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Vedmedyk [2.9K]
3 years ago
6

What is the mass of 12,000cm3 of N2? Explain your answer?

Chemistry
1 answer:
Damm [24]3 years ago
8 0

Answer:

14g

Explanation:

assuming that N2 is a gas, use the gas formula ( mole = volume/24) to find the number of moles

then once you have found the moles (0.5 mol) use the (mole = mass/mr) formula to find the mass

so, 0.5 x 28 = 14g

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Express the frequency in inverse seconds. n=5-->n=1
Natalija [7]

The frequencies expressed in inverse seconds are 5 s⁻¹  and 1 s⁻¹.

<h3>What is frequency?</h3>

Frequency is the number of complete cycles in a second made by a wave.

F = 1/T

F = n/t

<h3>When n = 5</h3>

F = 5/s =  5 s⁻¹ = 5Hz

<h3>When n = 1</h3>

F = 1/s =  1 s⁻¹ = 1Hz

Learn more about frequency here: brainly.com/question/254161

#SPJ1

4 0
2 years ago
4. The woman's auxiliary at the Fire Company need to make 250 one pound pie crusts for a fund raiser. If
Andre45 [30]

Answer:

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Explanation:

7 0
3 years ago
1. When frequency increases energy:
liraira [26]
B

When frequency increases, as does the energy, but wavelength decreases. It also works vise versa; if wavelength were to increase, its frequency and energy will decrease.
8 0
3 years ago
Liquid in a graduated cylinder has a volume of 70 mL. You put a small solid ball into the cylinder, and the height of the liquid
emmasim [6.3K]
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8 0
3 years ago
A eudiometer contains a 65.0 ml sample of a gas collected
SCORPION-xisa [38]

Answer:

53.1 mL

Explanation:

Let's assume an ideal gas, and at the Standard Temperature and Pressure are equal to 273 K and 101.325 kPa.

For the ideal gas law:

P1*V1/T1 = P2*V2/T2

Where P is the pressure, V is the volume, T is temperature, 1 is the initial state and 2 the final state.

At the eudiometer, there is a mixture between the gas and the water vapor, thus, the total pressure is the sum of the partial pressure of the components. The pressure of the gas is:

P1 = 92.5 - 2.8 = 89.7 kPa

T1 = 23°C + 273 = 296 K

89.7*65/296 = 101.325*V2/273

101.325V2 = 5377.45

V2 = 53.1 mL

6 0
4 years ago
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