Answer:
H₂: 0.48, N₂: 0.43; Ar: 0.09
Explanation:
First of all, sum all the pressures to know the total pressure in the mixture.
434 Torr + 389.9 Torr + 77.9 Torr = 901.8 Torr
Mole fraction = Pressure gas / Total Pressure
Mole Fraction H₂: 434 Torr /901.8 Torr = 0.48
Mole Fraction N₂: 389.9 /901.8 Torr =0.43
Mole Fraction Ar: 77.9 /901.8 Torr = 0.09
Remember: <u>SUM OF MOLE FRACTION = 1</u>
True. NH4CL is an ionic compound, and salts are strong electrolytes.
Answer:
%age Yield = 87.16 %
Explanation:
Percentage yield is the ratio of actual yield to theoretical yield. The actual yield the amount of product obtained after the experiment and the theoretical yield is the amount of ideal product obtained on paper calculations. The actual yield is almost always less than the theoretical yield due to chemical reaction problems, or handling problems.
Given Data:
Theoretical Yield = 25.31 g
Actual Yield = 22.06 g
%age Yield = ?
Formula Used:
%age Yield = (Actual Yield ÷ Theoretical Yield) × 100
Putting Values,
%age Yield = (22.06 g ÷ 25.31 g) × 100
%age Yield = 87.16 %
Proteins is a amino acids are monomers that join together in complex macromolecules.
Answer is B.
Hope it helped you.
-Charlie
Answer:
pH = 10.4
Explanation:
pH = -log [H⁺] = -log(4.1 x 10⁻¹¹) = -(-10.4) = 10.4