Mass help thing *sigh* (1 Viewer)

[jackerino]

A beaker contains 100mL of silver sulfate (Ag2SO4) solution at a concentration of
1.0 x 10-5 mol L-1
.
What is the mass of silver ions in the beaker?
(A) 1.0 x 10-5g
(B) 2.16 x 10-4g
(C) 1.08 x 10-3g
(D) 1.5 x 10-2g

 

[Thief]

I think the answer is B

n = cV = 0.1 x 1.0 x 10^-5 = 1 x 10^-6

n = m/M
1.0 x 10^-6 = m/(107.9x2)
m = (107.9 x 2) x 1.0 x 10^-6
= 2.16 x 10^-4

I may be wrong (not the best at chem lol)

 

[jackerino]

I think the answer is B

n = cV = 0.1 x 1.0 x 10^-5 = 1 x 10^-6

n = m/M
1.0 x 10^-6 = m/(107.9x2)
m = (107.9 x 2) x 1.0 x 10^-6
= 2.16 x 10^-4

I may be wrong (not the best at chem lol)

WHAAT i did exactly that, and my calculator said a different number... LOL gotta fix calculator it seems.