The formula for methane L is CH_4. This means that, in methane. for every 100 at

Question

The formula for methane L is CH_4. This means that, in methane. for every 100 atoms of hydrogen there are 400 atoms of carbon for every atom of carbon there are tour grams of hydrogen. for every gram of hydrogen there are twelve grams of carbon the compound is 25% hydrogen by mass. the compound is 80% hydrogen by mass How many moles of Fe are needed to produce 10.0 mol of H_2? 4H_2O (g) + 3 Fe (s) rightarrow Fe_3O_4 (s) + 4 H_2 (g) 7.50 mol 15.0 mol 13.3 mol 30.0 mol Assuming complete oxidation in the reaction C (s) + O_2 (R) rightarrow CO_2 (g) what mass of CO_2 will 15 g of carbon produce ?

Explanation / Answer

The formula for methane CH4

Answer = option D

In methane, there are 12.0 g of carbon for every 4.00 g of hydrogen, a ratio of 3:1 by mass

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Assuming complete oxidation, C(s)+O2(g)=CO2(g) what mass of CO2 will 15g of carbon produce?

2 g of C will (completely react with 32 g O to) produce 44 g of CO2;
15 g of C will produce x = (15 x 44)/12 = 55 g CO2.-ANSWER

OPTION :D.-ANSWER

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Q6 answer

3 Fe-----------------------4H2

-??---------------------------10 H2

(10/4) *3=7.5 MOL-ANSWER

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