SAlts

Question 1

how to name salt?

metal hydroxide+acid= salt + water

Answer 1

hydrochloric acid= metal + chloride
sulfuric=sulfate
nitric=nitrate

Question 2

If a acid reacts only with a metal what is formed?
what about metal oxide/hydroxide?
and with metal carbonate?

Answer 2

salt and hydrogen
salt and water
acid+metal carbonate = carbon dioxide +salt+water

Question 3

how to test for hydrogen and carbon dioxide

Answer 3

using lighted splint and putting into test tube
hear squeaky pop

bubble the gas thro limewater,bubbling in test tube
if CO2 turn cloudy.

Question 4

Which salts ones are soluble and which ones r insoluble ?

Answer 4

common salts of potassium sodium and ammonium-s
nitrates-s
chlorides-s-except silver ch.. and lead ch..
sulfates-s-except lead,barium and calcium sul..
carbonates and hydroxides-in-except sodium,potassium and ammonium

Question 5

how to make an insoluble salt.

Answer 5

1.Precipitation reaction
react 2 soluble salts to form an insoluble salt.
1 of each s salt in test tube and add deionised wtaer shake
pour into beaker = precipitate
filter
and then scrape product onto fresh filter paper and dry.

Question 6

howto make a soluble salt.

Answer 6

react acid and insoluble base(metal oxide or hydroxide)
heat acid in water bath -speed up reaction
add base to acid react to produce soluble salt.base needs to be in excess to make sure you have leftover acid in product and so its neutralized.
filter excess -only want solution with salt and water
heat solution gently -evaporate water-crystallize filter off solid salt and leave to dry.

Question 7

Explain an alternative way to produce a soluble salt

Answer 7

react acid and alkali.
do titration
Take a burette and clamp it in a vertical position-make sure the tap is horizontal,place a funnel at top of b and add 50 cm 3 of acid
Take bulb pipette and pipette to measure25 cm3 of alkali and squirt into conical flask.Add few drops of phenopthalein to it place on white tile place directly beneath b
Turn tap add 1cm3 acid at a time ,swirl repeat until there is a permanent colour change= neutralized,record volume of acid added to neutralise alkali
repeat experiment with same volumes but without indicator salt isnt contaminated
evaporate crystallise filter