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BigorU [14]
3 years ago
6

Bismuth has a density of 9.80 g/cm^ 3 . What is the of 3.74 cm ^ 3 of Bi?

Chemistry
1 answer:
Ierofanga [76]3 years ago
3 0

Explanation:

density = mass/ volume

mass= density × volume

mass= 9.80× 3.74

mass= 36.652 g

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A container of hydrogen at 172 kPa was decreased to 85.0 kPa producing a new volume of 3L. What was the original volume?
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Answer:

<h2>The answer is 1.48 L</h2>

Explanation:

In order to find the original volume we use the same for Boyle's law which is

P_1V_1 = P_2V_2

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the original volume

V_1 =  \frac{P_2V_2}{P_1}  \\

From the question

P1 = 172 kPa = 172000 Pa

P2 = 85 kPa = 85000 Pa

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We have

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<h3>1.48 L</h3>

Hope this helps you

4 0
3 years ago
The rate constant for this first‑order reaction is
jenyasd209 [6]

Answer:

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