all of question 2 please :)

2. The reaction above can be used to determine the %C2O42 in an unknown sample. A 1.018g of unknown solid is dissolved in water to make 100.00mL solution. A 10.00mL of this solution is titrated 0.0189MKMnO4 solution to its end point. If 13.50mL of KMnO4 solutions was needed to reach the endpoint, a) How many moles of KMnO4 were used to reach the endpoint? Answer: b) How may moles of MnO4 are there in 2a ? Answer: c) How many moles of C2O42 are needed to react with MnO4 in 2b ? Answer: d) How many grams of C2O42 are there in 2c ? This is the gof2C42 in 10.00mL aliquot (portion) of the unknown solution? Answer: This is the g of C2O42 in all of the unknown used. Answer: f) What is the %C2O42 in the unknown