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laiz [17]
3 years ago
14

A sample of an ideal gas has its volume doubled while its temperature remains constant. If the original pressure was 100 torr, w

hat is the new pressure?
Chemistry
1 answer:
Leviafan [203]3 years ago
6 0
PV = constant

V doubles, P will become half

New pressure = 100/2 = 50 torr
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4 years ago
A sample of 211 g of iron (III) bromide is reacted with
Alisiya [41]

FeBr₃ ⇒ limiting reactant

mol NaBr = 1.428

<h3>Further explanation</h3>

Reaction

2FeBr₃ + 3Na₂S → Fe₂S₃ + 6NaBr

Limiting reactant⇒ smaller ratio (mol divide by coefficient reaction)

  • FeBr₃

211 g of Iron (III) bromide(MW=295,56 g/mol), so mol FeBr₃ :

\tt n=\dfrac{mass}{MW}\\\\n=\dfrac{211}{295,56}\\\\n=0.714

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186 g of Sodium sulfide(MW=78,0452 g/mol), so mol Na₂S :

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mol NaBr based on limiting reactant (FeBr₃) :

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3 years ago
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