Amount of substance

Descrição

AS Chem (Chem 1) Quiz sobre Amount of substance, criado por Megan McLean em 14-05-2014.
Megan McLean
Quiz por Megan McLean, atualizado more than 1 year ago
Megan McLean
Criado por Megan McLean mais de 10 anos atrás
25
2

Resumo de Recurso

Questão 1

Questão
The relative atomic mass can be defined by......
Responda
  • Average mass of one atom of an element x 12 ------------------------------------------------------------------- Mass of an atom of C12
  • Average mass of one atom of an element x 12 ------------------------------------------------------------------- Mass of 1/12th of an atom of C12

Questão 2

Questão
Number of moles.....
Responda
  • m/mr
  • mr/m

Questão 3

Questão
Ideal gas equation is.....
Responda
  • PV/T
  • PV=nRT

Questão 4

Questão
How do you calculate the molecular formula?
Responda
  • Relative mass of empirical formula ----------------------------------------------------- Relative molecular mass
  • Relative molecular mass ------------------------------------------------------ Relative mass of empirical formula

Questão 5

Questão
Concentration = ...........
Responda
  • Volume in dm --------------------------- Number of moles
  • Number of moles ---------------------------- Volume in dm

Questão 6

Questão
Number of moles in solution....
Responda
  • M x 1000 ------------- V
  • M x V ---------- 1000

Questão 7

Questão
Atom Economy (%)......
Responda
  • Mass of desired product ------------------------------------ x1000 Total mass of product
  • Mass of desired product ---------------------------------- x100 Total mass of product

Questão 8

Questão
Yield of a chemical reaction......
Responda
  • The number of moles or grams of a specified product -------------------------------------------------------------------------------- x 100 Theoretical maximum number of moles or grams of the product
  • The number of moles or grams of a specified product -------------------------------------------------------------------------------- x 1000 Theoretical maximum number of moles or grams of the product

Questão 9

Questão
Yield of a chemical reaction......
Responda
  • The number of moles or grams of a specified product -------------------------------------------------------------------------------- x 100 Theoretical maximum number of moles or grams of the product
  • The number of moles or grams of a specified product -------------------------------------------------------------------------------- x 1000 Theoretical maximum number of moles or grams of the product

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