In physical chemistry, there is an equation for the root mean square speed, or also known in abbreviated form of rms. The equation is:
rms = √(3RT/M)
where
R = 8.314 J/mol-K
T is the absolute temp
M is the molar mass; For H₂, M = 0.002 kg/mol
rms = √(3(8.314)(100+273)/(2))
<em>rms = 2,156.78 m/s</em>
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Answer: 0.9375 g
Explanation:
To calculate the number of moles for given molarity, we use the equation:
.....(1)
Molarity of
solution = 0.75 M
Volume of
solution = 25.0 mL = 0.025 L
Putting values in equation 1, we get:
According to stoichiometry :
2 moles of
require = 1 mole of
Thus 0.01875 moles of
will require=
of
Mass of
Thus 0.9375 g of
is required to react with 25.0 ml of 0.75 M HCl