4) A 11.31 g sample of a competitor's "SonicBloom" fertilizer is analyzed for its phosphorus content by gravimetric analysis through a reaction with magnesium sulfate and ammonia in water. The resulting MGNH4PO4 · 6H2O precipitate was dried and had a mass of 7.11 g. a) How many moles of phosphorus atoms are in the fertilizer sample? b) What is the weight percentage of phosphorus atoms in the fertilizer? c) What is the weight percentage of P2O5 in the fertilizer? (Or in other words, what was its middle N-P-K number?)

4) A 11.31 g sample of a competitor's "SonicBloom" fertilizer is analyzed for its phosphorus content by gravimetric analysis through a reaction with magnesium sulfate and ammonia in water. The resulting MGNH4PO4 · 6H2O precipitate was dried and had a mass of 7.11 g. a) How many moles of phosphorus atoms are in the fertilizer sample? b) What is the weight percentage of phosphorus atoms in the fertilizer? c) What is the weight percentage of P2O5 in the fertilizer? (Or in other words, what was its middle N-P-K number?)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

4) A 11.31 g sample of a competitor's "SonicBloom" fertilizer is analyzed for its phosphorus
content by gravimetric analysis through a reaction with magnesium sulfate and ammonia
in water. The resulting MGNH4PO4 - 6H20 precipitate was dried and had a mass of 7.11
g.
a) How many moles of phosphorus atoms are in the fertilizer sample?
b) What is the weight percentage of phosphorus atoms in the fertilizer?
c) What is the weight percentage of P205 in the fertilizer? (Or in other words, what
was its middle N-P-K number?)

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