1.09 moles of tin (Sn)
Explanation:
We have the following chemical reaction where tin chloride (SnCl₂) reacts with sodium (Na) to produce tin (Sn) and sodium chloride (NaCl):
SnCl₄ + 4 Na → Sn + 4 NaCl
Taking in account the chemical reaction, we devise the following reasoning:
if 1 mole of SnCl₂ will react with 4 moles of Na
then 2.34 moles of SnCl₂ will react with X moles of Na
X = (2.34 × 4) / 1 = 9.36 moles of Na
So, 2.34 moles of SnCl₂ will react with 9.36 moles of Na but we only have 4.36 moles of Na available. The limiting reactant will be Na. Knowing this we devise the following reasoning:
if 4 moles of Na produces 1 mole of Sn
then 4.36 moles of Na produces Y moles of Sn
Y = (4.36 × 1) / 4 = 1.09 moles of Sn
Learn more about:
limiting reactant
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Balanced equation
2Pb(NO₃)₂⇒2PbO+4NO₂+O₂
<h3>Further explanation</h3>
Given
Reaction
Pb(NO₃)₂⇒PbO+NO₂+O₂
Required
Balanced equation
Solution
Pb(NO₃)₂⇒aPbO+bNO₂+cO₂
Pb, left=1, right=a⇒a=1
N, left=2, right=b⇒b=2
O, left=6, right=a+2b+2c⇒6=1+2.2+2c⇒6=5+2c⇒1=2c⇒c=1/2
The reaction becomes :
Pb(NO₃)₂⇒PbO+2NO₂+1/2O₂ x2
<em>2Pb(NO₃)₂⇒2PbO+4NO₂+O₂</em>
Yes it will need every point to bury it right for 5 points
The larger the kinetic energy of the vehicle, the larger the amount of energy will be needed to stop the vehicle, meaning that faster vehicles have a larger stopping distance
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