How many moles are in 29.5 grams of Ax?
1 answer:
The number of moles present in 29.5 grams of argon is 0.74 mole.
The atomic mass of argon is given as;
Ar = 39.95 g/mole
The number of moles present in 29.5 grams of argon is calculated as follows;
39.95 g ------------------------------- 1 mole
29.5 g ------------------------------ ?
Thus, the number of moles present in 29.5 grams of argon is 0.74 mole.
<em>"Your question seems to be missing the correct symbol for the element" </em>
Argon = Ar
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<u>Answer:</u> The mass percent of alcohol in blood is 0.183 %
<u>Explanation:</u>
To calculate the moles for given molarity, we use the equation:
Molarity of solution = 0.05961 M
Volume of solution = 35.46 mL = 0.03546 L (Conversion factor: 1 L = 1000 mL)
Putting values in above equation, we get:
The given chemical reaction follows:
By Stoichiometry of the reaction:
2 moles of dichromate ions react with 1 mole of ethanol.
So, of dichromate ions will react with =
- To calculate the number of moles, we use the equation:
Moles of ethanol =
Molar mass of ethanol = 46.07 g/mol
Putting values in above equation, we get:
- To calculate the mass percent of ethanol in blood, we use the equation:
Mass of blood plasma = 26.60 g
Mass of ethanol = 0.0488 g
Putting values in above equation, we get:
Hence, the mass percent of alcohol in blood is 0.183 %