6.1
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What is the phosphate ion?
What is phosphoric acid?
What happens when ammonia reacts with an acid?
Instead of salt + water , Only salt With ammonium ion (NH4+)
Why are fertilsers needed?
They contain NPK (essential elements)needed by plants to grow. The fertilisers will increase yield and replace the elements used up when growing the previous crop. (Increase agricultural productivity) Nitrogen helps plants grow proteins Phosphorus helps ATP
What is the deficiency of NPK in farming ?
Why is the haber process important in agriculture?
Makes ammonia that is needed to produce synthetic fertilisers
The Haber Process
• obtain nitrogen and hydrogen from the air / natural gases • then compress them to 200 atmp, then heat the gas to 450 • the gases are them pumped into a tank, that contains layers of catalyictic iron beads • ammonia is then formed and allong with the unreacted nitrogen and hydrogen pumped into a cooling tank. Ammonia is recieved as a liquid. • The unreacted ammonia and hydrogen are recyclyed back into the tank.
How do you make potassium sulfate ? ( a needed fertiliser)
How do you make ammonium sulfate? ( a fertilster )
what are the differences between a batch process and a continuous process?
The batch process is in labs, whereas the continuous process happens in factories and on a larger scale (much more automated)
What are the conditions needed for the haber process?
What are the conditions needed for the contact process?
Stage 1 of the contact process
Stage 2 of the contact process
Stage 3 contact process
What are the certain conditions needed for stage 2 and why? (Of contact process )
Catalyst for the contact process
Reactivity series with carbon
Extracting with carbon is a lot more cheaper
How do you extract copper (practical method) with safety?
Wear eye protection
How can copper be extracted from copper(II) sulfide?
What are the two methods for making ethanol ?
🟢fermentation 🟢flash /hydration method
Describe the fermentation method for making ethanol
Describe the flash /hydration method for making ethanol
Compare the flash method with the fermentation method for making ethanol.
Cost Availability of raw materials Rate of reaction Yield of ethanol
