The formula of an acid is H2XO6. The mass of 102 molecules of the acid is 23,010 amu. What is the atomic weight of X?
2007-09-23 09:30:24 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
You know that O has an atomic weight of 16, Hydrogen is 1,
so if you had 102 molecules of the acid,
youd technically have 204 Hydrogens
and 612 Oxygens
and 102 X's
so youd have 204 + (16 X 612) +102X = 23,010
so youd get
9996 + 102 X = 23,010
102 X = 13014
X = 127.6
2007-09-23 09:41:46 · answer #1 · answered by barghuthi 2 · 0⤊ 0⤋
Divide 23,010 by 102, take 6 x 16 off, and then 2 x 1 off, and you are left with the Ar of X.
2007-09-23 09:38:08 · answer #2 · answered by Gervald F 7 · 0⤊ 0⤋
maas of 1 molecule of acid = 23010 amu /102
= 225.6 amu
2 + at.wt.of x + 96 = 225.6
at. wt. of x = 225.6 - 98 = 127.6 amu
2007-09-23 09:50:14 · answer #3 · answered by jamaliekal 2 · 0⤊ 0⤋
23010/102=225.588...
225.588...-(6x16)-2=127.6
which is the Atomic weight of the element
2007-09-23 09:39:45 · answer #4 · answered by mr.integral 3 · 0⤊ 0⤋