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ra1l [238]
3 years ago
15

Calculate the approximate volume of a 1.50 mol sample of gas at 15.0°C and a pressure of 3.75 atm

Chemistry
1 answer:
Papessa [141]3 years ago
8 0

Answer:

The answer is J (9.46 L)

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Atmospheric pressure arises due to the force exerted by the air above the Earth. At higher altitudes, the mass of the air above
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Answer:

less, decreases

Explanation:

When the pressure of an atmosphere occurs because of the force exerted so at the time of the higher altitudes, the air mass i.e. above the earth should be less as the air is attracted towards surface of an earth because of the gravity and air contains the mass that shows near the surface area so automatically the air density reduced due to which the mass also decreased

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3 years ago
How much energy is required to vaporize 2 kg of gold? Use the table below
Studentka2010 [4]

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48

Explanation:

8 0
3 years ago
A ball slowing down as it rolls across a carpet is an example of what
vlada-n [284]

A ball slowing down as it rolls across a carpet is an example of friction.

Friction is a force that slows down moving objects.

4 0
3 years ago
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A 1.11 g sample of caffeine, C8H10N4O2, burns in a constant-volume calorimeter that has a heat capacity of 7.85 kJ/K. The temper
VladimirAG [237]

Answer:

401135 kJ

Explanation:

From the balanced quation,

(q/n) = CΔE

Molar heat of combustion = 7.85kJk × (303.81-298.70)k

                                            = 7.85kj × 5.11

                                             = 40.1135kj

4 0
3 years ago
Based on the name, which substance is a covalent compound?
Sindrei [870]

Answer:

dinitrogen pentoxide

Explanation:

Based on the research, dinitrogen pentoxide is a chemical compound containing only nitrogen and oxygen which is both nonmetal. When two nonmetals or two negatively charged atoms try to form bonds, they always form covalent bonds. Hence, Dinitrogen Pentoxide is not ionic - it is covalent.

3 0
2 years ago
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