# chemistry

posted by .

4FeCr2O4+ 8K2CO3+7O2= 2Fe2O3+8K2CrO4+8CO2

how many grams of FeCr2O3 are required to produce 44g of CO2?

• chemistry -

44 g of CO2 is two moles, right?

We use the coefficents to make a mole ratio

2/8=x/4
so x is the moles of Iron(II) dichromate
So figure how many grams is x.

• chemistry -

1. Check your equation. I think you've made a typo. Fe2CrO4?? FeCrO4 perhaps? Then make sure the equation is balanced.

2. Convert 44 g CO2 to moles. moles = grams/molar mass.

3. Using the coefficients in the balanced equation, convert moles CO2 to moles of what you want.

4. Now convert moles from 3 to grams.
grams = moles x molar mass.

## Similar Questions

1. ### Chemistry

I need help the question is Convert 25 x 10 to the 25th molecules of CO2 to grams of CO2. I know that one molecule of CO2 is 44.01 g but the answers are .106g,9.44g,1.8x10^4 g, and 2.5 x 10^4 g I don't get it can anyone help me!
2. ### Chemistry

4FeCr2O7 + 8K2C03 + O2 --> 2Fe2O3 + 8K2CrO4 + 8CO2 a). How many grams of FeCr2O7 are required to produce 44.0 g of CO2
3. ### Chem 11

How many grams of O2 are required to produce 255grams of SO2 in following reaction?
4. ### chem

consider the equation for the following questions 2C2H6(g) + 7o2(g) 4 CO2(g) +6H2O(g) How many grams of CO2 are produced when 2.00moles of C2H6 react with sufficient oxygen?
5. ### Chemistry

2C2H6 +7O2 --> 4CO2 + 6H2O If 6 moles of O2 are used in the following reaction, how many grams of CO2 will be produced?
6. ### chemistry

In the following reaction, how many grams of ferrous sulfide (FeS) will produce 0.56 grams of iron (III) oxide (Fe2O3)?
7. ### chemistry

How many grams of O2 are needed to produce 45.8 grams of Fe2O3 in the following reaction?
8. ### chemistry

In the following reaction, how many grams of ferrous sulfide (FeS) will produce 0.56 grams of iron (III) oxide (Fe2O3)?
9. ### Chemistry

In the following reaction, how many grams of ferrous sulfide will produce 0.56 grams of iron oxide?
10. ### chemistry

if 5.76 grams of co2 forms when 4.00 grams of c2h6 reacts, what is the percent yield for 2c2h6+7o2=4co2+6h2o

More Similar Questions