Table of Contents
- 1 How do you find the mass percent of copper sulfate in an unknown mixture?
- 2 How do you calculate the mass of an element in a given mass of a compound?
- 3 What is the formula mass of ammonium sulfate?
- 4 What is the molar mass of CuSO4?
- 5 How do you weigh copper sulfate crystals?
- 6 What happens if you heat anhydrous copper sulfate?
How do you find the mass percent of copper sulfate in an unknown mixture?
Determine the concentration by mass percent by dividing the formula weight of CuSO4 by the formula weight of CuSO4-5H2O and multiplying by 100 percent: 159.62 / 249.72 * 100 = 63.92 percent.
How do you calculate the mass of an element in a given mass of a compound?
Now, mass of an element in a given mass of compound = (atomic mass of the element × number of atoms of the element in one molecule of the compound) × given mass of compound / molar mass of the compound.
How do you calculate the mass percent of a compound?
To calculate the mass percent of an element in a compound, we divide the mass of the element in 1 mole of the compound by the compound’s molar mass and multiply the result by 100.
What is the percentage of copper in copper sulphate?
Anhydrous copper sulfate is 39.81 percent copper and 60.19 percent sulfate by mass, and in its blue, hydrous form, it is 25.47\% copper, 38.47\% sulfate (12.82\% sulfur) and 36.06\% water by mass.
What is the formula mass of ammonium sulfate?
132.14 g/mol
Ammonium sulfate/Molar mass
What is the molar mass of CuSO4?
159.609 g/mol
Copper(II) sulfate/Molar mass
How to find the mass of water of hydrated copper(II) sulfate?
In this experiment, a known mass of hydrated copper (II) sulfate is heated to remove the water of crystallisation. The mass of water is found by weighing before and after heating. This information is used to find x in the formula CuSO 4 .xH 2 O, using mole calculations
What is a quantitative analysis of copper in a soluble copper salt?
A quantitative analysis of copper in a soluble copper salt will by performed by complexometric titration. The complexing agent will be ethylenediaminetetraacetic acid (EDTA) in the form of its disodium dihydrate salt (Na2C10H18N2O10), with a molar mass of 372.24 g mol –1.
How do you weigh copper sulfate crystals?
If large crystals are used, these should be ground down before use by students. Weigh the empty crucible, and then weigh into it between 2 g and 3 g of hydrated copper (II) sulfate. Record all weighings accurate to the nearest 0.01 g.
What happens if you heat anhydrous copper sulfate?
The blue colour of the hydrated compound should gradually fade to the greyish-white of anhydrous copper (II) sulfate. Avoid over-heating, which may cause further decomposition, and stop heating immediately if the colour starts to blacken. If over-heated, toxic or corrosive fumes may be evolved.