Chemistry moles to grams and grams to moles questions?

Question

1) The molar amount of compound present in 44.56g of iron (II) oxide is
______ mol. (make sure to round your answer to the correct number of significant digits. If you use a number less than 1, make sure to put a 0 in front of the decimal. Do NOT use scientific notation).

2) The molar amount of compound present in 450g of sulfuric acid is
_______mol. (make sure to round your answer to the correct number of significant digits. If you use a number less than 1, make sure to put a 0 in front of the decimal. Do NOT use scientific notation).

3) The mass of 0.0258mol of sodium sulfite is
________ g. (make sure to state your answer to the correct number of significant digits. If your answer is less than 1, make sure to put a 0 in front of the decimal. Do NOT use scientific notation.)


4) The mass of 10.0mol of oxygen gas is
_______ g. (make sure to state your answer to the correct number of significant digits. If your answer is less than 1, make sure to put a 0 in front of the decimal. Do NOT use scientific notation.)

Answer

ok , so this question is related to mole concept , before starting this question a few things need to be clarified .

now first of all we need to know avagadros number which is 6.023 multiplied by 10 raise to 23 .  


now 1 mole is equal to the mass of that atom in grams , than u go for unitary

Chemistry moles to grams and grams to moles questions?

Answers (1)