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level: Practicals

Questions and Answers List

level questions: Practicals

QuestionAnswer
What is the method for HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?1) Clamp you gas syringe onto your clamp stand. 2) Measure 50ml of 0.5 mol/dm³ hydrochloric acid in your measuring cylinder, and then pour it into your conical flask. 3) Add a magnesium ribbon and measure how much gas is produced every 30 seconds for 5 minutes. 4) Repeat the steps but with 50ml of 1.0 mol/dm³ of hydrochloric instead, and compare the results.
What is the hypothesis for HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?I believe that by increasing the concentration of hydrochloric acid will lead to the reaction being faster.
What is the independent variable for HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?The concentration of hydrochloric acid.
What is the dependent variable for HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?How much gas is produced every 30 seconds for 5 minutes.
What is the control variable for HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?- The mass of the magnesium used. - The mass of the hydrochloric acid used.
What is the equipment list for HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?- Gas syringe. - Clamp stand. > Clamp and Boss - Conical flask. - Measuring cylinder. - Hydrochloric acid (1.o mol/dm³ and 0.5 mol/dm³) - Magnesium ribbons. - Stopwatch.
What is the word equation for HOW DOES CONCENTRATION AFFECT THE RATE OF REACTION?Hydrochloric acid + Magnesium → Magnesium Chloride + Hydrogen