A Sample of Water That Is 99 $10 ^ { 24 }$

Multiple Choice

A sample of water that is 99.9999 percent pure contains 0.0001 percent impurities.Consider from Chapter 1 that a glass of water contains on the order of a trillion trillion (1 × $10 ^ { 24 }$ ) molecules.If 0.0001 percent of these molecules were the molecules of some impurity,about how many impurity molecules would this be?

A) 1000 (one thousand: 1 × $10 ^ { 3 }$ )
B) 1,000,000 (one million: 1 × $10 ^ { 6 }$ )
C) 1,000,000,000 (one billion: 1 × $10 ^ { 9 }$ )
D) 1,000,000,000,000,000,000 (one million trillion: 1 × $10 ^ { 18 }$