Question

1.How many grams of glucose (C₆H₁₂O₆) are produced if 17.3 mol of H₂O are reacted according to this balanced chemical equation? 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

2. Nitroglycerin [C₃H₅(ONO₂)₃] is made by reacting nitric acid (HNO₃) with glycerol [C₃H₅(OH)₃] according to this reaction:

C₃H₅(OH)₃ + 3HNO₃ → C₃H₅(ONO₂)₃ + 3H₂O

If 87.4 g of HNO₃ is reacted with excess glycerol, what mass of nitroglycerin can be made?

3. Precipitation reactions, in which a solid (called a precipitate) is a product, are commonly used to remove certain ions from solution. One such reaction is as follows:

Ba(NO₃)₂(aq) + Na₂SO₄(aq) → BaSO₄(s) + 2NaNO₃(aq)

How many grams of Na₂SO₄ are needed to precipitate all the barium ions produced by 43.9 g of Ba(NO₃)₂?

4.The SS Hindenburg contained about 5.33 × 10⁵ g of H₂ gas when it burned at Lakehurst, New Jersey, in 1937. The chemical reaction is as follows:

2H₂ + O₂ → 2H₂O

How many grams of H₂O were produced?

5. How many moles of each element are present in 0.00445 mol of each compound?

HCl

Al₂(CO₃)₃

6. Hemoglobin (molar mass is approximately 64,000 g/mol) is the major component of red blood cells that transports oxygen and carbon dioxide in the body. How many moles are in 0.034 g of hemoglobin?

Answer 1

moles of H2O rearted = 17.3 mol Gonal Ho - Imol of CH 2 206 mol of CG Hi 2 06 = 1x17 3 = 2.88 mol mass og Co H1206 = 2.88 mol x 180-156 g/mol = 519.459 moles of HNO₃ = 87.49 = 1.387 mal 63.01ghmal 3 manna imal CarslonO2)3 mot of C3 HS (ONG)3 = 4 x 1.387 mal - 0.462 mol Mass of C3HS (ONO )3 = 0.462 mol + 227.08 glonal = 104.99 mol of 43.9g Ba(NO3)₂ = 43.99 = 0.168 mol Amoles of Na2SO4 = 0.168 mal mass of Na₂SO4 0.168 mol x 142.042 glmal 3. 261.33781 mol - = 23.86 g moles of H₂ = 5.33x10g = 2.64 x 105 moles 2.016 g/mol moles of H₂O = 2.648105 mass of H2O = 2.64X105 x 18 g/mol = 47.52X105 g = 4.75