3 years ago

A 2 m3 wooden block has a mass of 10 kg. What is the density of the block?

Chemistry

1 answer:

Alex73 [517]3 years ago

6 0

Answer:

Explanation:

density is equal to mass over volume

p=m/v

You might be interested in

What are the spectator ions in this reaction

Lady_Fox [76]

sodium ions and chloride ions

6 0

4 years ago

QUE ES UN ENLACE GLUCOSÌDICO?

Blizzard [7]

Answer:

Explanation:

no se hombre necisito pontos

8 0

3 years ago

Give reason brick is a solid

Elenna [48]

The brick is solid because it's not hollow or containing spaces or gaps

3 0

3 years ago

C(S)+O2(g)-->CO2(g)

soldi70 [24.7K]

<u>Answer:</u> The correct answer is 1.18 g.

<u>Explanation:</u>

We are given a chemical equation:

$C(S)+O2(g)\rightarrow CO_2(g)$

We know that at STP conditions:

22.4L of volume is occupied by 1 mole of a gas.

So, 2.21L of carbon dioxide is occupied by = $\frac{1}{22.4L}\times 2.21L=0.0986mol$ of carbon dioxide gas.

By Stoichiometry of the above reaction:

1 mole of carbon dioxide gas is produced by 1 mole of carbon

So, 0.0986 moles of carbon dioxide is produced by = $\frac{1}{1}\times 0.0986=0.0986mol$ of carbon.

Now, to calculate the mass of carbon, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Moles of carbon = 0.0986 mol

Molar mass of carbon = 12 g/mol

Putting values in above equation, we get:

$0.0986mol=\frac{\text{Mass of carbon}}{12g/mol}\\\\\text{Mass of carbon}=1.18g$

Hence, the correct answer is 1.18 g.

3 0

3 years ago

Read 2 more answers

19. I accidentally mixed bleach and ammonia when cleaning one day. It released 55 liters of deadly chlorine (CI) gas. How many g

user100 [1]

55,000 grams
Hope this helps you out :)

3 0

3 years ago