pho le

Questions and answers by visitors named pho le

Questions (3)

How many atoms of mercury are present in3.2 cubic centimeters of liquid mercury? The density of mercury is 13.55 g/cc.
1. 3 answers
2. 683 views
14 carat gold has a purity of 58.3%. Howmany moles of gold are in 137 grams of 14 carat gold? Answer in units of moles.
1. 3 answers
2. 1,324 views
A sample of air contains 14.5 µg/m3of beryllium dust. How many atoms of beryllium are present in a room with dimensions of 11
1. 1 answer
2. 488 views