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Calcium chloride solution reacts with silver nitrate solution - Edexcel - GCSE Chemistry - Question 2 - 2012 - Paper 1
Question 2
Calcium chloride solution reacts with silver nitrate solution. Solid silver chloride and calcium nitrate solution are formed. (i) Complete the sentence by putting a... show full transcript
Worked Solution & Example Answer:Calcium chloride solution reacts with silver nitrate solution - Edexcel - GCSE Chemistry - Question 2 - 2012 - Paper 1
Step 1
Step 2
Suggest why the yield was less than 4.0 g.
Answer
The yield may be less than 4.0 g due to several factors including:
- The reaction may have been incomplete, resulting in less product being formed.
- Some reactants may have been lost due to side reactions that took place.
- Silver chloride could have been lost during transfer or due to spillage while filtering.
- Residue may have remained on the filter paper, reducing the amount collected.
Step 3
Calculate the percentage yield of this experiment.
Answer
The percentage yield can be calculated using the formula:
ext{Percentage Yield} = rac{ ext{Actual Yield}}{ ext{Theoretical Yield}} imes 100
Substituting the known values:
ext{Percentage Yield} = rac{3.0 ext{ g}}{4.0 ext{ g}} imes 100 = 75\\%