Calculate the mass of 10 0 mL of a I quid that has 3 density of 0.7863 g/mL. Sho

Question

Calculate the mass of 10 0 mL of a I quid that has 3 density of 0.7863 g/mL. Show your work. Express the correct number of significant figures and the proper units. A piece of metal was weighed on a laboratory balance four (4) times and gave the results: 15.75,15.72,15.79, and 15 76 grams Determine the standard deviation from mean mass. Show your work. Express the correct number of significant figures and You may be able to separate NH_4Cl(s), NaCl(s), and SiO_2(s) from their mixture in a different order than what you actually did in the laboratory. Explain.

Explanation / Answer

1)

To calculate volume, we have to use density (D)= mass (M)/ volume (V) formula.

Given density (d)= 0.7863 g/mL; mass (M)= ?; volume (V)= 10 mL

or Mass (M)= Volume (V) x density (D)

Mass (M)= 10 mL x 0.7863 g/mL

Mass (M) = 7.863 g

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