Laboratory work often involves making dilutions of standard solutions. Dilution problems are not hard, but they can sure get you confused if you aren't careful. The following relation can often save you from pulling all of your hair out: C1V1= C2V2
Where,

V1 = initial volume
C1 = initial concentration
V2 final volume
C2= final concentration

A 0.6M solution of NaOH is diluted from 100 ml to 1liter. What is the new NAOH concentration?

What is the temperature of one mole of helium gas at stp?

If we compare and contrast electromagnetic waves with sound waves, all but one statement is true. that is a) sound waves require a medium to travel while electromagnetic waves do not. b) electromagnetic waves can travel through the vacuum of space while sound waves cannot. c) electromagnetic waves must have a medium in which to travel, but sound waves can travel anywhere. eliminate d) sound waves must bounce off of matter in order to travel while electromagnetic waves do not require matter to be present.

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)