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Effectus [21]
3 years ago
13

Instrument used to measure atmospheric pressure

Chemistry
1 answer:
lisov135 [29]3 years ago
7 0

Answer: barometer

Explanation:

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Determine the pressure change when a constant volume of gas at 1.00 atm is heated from 20C to 30C
Delicious77 [7]
P1=1.0atm
P2=?
T1=20c=293k
T2=30c=303k
P1/T1=P2/T2
(P1/T1)T2
(1.00atm/293k)303k=1.03k
7 0
3 years ago
Ok so N2+O2=2NO and my delta h is 180.5 kJ I need to know. If I react 10 g of nitrous gas with excess oxygen how many grams of N
Westkost [7]

Answer:

21.6 grams

Explanation:

  • N₂ + O₂ → 2NO

First we <u>convert 10 g of N₂ into moles</u>, using its <em>molar mass</em>:

  • 10 g ÷ 28 g/mol = 0.36 mol N₂

Then we <u>convert 0.36 moles of N₂ into moles of NO</u>, using the <em>stoichiometric coefficients of the balanced reaction</em>:

  • 0.36 mol N₂ * \frac{2molNO}{1molN_2} = 0.72 mol NO

Finally we <u>convert 0.72 NO moles into grams</u>, using its <em>molar mass</em>:

  • 0.72 mol NO * 30 g/mol = 21.6 g
4 0
3 years ago
During which time interval was the motion faster?<br><br><br> I NEED HELP
grigory [225]
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7 0
3 years ago
Read 2 more answers
Which is true for every atom of an element?
antoniya [11.8K]

C. It has mass and volume

Explanation:

Every atom of an element has mass and volume. Mass is the amount of substance it contains this is usually a function of their subatomic particles.

The bulk of the mass of an atom is concentrated in the nucleus where we have protons and neutrons. Electrons do not really add much to the mass of an atom.

Atoms also have specific volume.

  • The reason for our selection is that atoms are the smallest particle of matter.
  • Matter is anything that has weight and occupies space.
  • Since it is matter, it must have specific weight and volume

learn more:

Matter brainly.com/question/8839455

#learnwithBrainly

6 0
3 years ago
How much does 200 gallons of water weigh?
Jlenok [28]
To be able to obtain the mass of the given volume of a substance, we need data on its density since it is the mass per volume of a substance. We multiply this value to the given volume. For water, it is approximately <span>10.02 lb/gal.

Mass of water = 200 gal ( 10.02 lb/gal ) = 200.4 lb

Hope this helped.</span>
3 0
3 years ago
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