Reactions between acids and bases

Question 1

two common laboratory acids

Answer 1

sulfuric acid and hydrochloric acid

Question 2

what is a strong acid

Answer 2

acids that break up (dissociate) almost completely when dissolved in water

Question 3

common laboratory bases

Answer 3

sodium hydroxide (caustic soda-drain cleaner) , calcium hydroxide

Question 4

neutralisation

Answer 4

the reaction between equal parts acid and equal parts base = neutral (salt and water)

Question 5

an example of a neutralisation reaction (chemical equation)

Answer 5

hydrochloric acid + sodium hydroxide = sodium chloride + water
HCl + NaOH = NaCl + H2O

Question 6

Titration

Answer 6

The method of adding one solution from a burette to another solution in order to find out how much of the two solutions will just react with each other

Question 7

titrate HCl against NaOH

Answer 7

Acid Above (burette) Base Below (pipette) use methyl orange as indicator, add acid until one drop turn it pink

Question 8

what is in acid rain , where do they come from

Answer 8

sulfur dioxide from burning fossil fuels and nitrogen oxide from car emissions

Question 9

acid rain damages ..

Answer 9

trees, fish and limestone, and washes away calcium from soil

Question 10

solving problem of acid rain

Answer 10

limestone (base) is used to remove sulfur dioxide from power stations emissions

• catalytic converters in cars remove harmful oxides of nitrogen in exhaust fumes
• more renewable energy, less fossil fuels