Answer:
0.0125mol/dm³
Explanation:
Given parameters:
Mass of carbon dioxide = 0.22g
Volume of water = 400cm³
Unknown:
Concentration in mol/dm³ = ?
Solution:
Concentration is the amount of solute dissolved in a solvent.
The formula is expressed as;
Concentration =
Number of moles = ![\frac{mass}{molar mass}](https://tex.z-dn.net/?f=%5Cfrac%7Bmass%7D%7Bmolar%20mass%7D)
Molar mass of CO₂ = 12 + 3(16) = 44g/mol
Number of moles =
= 0.0005mol
Now,
1000cm³ = 1dm³
400cm³ =
= 0.4dm³
Insert the parameters and solve;
Concentration =
= 0.0125mol/dm³
Because since its more complex it has more detail and information to it
Answer:
Metre
Explanation:
the SI unit of length is <em>Me</em><em>tre</em>