Amount of substance

Beschreibung

AS Chem (Chem 1) Quiz am Amount of substance, erstellt von Megan McLean am 14/05/2014.
Megan McLean
Quiz von Megan McLean, aktualisiert more than 1 year ago
Megan McLean
Erstellt von Megan McLean vor mehr als 10 Jahre
25
2

Zusammenfassung der Ressource

Frage 1

Frage
The relative atomic mass can be defined by......
Antworten
  • 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

Frage 2

Frage
Number of moles.....
Antworten
  • m/mr
  • mr/m

Frage 3

Frage
Ideal gas equation is.....
Antworten
  • PV/T
  • PV=nRT

Frage 4

Frage
How do you calculate the molecular formula?
Antworten
  • Relative mass of empirical formula ----------------------------------------------------- Relative molecular mass
  • Relative molecular mass ------------------------------------------------------ Relative mass of empirical formula

Frage 5

Frage
Concentration = ...........
Antworten
  • Volume in dm --------------------------- Number of moles
  • Number of moles ---------------------------- Volume in dm

Frage 6

Frage
Number of moles in solution....
Antworten
  • M x 1000 ------------- V
  • M x V ---------- 1000

Frage 7

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

Frage 8

Frage
Yield of a chemical reaction......
Antworten
  • 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

Frage 9

Frage
Yield of a chemical reaction......
Antworten
  • 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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