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1 year ago

12

A chemistry student wants to learn how pressure and volume affect one another. They gather a sample of helium from a ballon and

measure the initial pressure at 4.5 atm and bounce at 12.1 liters. The students then increases the pressure to 15.2 atm
What’s P1
What’s P2
What’s V2

1 answer:

Ad libitum [116K]1 year ago

3 0

P1- 4.5 atm
P2- 15.2 atm
V2- 12.1 liters

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$\qquad$ ☀️ $\pink{\bf{ {Answer = \: \: 85.57g }}}$

Molar mass of $\bf Cu_2O$

$\qquad$ $\twoheadrightarrow\sf 63.546 \times 2 +16$

$\qquad$ $\pink{\twoheadrightarrow\bf 143.092 g}$

<u>As we know</u>–

1 mol = $\bf 6.02×10^{23}$ formula units

1 mol $\bf Cu_2O$ = 143.092 g = $\bf 6.02×10^{23}$ formula units

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$\bf 3.60×10^{23}$ formula units $\bf Cu_2O$ –

$\qquad$ $\sf :\implies \dfrac{143.092 \times3.60×10^{23 }}{6.02×10^{23}}$

$\qquad$ $\sf :\implies \dfrac{143.092 \times3.60×\cancel{10^{23 }}}{6.02×\cancel{10^{23}}}$

$\qquad$ $\pink{:\implies\bf 85.57 g}$

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