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4 years ago

How do I answer question 4

Chemistry

1 answer:

lidiya [134]4 years ago

3 0

One box is 120g.

mass of 126 boxes = 126*120 = 15120 g

(note: used an additional significant figure when first digit is a 1, so four significant figures)

Using the conversion 1 lb. = 453.6 g/lb

15120g = 15120 g / (453.6 g/lb) = 15120 g * (1/453.6) lb/g = 33.3 lbs. (3 significant figures)

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3 years ago

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lana [24]

Answer:

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b) option E C sp² + C p

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3 years ago

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qwelly [4]

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3 years ago

how many moles of gas does it take to occupy 120 liters at a pressure of 2.3 atmospheres and a temperature of 340 K?

dezoksy [38]

Data:

P (pressure) = 2.3 atm
V (volume) = 120 L
T (temperature) = 340 K
n (number of mols) = ?
R (Gas constant) = 0.082 (atm*L/mol*K)

Formula:

$p*V = n*R*T$

Solving:
$p*V = n*R*T$
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$276 = 27.88n$
$27.88n = 276$
$n = \frac{276}{27.88}$
$n = 9.89956...\to \boxed{\boxed{n\approx 9.90\:mols}}\end{array}}\qquad\quad\checkmark$

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4 years ago

What are the isomers of c3h6br2...

maks197457 [2]

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<span>CH3CHBrCH2Br 1,2-dibromopropane

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4 years ago