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Sergio039 [100]
3 years ago
15

According to the kinetic molecular theory, the particles of an ideal gas

Chemistry
1 answer:
Vera_Pavlovna [14]3 years ago
7 0
A have no potential energy
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How many kilograms are in 4 moles of Na2CO3?
castortr0y [4]
First you need to find the amount of mass of Na2CO3 in one moles
(Use periodic chart)

Na= 22.99 x 2 = 45.98
C = 12.01
O = 16.00 x 4 = 64.00

Add the molar masses together to get 121.99

To find how many grams are in 4 moles, times 121.99 by 4
This gives you 487.96

But the questions asks for the answer to be in kilograms nor grams, to change into kilograms divide by 1000
This gets you the answer: 0.49 kg

6 0
3 years ago
How many moles of tungsten carbide will be produced if plenty of tungsten is reacted with 1.25 moles of carbon?
Tanya [424]

Answer:

1.25 moles of tungsten carbide

Explanation:

Tungsten carbide, WC, is a substance that is produced prom carbon and tungsten as follows:

W + C → WC

Based on the reaction, 1 mole of Carbon produce 1 mole of tungsten carbide. That means if 1.25 moles of carbon are added in excess of tungsten, the moles of tungsten carbide produced are:

<h3>1.25 moles of tungsten carbide</h3>
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3 years ago
Why do scientists study the natural world to find solutions to human problems?
Vlad1618 [11]

5e earth holds many answers to things we don’t know about.

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3 years ago
Calculate thr number of photons having a wavelength of 10.0 μm required to produce 1.0 kJ of energy.
ddd [48]
Ok so first you need to figure out the energy of ONE photon with that wavelength. Using E=hc/lambda, you get E= 1.99 * 10^-20 J/photon. Now, how many photons do you need to add up to get to one kilojoule=1000 joules? 1000J / (1.99 * 10^-20 J/photon) = approximately 5 * 10^22 photons hope this helps
4 0
2 years ago
Read 2 more answers
What is the volume of 5.00 mole of an unknown gas at STP
ivann1987 [24]

Answer:

What is the volume of gas at 2.00 atm and 200.0 K if its original volume was. 200.0 L at STP  How many moles of nitrogen gas will occupy a volume of 150 L at STP? n=pr 11.00atm) What is the mass of 5.00 L of NO2 gas at STP? PV = nRT.

Explanation:

5 0
3 years ago
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