Copy of Senior 2024 Spring Final Exam Part 1 (5/22/2024) (5/23/2024)
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Last updated 6 months ago
8 questions
Calculating Molar Mass
Required
2
Calculate the molar mass for calcium carbonate: CaCO3
Calculate the molar mass for calcium carbonate: CaCO3
Required
2
Calculate the molar mass for octanoic acid: C8H16O2
Calculate the molar mass for octanoic acid: C8H16O2
Grams to Moles Conversions
Required
5
Calculate the number of moles of sodium hydroxide that is present in 16.45 g of NaOH [use 41.00 g/mol as the molar mass for NaOH]
Calculate the number of moles of sodium hydroxide that is present in 16.45 g of NaOH [use 41.00 g/mol as the molar mass for NaOH]
Required
5
Calculate the number of moles of carbon dioxide that is present in 8.23 g of CO2 [use 44.01 g/mol as the molar mass for CO2]
Calculate the number of moles of carbon dioxide that is present in 8.23 g of CO2 [use 44.01 g/mol as the molar mass for CO2]
Moles to Moles Stoichiometry
Required
5
Given the balanced equation: C3H8 + 5 O2 ------> 3 CO2 + 4 H2O How many moles of C3H8 are needed to produce 25 moles CO2 ?
Given the balanced equation: C3H8 + 5 O2 ------> 3 CO2 + 4 H2O
How many moles of C3H8 are needed to produce 25 moles CO2 ?
Required
5
Given the balanced equation: 2 SO2 + O2 + 2 H2O ------> 2 H2SO4 How many moles of H2SO4 are produced from 12.5 moles of SO2 ?
Given the balanced equation: 2 SO2 + O2 + 2 H2O ------> 2 H2SO4
How many moles of H2SO4 are produced from 12.5 moles of SO2 ?
Required
5
Given the balanced equation: 2 SO2 + O2 + 2 H2O ------> 2 H2SO4 Which is the correct mole ratio to calculate how many moles of O2 are needed to produce 12.5 moles H2SO4 ?
Given the balanced equation: 2 SO2 + O2 + 2 H2O ------> 2 H2SO4
Which is the correct mole ratio to calculate how many moles of O2 are needed to produce 12.5 moles H2SO4 ?
Mass to Mass Stoichiometry
Required
5
Hydrogen reacts with excess nitrogen as follows: N2 (g) + 3H2 (g) -----> 2 NH3 (g)If 27.0 g of H2 reacts, what mass of NH3 is formed?
Hydrogen reacts with excess nitrogen as follows: N2 (g) + 3H2 (g) -----> 2 NH3 (g)
If 27.0 g of H2 reacts, what mass of NH3 is formed?