Answer:
The pressure is equal to 0.775 atm.
Explanation:
Given that,
The atmospheric pressure on Stevens pass was measure to be 589mmHg.
We need to find the pressure in atm.
We know that,
1 standard atmosphere = 760 mm Hg
1 mm Hg = (1/760) standard atmosphere
589 mm Hg = (1/760)× 589 standard atmosphere
= 0.775 standard atmosphere
Hence, the pressure is equal to 0.775 atm.
The answer is 0.5010
Number of moles (n) is equal to the quotient of mass (m) and molar mass of a sample (Mr):
n = m/Mr
We have:
n = ?
m = 40.10 g
Mr = 80.0432 g/mol
n = 40.10 g : 80.0432 g/mol = 0.5010
<span>40.10 has 4 significant digits,
</span><span>80.0432 has 6 significant digits.
Since 4 is less than 6, we choose 4 </span>significant digits
Answer:
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