C4- Chemical economics

quiz about chemical economics including:
Acid and bases
Reactions of acids
Relative formula mass
Calculating masses in reactions
Percentage yield
fertilisers
The haber process
Allotropes
water purity

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  • Created by: electra
  • Created on: 13-04-11 19:07
what do acids and bases do if they react together?
they neutralise each other
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what does relative atomic mass mean?
it means how heavy atoms are in a element
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how do you calculate mass in a reaction?
you write out the balanced equation, then work out the Mr just for the bits you wan, and then apply the rule:divide to get one, then multiply to get all
3 of 11
what are the process of water purification in order?
filtration, sedimentation, chlorification
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what is the name of the process that damage lakes and rivers when using fertilisers?
eutrophication
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is the haber process a reversible reaction?
True
6 of 11
what are the industrial condition needed for the haber process in order to make ammonia?
Pressure:200 amp temperature: 450 °C Catalyst:iron
7 of 11
is it false that the high pressure increases the percentage yield?
True
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john makes sodium chloride. he uses sodium hydroxide and an acid, which acid?
hydrochloric acid
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how do you produce fertilisers with ammonia?
you neutralise ammonia with acid
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what is an acid? and a base?
a substance with a Ph less than 7 and a Ph higher than 7
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Other cards in this set

Card 2

Front

what does relative atomic mass mean?

Back

it means how heavy atoms are in a element

Card 3

Front

how do you calculate mass in a reaction?

Back

Preview of the front of card 3

Card 4

Front

what are the process of water purification in order?

Back

Preview of the front of card 4

Card 5

Front

what is the name of the process that damage lakes and rivers when using fertilisers?

Back

Preview of the front of card 5
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Comments

Emma Reynolds

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for question 15 the correct answer is sedimentation, filtration and chlorination, not filtration, sedimentation, chlorification and for question 7 you should make it more clear that it is actual yield divided by predicted yield x100

Naomi Hill

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question 7 is wrong

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