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Vanyuwa [196]
2 years ago
14

Define the concept national building​

Physics
1 answer:
natali 33 [55]2 years ago
3 0
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What volume of h2 gas (in l), measured at 756 mmhg and 90 ∘c, is required to synthesize 23.0 g ch3oh?
Naddika [18.5K]

First let us calculate for the moles of CH3OH formed:

moles CH3OH = 23 g / (32 g / mol) = 0.71875 mol

We see that there are 2 moles of H2 per mole of CH3OH, so:

moles H2 = 0.71875 mol * 2 = 1.4375 mol

 

Assuming ideal gas behaviour, we use the formula:

PV = nRT

V = nRT / P

V = 1.4375 mol * (62.36367 L mmHg / mol K) * (90 + 237.15 K) / 756 mm Hg

<span>V = 43.06 Liters</span>

6 0
3 years ago
Visible light waves do not diffract as well as radio waves because
Anvisha [2.4K]

they have more energy than radio waves.

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because the wavelength of the light waves are too small

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2 years ago
A group of students conduct an experiment with a block of wood sliding down an incline. They find that the final energy of the b
77julia77 [94]

Answer:

1) 51 m

2) Some energy was transformed to other forms. (This question)

3) 3.24 J

4) 45 J

5) 1020 J

Explanation:

100%

8 0
2 years ago
To date, Saturn is known to have 13 rings made from which of the following?
ankoles [38]

I think the answer is Dust. Moons and stars definitely don't seem likely and dark particles, I am not even sure what those are. But I have seen rings on other planets before. Hope this helps. :)

5 0
2 years ago
Read 2 more answers
What distance does a police car travel if it is going 3.0 m/s for 20 seconds
Vladimir79 [104]

Answer:

60 meters

Explanation:

If you are going 3 meters in a second, and you are traveling for 20 seconds, you have to multiply

3meters/second*20seconds

cross out the seconds and you have

3 meters*20

60 meters

6 0
2 years ago
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