Bruce left some butter out in his kitchen. Bright sunlight came in through the window and melted the butter. Heat energy from th
e sun is called A) conduction. B) convection. C) insulation. D) radiation.
2 answers:
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<u>Answer:</u> The number of moles of strontium bicarbonate is
<u>Explanation:</u>
Formula units are defined as lowest whole number ratio of ions in an ionic compound. It is calculate by multiplying the number of moles by Avogadro's number which is
We are given:
Number of formula units of
As, number of formula units are contained in 1 mole of a substance.
So, number of formula units will be contained in =
of strontium bicarbonate.
Hence, the number of moles of strontium bicarbonate is
In the problem, we are tasked to solved for the amount of carbon (C) in the acetone having a molecular formula of C 3 H 6 O. We need to find first the molecular weight if Carbon (C), Hydrogen (H), Oxygen (O).
Molecular Weight:
C=12 g/mol
H=1 g/mol
O=16 g/mol
To calculate for the percent by mass of acetone, we assume 1 mol of acetone.
%C=
%C=62.07%
Therefore, the percent by mass of carbon in acetone is 62.07%
Molecular Weight:
C=12 g/mol
H=1 g/mol
O=16 g/mol
To calculate for the percent by mass of acetone, we assume 1 mol of acetone.
%C=
%C=62.07%
Therefore, the percent by mass of carbon in acetone is 62.07%