Physical Chemistry Answers

how to solve quantum mechanics eqn schrondier eqn..

1. Suppose a gas expands by 500ml aganist a pressure of 1.20 atm and no heat is exchanged with the surrounding during the expansion. How much work is done in the expansion

You have been introduced to terms like Bravais lattice translations and

Wycko↵ positions. Write down all such possible translations. Are they

true only for cube or are they true for all the seven crystal systems?

Explain.

Consider two FCC structures whose Wycko↵ positions are given by (a.)

(0,0,0) for one of these, and by (b.) (0,0,0), ( 1/4,1/4,1/4) for the other. At all

the possible positions, same type of atoms are decorated/placed. Can

you give examples (one each) for such structures? Draw them. How

many number of lattice points will one see in both these structures?

How many number of atoms per lattice point do you have in them?

A 25 mL syringe is used to measure both 10 mL of a solution and 20 mL of a solution. Which measurement, if any, has the biggest percentage error?

1. Measurement of 10 mL.
2. Measurement of 20 mL.
3. Both have the same percentage error, as it is the same syringe.

When dividing 7.1 by 6.346, the result on the calculator is 1.118815. Round the answer to the appropriate precision based on the precision of the numbers in the division column.

35.6 ± 0.4 mL of 0.600 ± 0.02 M HCl was required to neutralize 35 ± 0.3 mL of a solution of NaOH.

Calculate the error in the concentration of NaOH in M from the combined errors in the data.