06 Jun CHEM099 Montgomery College T. ChenChemistry, Rockv
CHEM099 Montgomery College T. ChenChemistry, RockvilleWS_Solution Stoichiometry1. What is the concentration of a NaOH solution made by dissolving 3.55 moles of NaOH in water to a finalvolume of 945 mL?2. What is the volume, in mL, of a solution if it contains 24.5 moles of Cu2+ and the concentration of Cu2+ is0.043 M?3. How many moles of HCl are needed to make a 13.3 mL solution at 35.0 mM?4. How many grams of Ca3(PO4)2 can be made when 60.0 mL of 0.55 M Ca(OH)2(aq) reacts with 40.0 mL of0.88 M H3PO4(aq)?MWCa(OH)2 74.09H3PO4 97.99Ca3(PO4)2 310.18CHEM099 Montgomery College T. ChenChemistry, Rockville5. How many mL of 0.112 M silver nitrate are needed to react with 2.57 mg of Cu to make Cu (II) nitrate andsilver?6. How many mL of 1.2 M lead (II) nitrate is needed to react with an excess amount of KI to make 13.2 g oflead (II) iodide?7. How many mL of a 0.0500 M H2SO4 solution are needed to exactly neutralize 33.0 mL of 0.760 M KOH?MWH2SO4 98.08KOH 56.11
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