rp 4: temperature changes

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    Created by
    shannon rose

    Cards (2)

    • p1
      1. use a measuring cylinder to measure 30 cm3 of dilute hydrochloric acid
      2. transfer acid into a polystyrine cup & stand the cup in a beaker
      3. measure temperature of the acid w a thermometer & record in a  table
      4. use a measuring cylinder to measure 5 cm3 sodium hydroxide solution & transfer to polystyrine cup
      5. add a plastic lid to cup & place a thermometer through it
    • p2
      1. gently stir solution w thermometer
      2. when reading on thermometer stops changing record the highest temperature reached
      3. rinse & dry cup
      4. repeat whole experiment several times, increasing the volume of sodium hydroxide solution by 5 cm3 until 40 cm3
      5. do whole experiment again, calc mean & plot graph
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