NaBr = molar mass NaBr
NaCl = molar mass NaCl
Na = atomic mass Na.
Let x = NaCl
y = NaBr
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x + y = 2
x(Na/NaCl) + y(Na/NaBr) = 0.75
Solve the two equations simultaneously fo x and y.
a mixture of NaBr & NaCl has a mass of 2g & found to contain 0.75g of Na. What is the mass of NaBr in the mixture?
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