Question

Hich formula can be used to calculate the molar mass of hydrogen peroxide (H2O2)? (5 points)

Select one:
a.molar mass of H + molar mass of O
b.2 x molar mass of H + molar mass of O
c.molar mass of H + 2 x molar mass of O Incorrect
d.2 x molar mass of H + 2 x molar mass of O



Which of the following statements best defines the actual yield of a reaction? (5 points)

Select one:
a.The amount of product measured after a reaction
b.The ratio of measured yield over theoretical yield
c.The maximum amount of product that can be obtained Incorrect
d.The ratio of measured yield over stoichiometric yield

Answer 1

which formula can be used to calculate the molar mass of hydrogen peroxide (H2O2)?

» d.2 x molar mass of H + 2 x molar mass of O

Step-by-step explanation:

Since we've two hydrogen atoms and two oxygen atoms, we multiply each mass by 2

`= (2 * hydrogen) + (2 * oxygen) \\ = (2 * 1) + (2 * 16) \\ = 2 + 32 \\ = 34 \: g`

Which of the following statements best defines the actual yield of a reaction?

» d.The ratio of measured yield over stoichiometric yield