Moles, Concentration & Volume Calculations

Cards (22)

  • What does the equation link in chemistry?
    Number of moles, concentration, and volume
  • How is volume measured in this context?
    In decimeters cubed
  • How is concentration expressed in this context?
    Moles per decimeter cubed
  • What does the forward slash in concentration notation indicate?
    It means per
  • What do the letters n, c, and v represent in the formula?
    n for moles, c for concentration, v for volume
  • How do you convert 800 centimeters cubed to decimeters cubed?
    Divide by 1000 to get 0.8
  • What is the total number of moles in 800 cm³ of sodium hydroxide at 0.2 moles/dm³?
    0.16 moles
  • How do you find the concentration of hydrochloric acid given 0.6 moles in 1.5 dm³?
    Divide moles by volume
  • What is the concentration of hydrochloric acid if it contains 0.6 moles in 1.5 dm³?
    0.4 moles per decimeter cubed
  • What is the first step in solving for an unknown concentration or volume?
    Identify known values from the question
  • How do you convert 30 cm³ to decimeters cubed?
    Divide by 1000 to get 0.03
  • How do you convert 25 cm³ to decimeters cubed?
    Divide by 1000 to get 0.025
  • What is the basic idea for solving these types of chemistry questions?
    Calculate moles, use molar ratio, find concentration
  • How do you calculate moles of potassium hydroxide from its concentration and volume?
    Multiply concentration by volume
  • How many moles of potassium hydroxide are in 0.5 moles/dm³ and 0.03 dm³?
    0.015 moles
  • How do you determine the molar ratio between potassium hydroxide and sulfuric acid?
    By looking at the coefficients in the equation
  • What is the molar ratio of potassium hydroxide to sulfuric acid in this scenario?
    2 to 1
  • How do you find moles of sulfuric acid from moles of potassium hydroxide?
    Divide moles of potassium hydroxide by 2
  • How many moles of sulfuric acid are produced from 0.015 moles of potassium hydroxide?
    0.0075 moles
  • How do you calculate the concentration of sulfuric acid?
    Divide moles by volume
  • What is the concentration of sulfuric acid if it has 0.0075 moles in 0.025 dm³?
    0.3 moles per decimeter cubed
  • What are the steps to calculate an unknown concentration in a chemical reaction?
    1. Identify known values (volume, concentration)
    2. Convert volumes to decimeters cubed
    3. Calculate moles of known substance
    4. Use molar ratio to find moles of unknown
    5. Calculate concentration of unknown substance