Calculate density of aluminum if 27.6cm^3 has a mass of 74.6g

Answer : The density of aluminium will be,

Explanation :

Density : It is defined as the mass contained per unit volume.

Formula used for density :

Given :

Mass of aluminum = 74.6 grams

Volume =

Now put all the given values in the above formula, we get the density of aluminium.

Therefore, the density of aluminium will be,

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

the maximum mass of nh3 is nh3 in grams