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Test

Amount of substance

Megan McLean 9 preguntas

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Preguntas del test (9)

  1. 1The relative atomic mass can be defined by......
    1. AAverage mass of one atom of an element x 12
      -------------------------------------------------------------------
      Mass of an atom of C12
    2. BAverage mass of one atom of an element x 12
      -------------------------------------------------------------------
      Mass of 1/12th of an atom of C12
  2. 2Number of moles.....
    1. Am/mr
    2. Bmr/m
  3. 3Ideal gas equation is.....
    1. APV/T
    2. BPV=nRT
  4. 4How do you calculate the molecular formula?
    1. ARelative mass of empirical formula
      -----------------------------------------------------
      Relative molecular mass
    2. B Relative molecular mass
      ------------------------------------------------------
      Relative mass of empirical formula
  5. 5Concentration = ...........
    1. AVolume in dm
      ---------------------------
      Number of moles
    2. BNumber of moles
      ----------------------------
      Volume in dm
  6. 6Number of moles in solution....
    1. AM x 1000
      -------------
      V
    2. BM x V
      ----------
      1000
  7. 7Atom Economy (%)......
    1. AMass of desired product
      ------------------------------------ x1000
      Total mass of product
    2. BMass of desired product
      ---------------------------------- x100
      Total mass of product
  8. 8Yield of a chemical reaction......
    1. AThe number of moles or grams of a specified product
      -------------------------------------------------------------------------------- x 100
      Theoretical maximum number of moles or grams of
      the product
    2. BThe number of moles or grams of a specified product
      -------------------------------------------------------------------------------- x 1000
      Theoretical maximum number of moles or grams of
      the product
  9. 9Yield of a chemical reaction......
    1. AThe number of moles or grams of a specified product
      -------------------------------------------------------------------------------- x 100
      Theoretical maximum number of moles or grams of
      the product
    2. BThe number of moles or grams of a specified product
      -------------------------------------------------------------------------------- x 1000
      Theoretical maximum number of moles or grams of
      the product

Información

Descripción
(Chem 1) AS Chem Test sobre Amount of substance, creado por Megan McLean el 14/05/2014.
Idioma
English
Visitas
43
Etiquetas
as chemchem 1
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