Skip to content

Course home

Sign up

Atoms and reactions

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137
Question 132

Titanium can be manufactured by heating titanium(IV) chloride, TiCl4\text{TiCl}_4TiCl4​, with magnesium:

TiCl4+2Mg→Ti+2MgCl2 \text{TiCl}_4 + 2\text{Mg} \rightarrow \text{Ti} + 2\text{MgCl}_2 TiCl4​+2Mg→Ti+2MgCl2​

12.5 g of TiCl4\text{TiCl}_4TiCl4​ is reacted with an excess of magnesium. The percentage yield of titanium is 80.0%.

What is the mass of titanium made?

(Relative atomic masses, ArA_rAr​: Ti=47.9\text{Ti} = 47.9Ti=47.9, Cl=35.5\text{Cl} = 35.5Cl=35.5)

A

2.52 g2.52\text{ g}2.52 g

B

3.15 g3.15\text{ g}3.15 g

C

3.94 g3.94\text{ g}3.94 g

D

5.04 g5.04\text{ g}5.04 g

Markscheme

Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions

199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank