The equation tells you that 2 mol CO2 are used when 3 mol O2 are produced.
You produce 8.5g O21
Molar mass O2 = 32g/mol
mol O2 in 8.5g = 8.5/32 = 0.2656 mol O2
This will require 0.2656*2/3 = 0.1771 mol CO2 is used
Molar mass CO2 = 44g/mol
Mass of 0.1771 mol CO2 = 0.1771*44 = 7.792 g CO2 used
Answer correct to 2 significant figures = 7.8g CO2 used.
1 mole H2O ------------- 6.02x10²³ molecules
?? moles H2O ---------- 2.0x10²² molecules
( 2.0x10²²) x 1 / 6.02x10²³ => 0.03322 moles
hope this helps!
How many grams Nitrogen in 1 mol? The answer is 14.0067. We assume you are converting between grams Nitrogen and mole. You can view more details on each measurement unit: molecular weight of Nitrogen or mol The molecular formula for Nitrogen is N. The SI base unit for amount of substance is the mole. 1 grams Nitrogen is equal to 0.071394404106606 mole. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between grams Nitrogen and mole. Type in your own numbers in the form to convert the units!
