calculate the weight of copper in the Cu(NH3)4SO4 H20 you made.
Mass of Cu(NH3)4SO4 H20 = 0.1140g
You have already been given the mass of that compound.
For the mass of copper it contains, multiply by
63.54/[63.54 + (4*17) + 32 +(4*16) +18]
That is the fraction of the mass of each molecule that is copper.
To calculate the weight of copper (Cu) in Cu(NH3)4SO4 H2O, we need to find the molar mass of Cu(NH3)4SO4 H2O and then determine the percentage of Cu in the compound.
Step 1: Find the molar mass of Cu(NH3)4SO4 H2O
The molar mass is the sum of the atomic masses of all the elements in the compound.
The atomic masses are:
Cu = 63.546 g/mol
N = 14.007 g/mol
H = 1.007 g/mol
S = 32.06 g/mol
O = 15.999 g/mol
H2O = 18.015 g/mol
Cu(NH3)4SO4 H2O:
(1 × Cu) + (4 × N) + (12 × H) + S + (4 × O) + (2 × H2O) =
(1 × 63.546) + (4 × 14.007) + (12 × 1.007) + 32.06 + (4 × 15.999) + (2 × 18.015) =
255.082 g/mol
Step 2: Determine the percentage of Cu in Cu(NH3)4SO4 H2O
The percentage of Cu can be calculated using the molar mass of Cu and the molar mass of Cu(NH3)4SO4 H2O.
Percentage of Cu = (Molar Mass of Cu / Molar Mass of Cu(NH3)4SO4 H2O) × 100
Percentage of Cu = (63.546 g/mol / 255.082 g/mol) × 100 = 24.89%
Step 3: Calculate the weight of Cu
To calculate the weight of Cu, multiply the mass of Cu(NH3)4SO4 H2O by the percentage of Cu (expressed as a decimal).
Weight of Cu = Mass of Cu(NH3)4SO4 H2O × (Percentage of Cu / 100)
Weight of Cu = 0.1140 g × (24.89 / 100) = 0.0284 g
Therefore, the weight of copper (Cu) in Cu(NH3)4SO4 H2O is 0.0284 grams.
To calculate the weight of copper (Cu) in the compound Cu(NH3)4SO4 H2O, you need to determine the molar mass of Cu(NH3)4SO4 H2O and then find the mass percentage of copper in that compound.
- Step 1: Calculate the molar mass of Cu(NH3)4SO4 H2O.
To do this, you will need to find the molar mass of each element in the compound and multiply it by the number of atoms of that element in the compound.
The molar mass of copper (Cu) is approximately 63.55 g/mol.
The molar mass of nitrogen (N) is approximately 14.01 g/mol.
The molar mass of hydrogen (H) is approximately 1.01 g/mol.
The molar mass of sulfur (S) is approximately 32.07 g/mol.
The molar mass of oxygen (O) is approximately 16.00 g/mol.
The molar mass of water (H2O) is approximately 18.02 g/mol.
Using these values, you can calculate the molar mass of Cu(NH3)4SO4 H2O:
Molar mass = (4 * molar mass of NH3) + molar mass of Cu + molar mass of SO4 + molar mass of H2O
= (4 * (14.01 g/mol + 3 * 1.01 g/mol)) + 63.55 g/mol + 32.07 g/mol + 18.02 g/mol
Now you can calculate the molar mass of Cu(NH3)4SO4 H2O.
- Step 2: Calculate the mass percentage of copper in Cu(NH3)4SO4 H2O.
To calculate the mass percentage of an element in a compound, you need to divide the molar mass of the element by the molar mass of the compound and multiply by 100.
Mass percentage of copper = (molar mass of Cu / molar mass of Cu(NH3)4SO4 H2O) * 100
Now you can substitute the molar masses you calculated into this equation to find the mass percentage of copper.
- Step 3: Calculate the weight of copper in Cu(NH3)4SO4 H2O.
Finally, to calculate the weight of copper in the compound, you need to multiply the mass of Cu(NH3)4SO4 H2O (given in the question) by the mass percentage of copper.
Weight of copper = Mass of Cu(NH3)4SO4 H2O * (mass percentage of copper / 100)
Plugging in the given mass of Cu(NH3)4SO4 H2O and the mass percentage of copper you calculated, you can find the weight of copper.