<u>Answer:</u> The molality of solution is 4.013 m
<u>Explanation:</u>
Molality is defined as the amount of solute expressed in the number of moles present per kilogram of solvent. The units of molarity are mol/kg.
The formula used to calculate molarity:
.....(1)
Given values:
Given mass of = 20.0 g
Molar mass of = 62.3 g/mol
Mass of solvent = 80.0 g
Putting values in equation 1, we get:
Hence, the molality of solution is 4.013 m
Answer:
2,93x10³atmL, 2,97x10⁵J
Explanation:
The work done in gas compression under constant pressure is:
W = -P×ΔV
<em>Where W is work done, P is pressure and </em>ΔV <em>is change in volume (Vol.f - Vol.i)</em>
Replacing:
W = -61.0atm×(51.0L - 99.0L)
W = 2928atmL = <em>2,93x10³atmL</em>
In Joules:
2928atmL × (101,325J / 1atmL) = 296680J ≡<em> 2,97x10⁵J</em>
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I hope it helps!
Gamma rays and x-rays are both part of the electromagnetic spectrum.
CaCl2(s) -> Ca^2+(aq)+Cl(aq)
Answer:
The study of reaction rates is called Chemical Kinetics.
Explanation:
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