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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 (K₂O), and 10% by mass phosphorus as phosphate (P₂O5). Suppose a certain fertilizer has the following composition: ingredient calcium nitrate (Ca(NO, (Ca (NO₂)₂) urea ((NH,),CO) potassium sulfate (K₂SO4) inert ingredients percent by mass 41% 28% 6% 25% 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 (K₂O), and 10% by mass phosphorus as phosphate (P₂O5). Suppose a certain fertilizer has the following composition: ingredient calcium nitrate (Ca(NO, (Ca (NO₂)₂) urea ((NH,),CO) potassium sulfate (K₂SO4) inert ingredients percent by mass 41% 28% 6% 25% 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: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter3: Chemical Reactions
Section: Chapter Questions
Problem 139QRT
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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 (K2O), and 10% by mass phosphorus as phosphate (P2O5). Suppose a certain fertilizer has the following composition. What should the first (nitrogen) number on the bag label be? That is, calculate the 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 (K₂O), and 10% by mass phosphorus as phosphate (P₂O5). Suppose a certain fertilizer has the following composition: ingredient calcium nitrate (Ca(NO, (Ca (NO₂)₂) urea ((NH,),CO) potassium sulfate (K₂SO4) inert ingredients percent by mass 41% 28% 6% 25% 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 (K₂O), and 10% by mass phosphorus as phosphate (P₂O5). Suppose a certain fertilizer has the following composition: ingredient calcium nitrate (Ca(NO, (Ca (NO₂)₂) urea ((NH,),CO) potassium sulfate (K₂SO4) inert ingredients percent by mass 41% 28% 6% 25% 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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