he chemical method of analysis in determination of the blood alcohol content (%BAC) is: K2Cr2O7 + H2SO4 + C2H5OH → Cr2(SO4)3 + K
1 answer:
Explanation:
Stoichiometric coefficients : these are the numeral which written before the chemical symbol of the chemical substance in a balanced chemical reaction.
We are given with the chemical equation which is used in blood alcohol content.The balanced chemical equation will be given as:
The stoichiometric coefficient of potassium dichromate = 2
The stoichiometric coefficient of sulfuric acid= 8
The stoichiometric coefficient of ethanol= 3
The stoichiometric coefficient of potassium sulfate = 2
The stoichiometric coefficient of chromium(III) sulfate = 2
The stoichiometric coefficient of acetic acid = 3
The stoichiometric coefficient of water = 11
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Answer:
0.018 J
Explanation:
The work done to bring the charge from infinity to point P is equal to the change in electric potential energy of the charge - so it is given by
where
is the magnitude of the charge
is the potential difference between point P and infinity
Substituting into the equation, we find
Answer:
8.67807 N
34.7123 N
Explanation:
m = Mass of shark = 92 kg
= Density of seawater = 1030 kg/m³
= Density of freshwater = 1000 kg/m³
= Density of shark = 1040 kg/m³
g = Acceleration due to gravity = 9.81 m/s²
Net force on the fin is (seawater)
The lift force required in seawater is 8.67807 N
Net force on the fin is (freshwater)
The lift force required in a river is 34.7123 N