• 479 g
• 814 g

What Mass of sulfur must burn to produce 3.42 L of SO₂ @ 273K and 101 kPa?

Use the following Equation : S + O₂ --> SO₂

• 2.45 g S

• 5.00 g S

• 4.88 g S