# Properties of gases(diffusion and pressure)

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Chem Cheat Sheet

Mol = M*L

m = mol/Kg

Strong Acids

HCL hydrochloric

H2SO4 sulfuric

HNO3 nitric

HBR hydrobromic

HI hydroiodic

HCLO4 perchloric

Cp H2O (l) = 4.184

Cp H2O (s) = 2.03

Cp H2O (g) = 1.998

ΔHfusion of H20 = 6.02

ΔHvap of H20 = 40.7

Real gases do have attractive forces at __________ temperatures:low

2.Ideal gases do not have attractive forces at _______ tempersatures:high

3.Real gases are not always far apart at ______temperatures:high

4.Ideal gases are far apart at _______ temperatures:low

5.An amorphous solid still has all the properties of a solid except for

its ___________ _______________:disorganized arrangement

6.ΔH fusion of H2O:6.02

7.ΔH vaporization of H2O:40.7

8.Equation for solving phase changes (Ex. If you had 100g of liquid

water at 100 C, how much energy would it take to boil the water if

the ΔH vap of water is 40.7kJ/mol):q=m*ΔH(fus/vap)

9.symbol for specific heat capacity:Cp

10.equation for solving with/for specific heat (Ex. How many joules

( J ) are required to heat 1000g of water from room temperature

(25C) to 100C?):q=mcΔT

11.intra is strong or weak:strong

12.inter is strong or weak:weak

13.At STP, P=:1atm

14.At STP, T=:273K

15.At STP, 1 mol =:22.4L

16.Dalton's Law of Partial Pressure:Pressure(total) = Pressure(a) + Pressure(b)

18.Graham's Law:as m↑, v↓ (inversely proportional)

19.Combined Gas Law:PV/T = PV/T (T must be K, everything else whatever)

20.Boyle's Law:PV=PV (inversely proportional - as P↑, V↓)

21.Charles' Law:V/T = V/T (directly proportional - as P↑, V↑)

22.Ga y-Lussac's Law:P/T = P/T (directly proportional - as P↑, V↑)

23.Ideal Gas Law:PV=nRT (R=8.314, P=kPa, V= L/dm^3, n=# of mol, T=K)

24.what does "like dissolves like" mean:polar + polar = solution

nonpolar + nonpolar = solution

polar + nonpolar = suspension

25.solution:homogeneous micture

26.solvent:substance that dissolves the solute

27.nonpolar molecules:e- shared equally (not shared equally in polar)