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The morality of a solute in solution is defined to be the
Chapter 2, Problem 7E(choose chapter or problem)
The molarity of a solute in solution is defined to be the number of moles of solute per liter of solution \(\left(1 \text { mole }=6.02 \times 10^{23} \text { molecules }\right)\). If X is the molarity of a solution of magnesium chloride \(\left(\mathrm{MgCl}_{2}\right)\), and Y is the molarity of a solution of ferric chloride \(\left(\mathrm{FeCl}_{3}\right)\), the molarity of chloride ion \(\left(\mathrm{Cl}^{-}\right)\) in a solution made of equal parts of the solutions of \(\mathrm{MgCl}_{2}\) and \(\mathrm{FeCl}_{3}\) is given by \(M=X+1.5Y\). Assume that X has mean 0.125 and standard deviation 0.05, and that Y has mean 0.350 and standard deviation 0.10.
a. Find \(\mu_M\).
b. Assuming X and Y to be independent, find (\sigma_M\).
Equation Transcription:
Text Transcription:
(1 mole=6.02x10^23 molecules)
(MgCl_2)
(FeCl_3)
(Cl^-)
MgCl_2
FeCl_3
M=X+1.5Y
mu_M
sigma_M
Questions & Answers
QUESTION:
The molarity of a solute in solution is defined to be the number of moles of solute per liter of solution \(\left(1 \text { mole }=6.02 \times 10^{23} \text { molecules }\right)\). If X is the molarity of a solution of magnesium chloride \(\left(\mathrm{MgCl}_{2}\right)\), and Y is the molarity of a solution of ferric chloride \(\left(\mathrm{FeCl}_{3}\right)\), the molarity of chloride ion \(\left(\mathrm{Cl}^{-}\right)\) in a solution made of equal parts of the solutions of \(\mathrm{MgCl}_{2}\) and \(\mathrm{FeCl}_{3}\) is given by \(M=X+1.5Y\). Assume that X has mean 0.125 and standard deviation 0.05, and that Y has mean 0.350 and standard deviation 0.10.
a. Find \(\mu_M\).
b. Assuming X and Y to be independent, find (\sigma_M\).
Equation Transcription:
Text Transcription:
(1 mole=6.02x10^23 molecules)
(MgCl_2)
(FeCl_3)
(Cl^-)
MgCl_2
FeCl_3
M=X+1.5Y
mu_M
sigma_M
ANSWER:
Solution:
Step 1 of 3:
The morality of a solute in solution is defined to be the number of moles of solute per litre of solution. Let X be the mortality of a solution of MgC.and Y is the morality of a solution of FeC. The morality of chloride in a solution made of equal parts of solutions of MgCand FeC is M= X+ 1.5Y. Here X has mean 0.125 and standard deviation 0.05, and Y has mean
0.350 and standard deviation 0.10.
We have to find
- E(X)
- when X and Y are independent.