A. There are 28 g of salt dissolved in 400 ml of water.Consider the quantity 0.0

Question

A. There are 28 g of salt dissolved in 400 ml of water.Consider the quantity 0.07 = 28/400. 1. Give the name of the quantity if there is one. (Again, nopenalty if you don’t know it.) 2. What is the interpretation of .07 g in this context?(Again, an interpretation often begins with “It is the number of…” and is not the same thing asthe name; no credit for giving the name here.) 3. Use the interpretation to find the amount of salt dissolvedin 19 ml of the same solution.
A. There are 28 g of salt dissolved in 400 ml of water.Consider the quantity 0.07 = 28/400. 1. Give the name of the quantity if there is one. (Again, nopenalty if you don’t know it.) 2. What is the interpretation of .07 g in this context?(Again, an interpretation often begins with “It is the number of…” and is not the same thing asthe name; no credit for giving the name here.) 3. Use the interpretation to find the amount of salt dissolvedin 19 ml of the same solution.

Explanation / Answer

2. It is the concentration of NaCl per mL.
3. You multiply .07 g/mL by 19mL to get the mass.
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