A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 46.60 mL of 0.08765 M AgNO, (aq) to precipitate the Cl(aq) and Br(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the mixture. mass percentage: Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to the reaction BaO,(s) + H,SO,(aq) — BaSO, (s) + H,O,(aq) How many milliliters of 2.25 M H₂SO, (aq) are needed to react completely with 39.1 g BaO₂ (s)? % N

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Please help with these Molarity problems
A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 46.60 mL of
0.08765 M AgNO, (aq) to precipitate the Cl(aq) and Br" (aq) as AgCl(s) and AgBr(s).
Calculate the mass percentage of NaCl(s) in the mixture.
mass percentage:
Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to the reaction
BaO₂ (s) + H₂SO4 (aq) → BaSO₂ (s) + H₂O₂ (aq)
How many milliliters of 2.25 M H₂SO, (aq) are needed to react completely with 39.1 g BaO₂ (s)?
V =
How many milliliters of 10.5 M HCl(aq) are needed to prepare 745.0 mL of 1.00 M HCl(aq)?
V =
mL
% N
m
Transcribed Image Text:Please help with these Molarity problems A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 46.60 mL of 0.08765 M AgNO, (aq) to precipitate the Cl(aq) and Br" (aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the mixture. mass percentage: Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to the reaction BaO₂ (s) + H₂SO4 (aq) → BaSO₂ (s) + H₂O₂ (aq) How many milliliters of 2.25 M H₂SO, (aq) are needed to react completely with 39.1 g BaO₂ (s)? V = How many milliliters of 10.5 M HCl(aq) are needed to prepare 745.0 mL of 1.00 M HCl(aq)? V = mL % N m
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