Recent questions in Chemistry Form 3

0 votes

1 answer

Other than manufacture of sulphuric(VI) acid state two other uses of sulphur(IV) oxide.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Below is a set of apparatus that was used to obtain a dry sample of sulphur(iv)oxide gas

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

The flow chart below shows some industrial processes. Use it to answer the questions that follow

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Study the flow diagram below and then answer the questions that follow.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Draw and name two isomers of Pentane()

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

In an experiment 3.36g of iron fillings were added to excess copper (II) sulphate. Calculate the mass of copper that was deposited. (CU= 63.5, Fe = 56)

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

A piece of burning magnesium ribbon was plunged into a gas jar containing sulphur (IV) oxide.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Name the process which take place when white sugar changes to black solid when mixed with excess concentrated sulphuric acid.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Chlorine gas was bubbled through a solution of potassium iodide in boiling tube.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

An experiment was set up as shown below.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

When a mixture of iron filings and sulphur are heated, a red glow spreads through the mixture and a dark grey solid was formed.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

The molar mass of a gaseous compound XO2 is 64 gmol-1. A sample of this gas occupied 11.2dm3 at s.t.p.molar gas volume =22.4dm3.find

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

200cm3 of oxygen gas take 250seconds to diffuse through a porous plug. Under similar conditions, an equal volume of an unknown gas take 277 seconds to diffuse through the same porous plug. Calculate the relative molecular mass of the unknown gas.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

State Graham’s Law of diffusion.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

During heating of hydrated copper (II) sulphate crystals, the following readings were obtained:-

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Silver chloride can be prepared in the laboratory by the reaction between potassium chloride and silver nitrate.

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

When 5.35g of Sodium Nitrate were heated in an open crucible, the mass of oxygen produced was 0.83g. given that the equation for the reaction is:-

asked Jul 27, 2021 in Chemistry Form 3 by anonymous

0 votes

1 answer

Define critical angle.

asked Jul 26, 2021 in Chemistry Form 3 by anony mous

0 votes

1 answer

A mass of 3.6g of magnesium reacts in excess chlorine to form a chloride. If the mass of the chloride is 14.25g, find the formula of the chloride formed (Mg=24, Cl=35.5)

asked Jul 26, 2021 in Chemistry Form 3 by anony mous

0 votes

1 answer

20cm³ of a solution containing 4g per litre of sodium hydroxide was neutralized by 8.0cm³ of dilute sulphuric acid.Culculate the concentration of sulphuric acid in moles per litre.(Na=23,O=16,H=1).

asked Jul 24, 2021 in Chemistry Form 3 by erulu

Page:

« prev
1
...
4
5
6
7
8
9
10
next »

...