4. Predict which of the following are true or false. Write \"T\" or \"F\". (15 P

Question

4. Predict which of the following are true or false. Write "T" or "F". (15 Points) a) For a fixed amount of a gas at constant temperature, if volume increases, pressure decreases b) An ionic solute is more likely to dissolve in a non polar solvent than a polar solvent c) A net ionic equation shows only those species which take part in a chemical reaction, d) Kelvin temperature of a gas is 2730 larger than Celsius temperature e) A pressure of 0.836 atmosphere is equal to 635 mmHg_ f) The volume occupied by 28.0 grams of nitrogen gas at STP is 22.4L g) The volume of a gas and number of particles is directly proportional h) Salt water is an example of a weak electrolyte solution i) The compound HCIO, is a strong acid, and HCIO2 is a weak acid j) A solution can contain only one solvent _

Explanation / Answer

a)

true, accoring to PV = K law

b)

false, ionic has +/- charges, which requires a polar solvent ( +/-)

c)

true, only reacting species, ignores spectator ions

d)

true, since we must add 273

e)

635 mm Hg / 760 mm Hg * atm = 0.835 atm

this is true

f)

1 mol of N2 = 28 g

1 mol ofN2 = 22.4 L

then, this is TRUE

g)

true, since avogrados law

V/n = K

h)

false, salt is strong electrolyte

i)

true, since O allows H+ dissociation easier

j)

True, all other will be solute

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