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NeX [460]
3 years ago
7

78.2 divided by 32cm³​

Chemistry
2 answers:
allsm [11]3 years ago
7 0
The answer i got is 2.44375cm^3
klio [65]3 years ago
6 0

Answer:

2.44375

rounded=2.44

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shusha [124]
Precipitation hope this helped you 
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The volume of a Goodyear Blimp is 2.5x10^7 L, which is occupied by 1.7x10^6 mol of helium. What is the internal pressure of the
attashe74 [19]

Answer:

1.7 bar

Explanation:

We can use the <em>Ideal Gas Law</em> to calculate the individual gas pressure.

pV = nRT     Divide both sides by V

 p = (nRT)/V

Data:   n = 1.7 × 10⁶ mol

R = 0.083 14 bar·L·K⁻¹mol⁻¹

T = 22 °C

V = 2.5 × 10⁷ L

Calculations:

(a) <em>Change the temperature to kelvins </em>

T = (22 + 273.15) K

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(b) Calculate the pressure

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3 years ago
What is the density of motor oil in g/mL if 1.25 quart (qt) weighs 2.25 pounds (lb)?
Doss [256]

Answer:

0.86 g/mL

Explanation:

In order to solve the problem, you have to know the formula for "Density." Density refers to<em> </em><em>"mass per unit volume." </em><em>It's formula is:</em>

  • <em>Density (ρ) = </em>\frac{mass}{Volume}<em />

Next, we have to convert the units of measurement in accordance to what is being asked in the problem. It is asking for "g/mL," which means we have to convert 1.25 quarts<em> (qt.) </em>to mL and 2.25 pounds<em> (lbs.)</em> to grams.

Let's solve.

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1.25 qt. x \frac{946.35 mL}{1 qt.} =<em> 1,182.94 mL</em>

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2.25 pounds x \frac{453.592 grams}{1 pound} = <em>1,020.58 grams</em>

Now that we converted them to their appropriate units of measurement, we can now solve for density.

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  • <em>ρ = </em>\frac{1,020.58 grams}{1,182.94 mL}<em />
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<em>The density of the motor oil is 0.86 g/mL</em>

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3 years ago
Imagine a large compass extending out from center of the earth it set messured 90° One point touches the equator where does the
alexandr402 [8]
The exact opposite end of the earth or 180degrees
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Gold is used for jewelry because it is malleable. This means it can be easily molded into different shapes. What is this an exam
anastassius [24]

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