How many grams would 3.36 × 1023 molecules of copper (ii) sulfate (cuso4) weigh?

The mass of copper(II)sulfate are, 89.6 grams

Explanation: Given,

Molecules of =

Molar mass of = 160 g/mole

First we have to calculate the moles of .

As, number of atoms present in 1 mole of

So, number of atoms present in mole of

Now we have to calculate the mass of

Therefore, the mass of copper(II)sulfate are, 89.6 grams

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

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