Question

If 5.2 g of K2CrO4 and enough AgNO3 to completely react are mixed, how many grams of KNO3 will be produced?
2AgNO3 + K2CrO4 = Ag2CrO4 + 2KNO3

Answer 1

@Abhisar

Answer 2

What is the molar mass of K2CrO4 and KNO3?

Answer 3

120g/mol?

Answer 4

You can use this
http://www.lenntech.com/calculators/molecular/molecular-weight-calculator.htm

Answer 5

Got it?

Answer 6

K2CrO4=194g/mol
KNO3=101g/mol

295g/mol

Answer 7

no you don't need to add them up..

Answer 8

oh ok

Answer 9

now, see the equation. According to it, 2 moles of KNO3 is produced from 1 mole of K2CrO4.

Answer 10

ryt??

Answer 11

yeah

Answer 12

now convert 5.2 K2CrO3 into moles

Answer 13

183g/mol

Answer 14

5.2/194 =?

Answer 15

.0268

Answer 16

yes, sice 1 mole of it produces two moles of KNO3, .268 moles of it will produce .536 moles of KNO3. Finally convert this into grams and that will be your answer.

Answer 17

convert .536 moles into grams?

Answer 18

yep, use molar mass of KNO3 this time.

Answer 19

I dont know how to do that...

Answer 20

1 mole=101 gram
=> .536 moles = .536*101 grams

Answer 21

54.136 g?

Answer 22

yes

Answer 23

thats the answer?

Answer 24

yes

Answer 25

Thank You :)))

Answer 26

welcome