Using the following data, determine the percent composition (by mass) of the NaCl (salt) in a binary mixture. The mass of the unknown binary mixture is 23.76g and the mass of the SiO2 (sand) alone is 15.01g. Record your answer to 3 significant figures, and include the percentage sign ('%'), or 'percent'.

The percent composition (by mass) of the NaCl (salt) in a binary mixture is 36.8%

Explanation:

Binary mixture is a mixture containing two components which are mixed together in any proportion and do not combine chemically with each other.

Mass of mixture=Mass of +Mass of = 23.76 g

Mass of = 15.01 g

Mass of = 23.76 g - 15.01 g =8.75 g

To calculate the mass percentage ,we use the formula:

Putting values in above equation, we get:

Thus the percent composition (by mass) of the NaCl (salt) in a binary mixture is 36.8%

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

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