Chemical Quantities and Calculations - All the question in the photograph please?

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1 Answer
Feb 14, 2017

Answer:

Sorry, but Socratic is not a Homework answering service. Here are the answers to the questions in your first image.

Explanation:

1 a) Clip 1

#"Volume" = 500 color(red)(cancel(color(black)("cm"^3))) × "1 dm"^3/(1000 color(red)(cancel(color(black)("cm"^3)))) = "0.5 dm"^3#

#"Moles" = 1 color(red)(cancel(color(black)("dm"^3)))× "2 mol"/(1 color(red)(cancel(color(black)("dm"^3)))) = "1 mol"#

1 b) Clip 2

#"Moles" = 2 color(red)(cancel(color(black)("L"))) × "0.5 mol"/(1 color(red)(cancel(color(black)("L")))) = "1 mol"#

2 a) Clip 3

#"Concentration" = "4 mol"/("2 dm"^3) = "2 mol/dm"^3#

2 b) Clip 4

#"Volume" = 200 color(red)(cancel(color(black)("cm"^3))) × ("1 dm"^3)/(1000 color(red)(cancel(color(black)("cm"^3)))) = "0.2 dm"^3#

#"Concentration" = "0.3 mol"/"0.2 dm"^3 = "1.5 mol/dm"^3#