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frozen [14]
3 years ago
10

Solve the following problem with the correct number of significant figures: 4.192 + 913.30 + 4.71. Show your work in detail.

Chemistry
1 answer:
olganol [36]3 years ago
5 0

Answer:

922.202

Explanation:

4.192+ 913.30+ 4.71 complying with sig figs would be solved like this:

004.192+ 913.300+ 004.710= 922.202

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The volume occupied by 1.5 mole of gas at 35°C and 2.0 atmosphere of pressure is blank liters
Aneli [31]

Answer: 18.97 L

Explanation:

This can be solved by the Ideal Gas equation:

P.V=n.R.T  

Where:  

P=2 atm is the pressure of the gas  

V is the volume of the gas  

n=1.5 mole the number of moles of gas  

R=0.0821\frac{L.atm}{mol.K} is the gas constant  

T=35\°C+273.15=308.15 K is the absolute temperature of the gas in Kelvin

Finding V:

V=\frac{nRT}{P}

V=\frac{(1.5 mole)(0.0821\frac{L.atm}{mol.K})(308.15 K)}{2 atm}

V=18.97 L

Therefore:

The volume occupied by 1.5 mole of gas at 35°C and 2.0 atmosphere of pressure is <u>18.97</u> liters

7 0
4 years ago
Classical name for chromium(III) phosphate
prohojiy [21]
If by classical you mean formula name it is CrPO4<span>.</span>
8 0
4 years ago
Cuales son las caracteristicas de el livermorio
katen-ka-za [31]

Answer:

Livermorium is a radioactive, artificially produced element about which little is known. It is expected to be a solid and classified as a metal. It is a member of the chalcogen group. Livermorium has four isotopes with known half-lives, all of which decay through alpha decay

5 0
3 years ago
What volume of water, in mL, is needed to dissolve 1.3×103 mg of carbon dioxide gas when the partial pressure of carbon dioxide
ivolga24 [154]

Answer:

V = 0.2714 mL

Explanation:

Henry's Law:

  • Pi = Ci*Kh

∴ Kh CO2 = 0.034 M/atm ....The Henry's constant

∴ Partial pressure: P CO2 = 3.7 atm

⇒ <em>C</em> CO2 = P CO2 / Kh

⇒ <em>C</em> CO2 = 3.7 atm / 0.034 M/atm = 108.823 M (mol/L)

∴ molar mass CO2 = 44.01 g/mol

⇒ mol CO2 = (1.3 E3 mg)(g/1000 mg)(mol/44.01 g) = 0.03 mol CO2

volumen solution:

⇒ V sln = (0.03 mol)(L/108.823 mol) = 2.714 E-4 L

⇒ V sln = 0.2714 mL

4 0
4 years ago
A device used to measure the amount of heat released or absorbed during a chemical process is a
qwelly [4]
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