C is the answer because there is 2 ha for every oa
<u>Answer:</u> The percentage yield of
is 90.26%.
<u>Explanation:</u>
The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:
......(1)
Given mass of
= 80 g
Molar mass of
= 100 g/mol
Plugging values in equation 1:

For the given chemical equation:

By the stoichiometry of the reaction:
If 1 mole of
produces 1 mole of 
So, 0.8 moles of
will produce =
of 
Molar mass of
= 44 g/mol
Plugging values in equation 1:

The percent yield of a reaction is calculated by using an equation:
......(2)
Given values:
Actual value of
= 35.2 g
Theoretical value of
= 39 g
Plugging values in equation 2:

Hence, the percentage yield of
is 90.26%.
Hello there.
<span>Why are carbon and nitrogen essential for survival to all living organisms?
</span>
<span>They are needed to release the energy stored in food.
</span>Therefore, The correct answer would be Option B.
Answer:
Number mole of calcium (Ca) = 1.4942 x 10⁻⁷ (Approx.)
Explanation:
Given:
Number of atom in (Ca) = 9 x 10¹⁶
Find:
Number mole of calcium (Ca)
Computation:
Number mole of calcium (Ca) = Number of atom in (Ca) / Avogadro's number
Number mole of calcium (Ca) = (9 x 10¹⁶) / (6.023 x 10²³)
Number mole of calcium (Ca) = 1.4942 x 10⁻⁷ (Approx.)
Answer:
the equation for cylinders is V = (pi)r2h
none of these are even close but i can do a little more research
sorry if this one wasnt as much help