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), and10% by mass phosphorus as phosphate (P₂O).Suppose a certain fertilizer has the following composition:Ingredient* ((NH,),CO)potassium sulfate (K,SO₂)potassium chloride (KC1)0%ureainert ingredientspercent by mass40%15%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 thenearest percent.D.P9%36%EG

Consider that the total mass of the mixture is 100g. Percent by mass of urea (fertilizer) is 40%.…

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,O), and 10% by mass phosphorus as phosphate (P.O.) Suppose a certain fertilizer has the following composition: Ingredient ((NH,)_CO) potassium sulfate (K,SO,) potassium chloride (KC) urea inert ingredients percent by mass X 40% 9% 36% 15% 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. 5

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,O), and 10% by mass phosphorus as phosphate (P.O.) Suppose a certain fertilizer has the following composition: Ingredient ((NH,)_CO) potassium sulfate (K,SO,) potassium chloride (KC) urea inert ingredients percent by mass X 40% 9% 36% 15% 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. 5

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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I = 126.90g /mol C = 12.01g /mol O = 16.00g /mol
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Mass NaHCO3 = 6.9341 g 5. Calculate the moles of NaHCO3 in the sample and record the data below. 0.0825 mol 6. Drag the 25 mL empty graduated cylinder under the sink tap and hold it there till it fills with water. (When the graduated cylinder is full, it will automatically snap back into place.) Pour that water into the beaker with the NaHCO3. Then pour the beaker with the solution into the 50 mL graduated cylinder (the largest one). Hold the 50 mL cylinder under the tap until it fills with water to make an aqueous solution of NaHCO3. Note that the solid is added and dissolved before the volume is measured when making a molar solution. Chemists normally use a volumetric flask for making molar solutions, but this is not available in the simulation. Record the volume of the solution, in L, below. Volume NaHCO3 = 0.05 7. The molarity is calculated using the formula: L Calculate the molarity of the NaHCO3 solution in units of mol/L. M 8. If the density of the solution is 1.047 g/mL,…