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#### Asaph

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##### Mass percentage
« on: November 07, 2018, 06:42:24 PM »

A salt whose formula is Na2SxOy,is 47.5% by mass .
Find x.

I tried to set it at 100g eith 47.5g sulfur and thus
Putting the rest at combined 52.2g ,
Then im stucked, two unknowns here,

A little help
« Last Edit: November 07, 2018, 08:11:25 PM by Asaph »
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#### Borek

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##### Re: Mass percentage
« Reply #1 on: November 07, 2018, 08:56:56 PM »

Try trial and error (assume some small values of x, y and calculate S mass percentage for each).

Your approach is not bad, but won't get you past the fact it is impossible to easily translate fact that x and y are integers into an equation.
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