Consider the following chemical reaction. 3 Zn(C:H:O2)>(aq) + 2 NasPO:(aq) –→ 6 NaCaHsOz(aq) + Zn:(PO:):(s) a) If sodium phosphate is in excess in the following balanced chemical equation, what compound is the limiting reactant? b) A chemist makes a solution of zinc acetate by dissolving 20.5 g Zn(C2HSO2)2 in 105 mL H2O. What is the concentration of this zinc acetate solution? c) How many moles of aqueous zinc acetate will react with excess aqueous sodium phosphate to precipitate one mole of solid zinc phosphate? d) The chemical formula of zinc phosphate is Zn:(PO+).. What is the formula weight of zinc phosphate? Provide an answer to two decimal places. e) Calculate the mass in grams Zn:(PO.)2 that can be precipitated from 0.105 L of a 1.06 M Zn(C2H:O2)2 Solution by the reaction with excess aqueous sodium phosphate (Na:PO4) according to the following balanced chemical equation: 3 Zn(CzH:O2):(aq) + 2 Na:PO:(aq) → 6 NaC:H:O:(aq) + Zn:(PO+):(s) f) In the reaction of 20.5 grams of Zn(C:H:O2). with excess NasPO4, would you expect the total mass of Zns(PO.)2 precipitated to be greater than, less than, or equal to the mass of the zinc acetate?
Consider the following chemical reaction. 3 Zn(C:H:O2)>(aq) + 2 NasPO:(aq) –→ 6 NaCaHsOz(aq) + Zn:(PO:):(s) a) If sodium phosphate is in excess in the following balanced chemical equation, what compound is the limiting reactant? b) A chemist makes a solution of zinc acetate by dissolving 20.5 g Zn(C2HSO2)2 in 105 mL H2O. What is the concentration of this zinc acetate solution? c) How many moles of aqueous zinc acetate will react with excess aqueous sodium phosphate to precipitate one mole of solid zinc phosphate? d) The chemical formula of zinc phosphate is Zn:(PO+).. What is the formula weight of zinc phosphate? Provide an answer to two decimal places. e) Calculate the mass in grams Zn:(PO.)2 that can be precipitated from 0.105 L of a 1.06 M Zn(C2H:O2)2 Solution by the reaction with excess aqueous sodium phosphate (Na:PO4) according to the following balanced chemical equation: 3 Zn(CzH:O2):(aq) + 2 Na:PO:(aq) → 6 NaC:H:O:(aq) + Zn:(PO+):(s) f) In the reaction of 20.5 grams of Zn(C:H:O2). with excess NasPO4, would you expect the total mass of Zns(PO.)2 precipitated to be greater than, less than, or equal to the mass of the zinc acetate?
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter15: Acid–base Equilibria
Section: Chapter Questions
Problem 98AP
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Transcribed Image Text:Consider the following chemical reaction.
3 Zn(C2HSO2):(aq) + 2 NasPO:(aq) → 6 NaC2HsO:(aq) + Zn:(PO4):(s)
a) If sodium phosphate is in excess in the following balanced chemical equation,
what compound is the limiting reactant?
b) A chemist makes a solution of zinc acetate by dissolving 20.5 g Zn(C2H3O2)2
in 105 mL H2O. What is the concentration of this zinc acetate solution?
c) How many moles of aqueous zinc acetate will react with excess aqueous
sodium phosphate to precipitate one mole of solid zinc phosphate?
d) The chemical formula of zinc phosphate is Zn:(PO:)2. What is the formula
weight of zinc phosphate? Provide an answer to two decimal places.
e) Calculate the mass in grams Zn:(PO.)2 that can be precipitated from 0.105 L
of a 1.06 M Zn(C2H3O2)2 Solution by the reaction with excess aqueous sodium
phosphate (NasPO4) according to the following balanced chemical equation: 3
Zn(C:H:O2):(aq) + 2 Na:PO«(aq) → 6 NaCaHs0:(aq) + Zn:(PO+)2(s)
f) In the reaction of 20.5 grams of Zn(C:H:O.): with excess NasPO4, would you
expect the total mass of Zns(PO.): precipitated to be greater than, less than,
or equal to the mass of the zinc acetate?
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