Calculate the mass fraction of copper in copper hydroxide (2).
| March 14, 2021 | education
Let’s write down the formula for copper hydroxide:
Cu (OH) 2
Formula for determining the mass fraction of a substance in a solution:
w (substance) = M (substance) / M (solution)
Let’s find the molar masses:
M (Cu) = 63.4 g / mol
M (Cu (OH) 2) = 63.4 + 2 * (16 + 1) = 97.5 g / mol
Now, substituting we find our values:
w (Cu) = 63.4 / 97.5 = 0.65 = 65%
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
