Asample of vinaigrette salad dressing has a total mass of 188 g, and a total volume of 196 cm^3 and consists of only oil (.909g/cm^3) and vinegar (1.056 g/cm^3) what is the volume of each component of the mixture

Total volume of the sample =

Let the volume of oil be x

Volume of vinegar be y

x + y = ------------------Equation-1

Density of oil = 0.909

Density of vinegar = 1.056

Mass of oil = x * 0.909 =0.909x

Mass of vinegar = y * 1.056 =1.056y

Total mass of sample = 188 g

0.909x + 1.056y=188 ------------------ Equation -2

Using the equation x + y = 196 ==> x = 196 - y in equation-2 we get,

0.909x + 1.056y=188

0.909(196 - y) + 1.056y=188

178.196 - 0.909 y + 1.056 y = 188

178.196 + 0.147 y = 188

0.147 y = 9.831

y = 66.9

Finding out the value of x :

x + y = 196

x + 66.9 = 196

x = 129.1  

Therefore, the volume of oil = 129.1   and volume of vinegar = 66.9  

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