Calculating Mole Ratio from Mass Ratio of N,P,K

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    Mass Mole Ratio
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Discussion Overview

The discussion centers around calculating the mole ratio from a given mass ratio of nitrogen (N), phosphorus (P), and potassium (K), specifically with a mass ratio of 10:11:14. Participants seek clarification on how to convert these mass values into mole ratios.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant asks for help in understanding how to derive the mole ratio from the mass ratio of N, P, and K.
  • Another participant suggests converting the mass values to moles using the formula weights of each element, then comparing the results to find the closest whole number ratios.
  • A different participant mentions the need for common factor or common divisor operations to achieve the whole number ratio relationship.
  • A repeated post reiterates the mass ratio and asks for assistance, emphasizing the importance of converting to moles and providing a hint against using tons for measurement.

Areas of Agreement / Disagreement

The discussion does not present a consensus on the method to derive the mole ratio, as participants provide different approaches and hints without agreeing on a single solution.

Contextual Notes

Participants have not specified the atomic weights of the elements involved, which may affect the conversion process. There is also no resolution on the exact method to be used for the calculations.

Who May Find This Useful

Students or individuals interested in chemistry, particularly those learning about stoichiometry and mole conversions.

Larrytsai
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Mass ratio of N,P,K is 10 11 14, what is the mole ratio?

a) 14, 11, 10
b) 28,11,10
c) 20, 10, 10

The answer is C) but i don't understand how to get there... can anyone help me get started?
 
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Convert to mole values using the formula weights of each element. Then compare using closest whole number ratios.
 
You may need to do some common factor or common divisor operation to obtain that "whole number ratio" relationship.
 
Larrytsai said:
Mass ratio of N,P,K is 10 11 14, what is the mole ratio?

a) 14, 11, 10
b) 28,11,10
c) 20, 10, 10

The answer is C) but i don't understand how to get there... can anyone help me get started?

There will be 10 parts (grams or tons, or pounds, etc...) of N, 11 parts of P and 14 parts of K. Convert that to moles using units that you are familiar with.

Hint: Don't use tons...
 

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