how many grams of NaC1 would you dissolve in water to make a 50 mM NaC1 solution with 500mL final volume?

How many oxygen atoms are there in 3.15 moles of hcl manganese (iv) oxide, mno2

He nucleus contains the cells genetic material in the form of dna. dna is organized into our chromosomes, which are made up of thousands of that determine our traits.

Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas.caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible.relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)