Calculations in topic 2 chemistry quiz

Question 1 of 10

1

choose the correct flame colour for calcium in a flame test.

Select one of the following:

orangey-red
purple
yellow- orange
red-pink
green

Explanation

Question 2 of 10

1

choose the correct flame colour for potassium in a flame test.

Select one of the following:

green
orangey-red
red- pink
purple/lilac
yellowy- orange

Explanation

Question 3 of 10

1

In a cation precipitation reaction test, we added sodium hydroxide to Aluminium (3+) , what was the colour of the precipitate formed?

Select one of the following:

blue
green
white
brown

Explanation

Question 4 of 10

1

In a cation precipitation reaction test, we added sodium hydroxide to iron (3+), what was the color of the precipitate formed?

Select one of the following:

brown
white
blue
green

Explanation

Question 5 of 10

1

When testing for halide ions we added a small amount of the solution to a test tube, added a few drops of dilute nitric acid and silver nitrate. The test tube with Cl- ions in it would be which colour?

Select one of the following:

white
cream
yellow

Explanation

Question 6 of 10

1

Wen testing for halide ions we added a small amount of the solution to a test tube, added a few drops of dilute nitric acid and silver nitrate. The test tube with Br- ions in it would be which colour?

Select one of the following:

white
cream
yellow

Explanation

Question 7 of 10

1

Wen testing for halide ions we added a small amount of the solution to a test tube, added a few drops of dilute nitric acid and silver nitrate. The test tube with I- ions in it would be which colour?

Select one of the following:

white
cream
yellow

Explanation

Question 8 of 10

1

Concentration = mass/ volume.
id I had 10cm cubed of a 0.4g/dm cubed solution, what would the mass be?

Select one of the following:

0.004 g
0.34
0.0009

Explanation

Question 9 of 10

1

mass = moles multiplied by formula or atomic mass.
We have 9 grams of water ( H20).
work out the moles here.

Select one of the following:

0.5
2
8

Explanation

Question 10 of 10

1

moles = volume * concentration.we have HCL with a concentration of 2 mols, and a volume of 20cm cubed. We also have a volume of 25 cm cubed of NaOH.
What is the concentration of NaOH?

Select one of the following:

2 mol dm-3
1.6 mol dm-3
3.8 mol dm-3

	Created by greenchloe1998 over 9 years ago

Quiz on Calculations in topic 2 chemistry quiz, created by greenchloe1998 on 02/01/2015.

Calculations in topic 2 chemistry quiz

Calculations in topic 2 chemistry quiz

Question 1 of 10

choose the correct flame colour for calcium in a flame test.

Select one of the following:

Explanation

Question 2 of 10

choose the correct flame colour for potassium in a flame test.

Select one of the following:

Explanation

Question 3 of 10

In a cation precipitation reaction test, we added sodium hydroxide to Aluminium (3+) , what was the colour of the precipitate formed?

Select one of the following:

Explanation

Question 4 of 10

In a cation precipitation reaction test, we added sodium hydroxide to iron (3+), what was the color of the precipitate formed?

Select one of the following:

Explanation

Question 5 of 10

When testing for halide ions we added a small amount of the solution to a test tube, added a few drops of dilute nitric acid and silver nitrate. The test tube with Cl- ions in it would be which colour?

Select one of the following:

Explanation

Question 6 of 10

Wen testing for halide ions we added a small amount of the solution to a test tube, added a few drops of dilute nitric acid and silver nitrate. The test tube with Br- ions in it would be which colour?

Select one of the following:

Explanation

Question 7 of 10

Wen testing for halide ions we added a small amount of the solution to a test tube, added a few drops of dilute nitric acid and silver nitrate. The test tube with I- ions in it would be which colour?

Select one of the following:

Explanation

Question 8 of 10

Concentration = mass/ volume. id I had 10cm cubed of a 0.4g/dm cubed solution, what would the mass be?

Select one of the following:

Explanation

Question 9 of 10

mass = moles multiplied by formula or atomic mass. We have 9 grams of water ( H20). work out the moles here.

Select one of the following:

Explanation

Question 10 of 10

moles = volume * concentration.we have HCL with a concentration of 2 mols, and a volume of 20cm cubed. We also have a volume of 25 cm cubed of NaOH. What is the concentration of NaOH?

Select one of the following:

Explanation

Concentration = mass/ volume.
id I had 10cm cubed of a 0.4g/dm cubed solution, what would the mass be?

mass = moles multiplied by formula or atomic mass.
We have 9 grams of water ( H20).
work out the moles here.

moles = volume * concentration.we have HCL with a concentration of 2 mols, and a volume of 20cm cubed. We also have a volume of 25 cm cubed of NaOH.
What is the concentration of NaOH?