Which of these observations helped Rutherford determine that atoms have tiny, dense, positively charged nuclei?
1 answer:
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Answer: 12 L fluorine gas at STP can be collected from the decomposition of 90.7 g of
Explanation:
The balanced decomposition reaction is shown as
moles of
According to stoichiometry:
2 moles of gives = 3 moles of flourine gas
Thus 0.36 moles of gives =
of flourine gas
Using ideal gas equation :
P = pressure of gas = 1 atm ( at STP)
V = Volume of gas = ?
n = moles of gas = 0.54
R = gas constant = 0.0821 L atm/Kmol
T = temperature = 273 K ( at STP)
Putting the values we get :
Thus 12 L fluorine gas at STP can be collected from the decomposition of 90.7 g of