Question

Help please. What volume of 0.305 M AgNO3 is required to react exactly with 155.0 mL of 0.274 M Na2SO4 solution?

Answer 1

can u write balanced reaction for this ?

Answer 2

it would be AgNO3+Na2SO4->2NaNO3+Ag2SO4. What should I do next?

Answer 3

do u think Ag is balanced check once again on left

Answer 4

oh yeah it would be 2AgNO3+Na2SO4->2NaNO3+Ag2SO4

Answer 5

good

Answer 6

And what do I do next?

Answer 7

You need 2 moles of AgNO3 per mole of Na2SO4

Answer 8

V1M1=2*V2M2
V*0.305 = 2*155*0.274

Answer 9

did u get or noo @cherry2012

Answer 10

yes i got 278. Can u just explain to me why I need to moles of AgNO3 per Na2SO4?

Answer 11

bocoz can u see it in balanced reaction two behind AgNO3 and 1 behind Na2SO4
it should be balanced to calculate always

Answer 12

oh okay thank u for ur help:)

Answer 13

ur welcome