3. Chemical Reactions

How many grams of sodium metal are needed to generate 4.00 L of hydrogen gas at STP from the reaction with water?

How many grams of chlorine gas (Cl2) are needed to react completely with sodium to produce 117 grams of sodium chloride (NaCl)?

What is stoichiometry?

What is the number of moles of oxygen atoms in 4.96 mol of H2O2?

What is the concentration of CaCO₃ in mol/L after a 0.2557 g sample is reacted with excess HCl, given that the excess HCl is neutralized by 31.62 mL of NaOH with a concentration of 0.0251 mol/L?

What is the expected mass of KHP (potassium hydrogen phthalate) required to react completely with 44.32 mL of KOH solution if the molarity of KOH is 0.566 M?

What mass, in grams, of potassium chlorate (KClO3) is needed to contain 0.8542 mol of oxygen atoms?

When 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) ⇌ 2AlCl3(s), how many moles of AlCl3 are formed?

When 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) → 2AlCl3(s), how many moles of the excess reactant remain at the end of the reaction?

When 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) → 2AlCl3(s), how many moles of the excess reactant remain at the end of the reaction?

When 2.50 mol of Al and 3.00 mol of Cl2 combine in the reaction 2Al(s) + 3Cl2(g) → 2AlCl3(s), how many moles of the excess reactant remain at the end of the reaction?