Answer:
72.6% Error
Explanation:
% error = 

58.44 is the weight of NaCl
Given that the pressure, temperature and area of effusion is constant, the rate of effusion is inversely proportional to the square root of the molecular mass of the gas.
Mr Oxygen = 32
Mr Argon = 40
Effusion Oxygen = 1/√32
Effusion Argon = 1/√40
Effusion Oxygen / Effusion Argon = √(40) / √(32)
=√(40/32) = √(5/4) = 1.19
Thus, Oxygen will effuse 1.19 times faster than Argon. The second option is correct.
Answer:
In explanation.
Explanation:
In the file attached is the answer, couldn´t answer it here.
Answer:
c) 35 fl oz
Explanation:
Hello,
In this case, to compute the recommended amount of calcium that the teenager must drink, one performs the following relationship:

Solving for
, one gets:

Best regards.