An ore sample is known to contain copper sulfate pentahydrate, CuSO4•5H2O. If a 10.000 g sample of the ore loses 0.8445 g of water when strongly heated, what is the maximum quantity of CuSO4•5H2O that could be in the sample

2,341g of CuSO₄.5H₂O

Explanation:

It is possible to assume all loses water comes from CuSO₄.5H₂O. Thus:

0,8445g H₂O (1mol H₂O / 18,015g) = 0,04688 moles of water.

As 1 mole of contains 5 moles of water, moles of CuSO₄.5H₂O are:

0,04688 moles H₂O × (1 mole CuSO₄.5H₂O / 5 moles H₂O) = 9,38x10⁻³ moles of CuSO₄.5H₂O

The molecular mass of CuSO₄.5H₂O is 249,69g/mol. Thus, mass of 9,38x10⁻³ moles of CuSO₄.5H₂O is:

9,38x10⁻³ moles of CuSO₄.5H₂O × (249,69g / mol) =

2,341g of CuSO₄.5H₂O is the maximum quantity of CuSO₄.5H₂O that could be in the sample.

I hope it helps!

particle   p is an electron and particle q is a neutron

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them