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Thepotemich [5.8K]
4 years ago
15

Guys, please help me and tell me how you found the answer!

Chemistry
1 answer:
sergij07 [2.7K]4 years ago
3 0

Answer:

The First one is: 0.563atm

The second one is: 1.692atm

Hope this helps!

Explanation: Look at Photo Attached

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A block of substance has a width of 3.8 cm, a length of 8.2 cm, and height of 7 cm . Its mass is 0.68 kg. Calculate the density
satela [25.4K]

Answer:

d = 3.11 g /cm³

Explanation:

Volume -

The volume of a cuboidal object can be calculated by multiplying the length , width and height ,

Hence , Volume ( V ) = l * w * h ,

From the question ,

l = 8.2 cm

w = 3.8 cm

h = 7 cm

Hence, the volume is ,

V = l * w * h

V = 8.2 cm * 3.8 cm * 7 cm

V = 218.12 cm³

Density -

Density of a substance is given as the mass divided by the volume ,

Hence,

d = m / V

From the question,

m = 0.68 kg

since ,

1 kg = 1000g

m = 0.68 * 1000 = 680 g

V = 218.12 cm³ ( calculated above )

Hence , the value of density can be calculated by using the above equation,

d = m / V

d = 680 g / 218.12 cm³

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At a temperature of 393 K, the pressure of a sample of nitrogen is 1.07 atm. What will the pressure be at a temperature of 478 K
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