(1) (1)
Calculate the amount in moles of chlorine collected after 20 minutes.
Use Figure 3.
The volume of one mole of any gas at room temperature and pressure is 24.0 dm
Give your answer in standard form.
Moles of chlorine =
mol
(3)
(Total 14 marks)
Q4.

the answer is 1 i believe

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.