PLEASE HELP If 9.30 g of potassium reacts with 2.50 g of O2 to form K2O , what is the limiting reagent and what is the theoretical yield of the reaction?

Hint: write the balanced reaction

K - 39.10 g/mol

O - 15.999 g/mol

ANSWER CHOICES:

A.) O2 is limiting, 11.2 g of K2O formed

B.) K is limiting, 14.7 g of K2O formed

C.) K is limiting, 11.2 g of K2O formed

D.) O2 is limiting, 14.7 g of K2O formed

E.) O2 is limiting, 19.2 g of K2O formed

C.) K is limiting, 11.2 g of formed

Explanation:

To calculate the number of moles, we use the equation:

Putting in the values we get:

According to stoichiometry :

4 moles of require 1 mole of

Thus 0.238 moles of will require=  of

Thus is the limiting reagent as it limits the formation of product and is the excess reagent.

As 4 moles of give = 2 moles of

Thus 0.238  moles of will give =  of

Mass of

Thus K is limiting and 11.2 g of will be formed.

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

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what does the table look like