Chemistry Problem?

2 ⤊

Deuterium is an isotope of hydrogen. The abundance of deuterium in water is 0.015%. How many moles of water would be required to obtain 0.074 moles of deuterium (D subscript2)?

2007-08-28 03:16:08 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

4 answers

.074 moles D2 x (1 mole water / .00015 moles D2) = 493 moles water

2007-08-28 03:41:56 · answer #1 · answered by Dr W 7 · 2⤊ 0⤋

15*10^-5 * x = 0.074

or x = 493.33 moles

2007-08-28 03:28:06 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋

2 liters

2007-08-28 03:19:21 · answer #3 · answered by vidkid234 3 · 0⤊ 1⤋

0.074 moleD*3grD/1moleD*100grH2O/.015grD*1moleH2O/18grH2O=82.22 moleH2O

2007-08-28 03:33:31 · answer #4 · answered by saeed k 1 · 0⤊ 1⤋