Dimensional Analysis Answers

The molar mass of iron (III) oxide (Fe2O3) is 159.7 g/mol. What is the correct way to write the molar mass of iron oxide as a conversion factor?

The correct calculation is shown below. Did you perform the calculation correctly?

The molar mass of aluminum oxide (Al2O3) is 102.0 g/mol. What is the correct way to write the inverted molar mass of aluminum oxide as a conversion factor?

The molar mass of water (H2O) is 18.02 g/mol. Yun has 0.025 mol of H2O for a laboratory experiment. How many grams of water does she have?

Consider again the thermite reaction. If 0.0257 g Al react completely, what mass of Fe forms? Use the periodic table to find molar masses.Fe2O3 + 2Al Al2O3 + 2FeSelect the correct setup for this calculation.

Consider again the thermite reaction. If 0.0257 g Al react completely, what mass of Fe forms? Use the periodic table to find molar masses.Fe2O3 + 2Al Al2O3 + 2FeThe correct setup allows you to cancel terms to yield the mass of iron:What mass of Fe forms? Make sure to give your answer with the correct number of significant figures.A total of 0.0257 g Al forms g Fe.

Water (H2O) forms when hydrogen gas (H2) and oxygen gas (O2) react according to the equation below:2H2 +O2 → 2H2OWhat mass of water forms when 1.45 × 10-3 g O2 react completely? (Molar mass of O2 = 32.00 g/mol; molar mass of H2O = 18.02 g/mol)

Consider again the reaction for photosynthesis: 6CO2 + 6H2O C6H12O6 + 6O2.Select the correct mole ratio to complete the calculation shown below.