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To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag that gives the amounts of three key plant nutrients: nitrogen, phosphorus and potassium. For example, a bag of "10– 10 – 10" fertilizer has 10% by mass nitrogen, 10% by mass potassium as potash (K,0), and 10% by mass phosphorus as phosphate (P205). Suppose a certain fertilizer has the following composition: ingredient percent by mass calcium nitrate (Ca(NO: ,),) 26% (NH:),CO) urea 38% potassium sulfate (K2SO4) 16% inert ingredients 20% What should the first (nitrogen) number on the bag label be? That is, calculate the percent by mass of nitrogen in this fertilizer. Round your answer to the nearest percent.

To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag that gives the amounts of three key plant nutrients: nitrogen, phosphorus and potassium. For example, a bag of "10– 10 – 10" fertilizer has 10% by mass nitrogen, 10% by mass potassium as potash (K,0), and 10% by mass phosphorus as phosphate (P205). Suppose a certain fertilizer has the following composition: ingredient percent by mass calcium nitrate (Ca(NO: ,),) 26% (NH:),CO) urea 38% potassium sulfate (K2SO4) 16% inert ingredients 20% What should the first (nitrogen) number on the bag label be? That is, calculate the percent by mass of nitrogen in this fertilizer. Round your answer to the nearest percent.

Chemistry
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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To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag that gives the amounts of three key plant nutrients: nitrogen, phosphorus and potassium. For example, a bag of "10– 10 – 10" fertilizer has 10% by mass nitrogen, 10% by mass potassium as potash (K,0), and 10% by mass phosphorus as phosphate (P205). Suppose a certain fertilizer has the following composition: ingredient percent by mass calcium nitrate (Ca(NO: ,),) 26% (NH:),CO) urea 38% potassium sulfate (K2SO4) 16% inert ingredients 20% What should the first (nitrogen) number on the bag label be? That is, calculate the percent by mass of nitrogen in this fertilizer. Round your answer to the nearest percent.
Transcribed Image Text:To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag that gives the amounts of three key plant nutrients: nitrogen, phosphorus and potassium. For example, a bag of "10– 10 – 10" fertilizer has 10% by mass nitrogen, 10% by mass potassium as potash (K,0), and 10% by mass phosphorus as phosphate (P205). Suppose a certain fertilizer has the following composition: ingredient percent by mass calcium nitrate (Ca(NO: ,),) 26% (NH:),CO) urea 38% potassium sulfate (K2SO4) 16% inert ingredients 20% What should the first (nitrogen) number on the bag label be? That is, calculate the percent by mass of nitrogen in this fertilizer. Round your answer to the nearest percent.
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