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Shalnov [3]
2 years ago
8

89.6 of H2O determine the number of moles

Chemistry
1 answer:
Katyanochek1 [597]2 years ago
5 0

Answer:

true ?

can you give me brainiest

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Elements in the periodic table are listed in order of their -----​
sattari [20]

Answer:

In numerical order left to right, they are arranged by the number of protons in the nucleus of a single atom of each element

4 0
3 years ago
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you fill a rigid steel container that has a volume of 20 L with nitrogen gas to a final pressure of 2 x 10^4 kpa at 23 Celsius.
garik1379 [7]

Answer:

4.549 kg.

Explanation:

  • We can use the general law of ideal gas: <em>PV = nRT.</em>

where, P is the pressure of the gas in atm (P = 2 x 10⁴ kPa/101.325 = 197.4 atm).

V is the volume of the gas in L (V = 20.0 L).

n is the no. of moles of the gas in mol (n = ??? mol).

R is the general gas constant (R = 0.0821 L.atm/mol.K),

T is the temperature of the gas in K (T = 23° C + 273 = 296 K).

<em>∴ n = PV/RT =</em> (197.4 atm)(20.0 L)/(0.0821 L.atm/mol.K)(296 K) = <em>162.5 mol.</em>

  • To find the mass of N₂ in the cylinder, we can use the relation:

<em>mass of N₂ = (no. of moles of N₂)*(molar mass of N₂) = </em>(162.5 mol)*(28.0 g/mol) = <em>4549 g = 4.549 kg.</em>

3 0
3 years ago
Can anyone help me please
Sergio039 [100]
The answer is 159.69 g/mol
6 0
2 years ago
The atomic mass unit is presently based on assigning an exact integral mass (in amu) to an isotope of ________.
MAVERICK [17]

The atomic mass unit is presently based on assigning an exact integral mass (in amu) to an isotope of carbon.

<h3>What is the atomic mass?</h3>

The atomic mass is a measurement used in physics and chemistry to denote the average atomic mass of a given element which is measured in the atomic mass unit or amu.

In conclusion, the atomic mass unit is presently based on assigning an exact integral mass (in amu) to an isotope of carbon.

Learn more about the atomic mass here:

brainly.com/question/3187640

#SPJ1

8 0
1 year ago
Describe the relationship between soil formation and climate ?
stich3 [128]
If there is more soil, there would be more plants, and thus, more organisms, depending on if the soil has enough nutrients to support an ecosystem. The way that this would affect the climate is that it would transpire moisture into the atmosphere, and also generate fresher air through photosynthesis.
7 0
3 years ago
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