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Highland Science Department Gas Stoichiometry -using the ideal gas law to establish the number of moles of a gas in a given volume at any temperature and pressure allows us to determine quantities used and produced in chemical reactions. Highland Science Department Gas Stoichiometry
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Highland Science Department Gas Stoichiometry -using the ideal gas law to establish the number of moles of a gas in a given volume at any temperature and pressure allows us to determine quantities used and produced in chemical reactions.
Highland Science Department Gas Stoichiometry Steps for Solving Gas Stoichiometry problems
Highland Science Department Gas Stoichiometry Steps for Solving Gas Stoichiometry problems 1. Write a balanced equation for the reaction
Highland Science Department Gas Stoichiometry Steps for Solving Gas Stoichiometry problems 1. Write a balanced equation for the reaction 2. Convert all amounts to moles
Highland Science Department Gas Stoichiometry Steps for Solving Gas Stoichiometry problems 1. Write a balanced equation for the reaction 2. Convert all amounts to moles 3. Compare molar amounts using stoichiometry ratios from the balanced equation
Highland Science Department Gas Stoichiometry Steps for Solving Gas Stoichiometry problems 1. Write a balanced equation for the reaction 2. Convert all amounts to moles 3. Compare molar amounts using stoichiometry ratios from the balanced equation 4. Convert the moles into the units required, using the ideal gas law
Highland Science Department Gas Stoichiometry e.g. What volume of hydrogen gas is produced when excess sulfuric acid reacts with 40.0 g of iron at 18 oC and 100.3 kPa?
Highland Science Department Gas Stoichiometry e.g. What volume of hydrogen gas is produced when excess sulfuric acid reacts with 40.0 g of iron at 18 oC and 100.3 kPa? G: H2SO4(aq) + Fe(s) H2(g) + FeSO4(s) mass Fe = 40.0g temperature = 18 oC = 291 K pressure = 100.3 kPa
Highland Science Department Gas Stoichiometry e.g. What volume of hydrogen gas is produced when excess sulfuric acid reacts with 40.0 g of iron at 18 oC and 100.3 kPa? G: H2SO4(aq) + Fe(s) H2(g) + FeSO4(s) mass Fe = 40.0g temperature = 18 oC = 291 K pressure = 100.3 kPa
Highland Science Department Gas Stoichiometry e.g. What volume of hydrogen gas is produced when excess sulfuric acid reacts with 40.0 g of iron at 18 oC and 100.3 kPa? U: volume of H2
Highland Science Department Gas Stoichiometry e.g. What volume of hydrogen gas is produced when excess sulfuric acid reacts with 40.0 g of iron at 18 oC and 100.3 kPa? M.M. M.R. S: 1. mass Fe moles Fe moles H2 2. PV = nRT V = nRT P
Highland Science Department Gas Stoichiometry e.g. What volume of hydrogen gas is produced when excess sulfuric acid reacts with 40.0 g of iron at 18 oC and 100.3 kPa? S: 1. moles H2 = 40.0g Fe = 0.7168 mol H2
Highland Science Department Gas Stoichiometry e.g. What volume of hydrogen gas is produced when excess sulfuric acid reacts with 40.0 g of iron at 18 oC and 100.3 kPa? S: 1. moles H2 = 40.0g Fe = 0.7168 mol H2 2. V = (0.7168)(8.314)(291.15) 100.3 = 17 L H2