1000 Questions Sulfur

Question 1

Explain the difference in boiling points between H₂S and H₂O.

Question 2

Draw the shapes of:

SCl₂, SO₂Cl₂, SOCl₂, SOF₄

Question 3

Give a preparation for:

H₂S, SO₂, SO₃, SO₃^2-, SO₄^2-, S₂O₃^2-

Question 4

Draw S₂O₃^2- and explani why the 2 S atoms in this compound have a different oxidation state.

Question 5

2.75g of white powder was known to consist of a mixture of Na₂SO₄, Na₂CO_3, and Na₂SO₃. On the addition of aqueous BaCl₂ followed by addition of an acid, 1.35g of white precipitate were collected. It was also noted that 130cm³ of CO₂ were also produced from the reactions.

Find the percentage by mass of all the compounds in the mixture.

Question 6

Sulfur oxides are a big source of pollution. Give 3 ways how to reduce the Sulfur oxides emissions from transport.

Question 7

In each of the following reactions, balance the reaction and identify the oxidant and the reductant.

i)

ii)

iii)

Question 8

The following 2 chemical reactions illustrate 2 properties for H₂SO₄.

What properties are shown in the above 2 reactions?

Question 9

H₂SO₄ has a number of properties. Discuss 3 more properties of H₂SO₄ not mentioned in question 8.

Question 10

A compound containing S, O and Cl reacts with water to produce H₂SO₄ and HCl.

6.75g of compound was reacted in water in the solution was made up to 1000cm³.

50cm³ of this solution reacted with BaCl₂ and 0.5835g of precipitate was formed.

50cm³ of this solution required 20cm³ of 0.5M NaOH for complete neutralisation.

When 0.5g of compound was vaporised it occupied 112cm³ at 100^oC and 1atm.

What is the molecular formula?