Answer:
C. 33.6L
Explanation:
Based on the reaction, 2 moles of HCl reacts producing 1 mole of hydrogen.
To solve this question we must find the moles of hydrogen produced using the reaction. Then, with combined gas law (PV = nRT) we can find the volume produced:
<em>Moles H2:</em>
3.00 moles HCl * (1mol H2 / 2mol HCl) = 1.50 moles H2 are produced
<em>Volume:</em>
PV = nRT
V = nRT / P
<em>Where P is pressure = 1atm at STP</em>
<em>V is volume = Our incognite</em>
<em>n are moles of the gas = 1.50 moles</em>
<em>R is gas constant = 0.082atmL/molK</em>
<em>T is absolute temperature = 273.15K</em>
<em />
V = nRT / P
V = 1.50mol*0.082atmL/molK*273.15K / 1atm
V = 33.6L
<h3>C. 33.6L</h3>
Hello,
Answer: the second one
Explanation:
Preventing and cleaning up chemical pills and one one gets hurt :)
false is the answer to this question.
Molarity (M) is the numer of moles per liter (mol/L)
Both are already given:
mol = 4.00 moles of KBr
L = 3.00 L H2O (water)
Plug them both into the equation:
<u>4.00 mol KBr </u> = 1.33 M KBr (1.33 because of sig figs)<u>
</u>3.00 L H2O <u>
</u>
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