Answer:
70g Na
Explanation:
The sodium reacts with water as follows:
2Na + 2H2O → 2NaOH + H2
<em>Where 2 moles of Na produce 1 mole of H2.</em>
To solve this question we must find the moles of H2. With the balanced equation we can find the moles of Na and its mass as follows:
<em>Moles H2:</em>
PV = nRT; n = PV/RT
<em>Where P is pressure = 1atm,</em>
<em>V is volume = 34L,</em>
<em>R is gas constant = 0.082atmL/molK</em>
<em>T is absolute temperature = 273.15K = 0°C</em>
Replacing:
n = 1atm*34L/0.082atmL/molK*273.15K
n = 1.52 moles H2
<em>Moles Na:</em>
1.52 moles H2 * (2mol Na / 1mol H2) = 3.04 moles Na
<em>Mass Na-Molar mass: 22.99g/mol-</em>
3.04 moles Na * (22.99g / mol) =
<h3>70g Na </h3>
Answer:
As nouns the difference between impression and imprint
is that impression is the indentation or depression made by the pressure of one object on or into another while imprint is an impression; the mark left behind by printing something.
The answer is A …a …a … I think
