Skip to content

Course home

Calculations involving masses

Calculations involving masses

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139
Question 99

Titanium can be extracted from titanium(IV) chloride, TiCl4\text{TiCl}_4TiCl4​, by reaction with molten magnesium.

45.0 tonnes of titanium(IV) chloride was reacted with magnesium. The titanium metal formed in the reaction was separated and purified. The mass of titanium produced was then determined.

The results are shown in Table 1.

Table 1

Mass in tonnes
Mass of titanium(IV) chloride45.00
Mass of titanium produced7.85
Theoretical mass of titanium formed11.36

Use the information in Table 1 to calculate the percentage yield of titanium in this process.

percentage yield=actual yieldtheoretical yield×100 \text{percentage yield} = \frac{\text{actual yield}}{\text{theoretical yield}} \times 100 percentage yield=theoretical yieldactual yield​×100

Give your answer to 1 decimal place.

[3]
Markscheme

Calculations involving masses Questions

  1. GCSE
  2. /Chemistry
  3. /Calculations involving masses

258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank