Question

get 30 points here by answering

calculate molar mass of nickel
chloride I want whole
calculation


answer this and get 31 points​

Answer 1

Answer:

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Explanation:

The mole allows scientists to calculate the number of elementary entities (usually atoms or molecules ) in a certain mass of a given substance.

Avogadro’s number is an absolute number: there are 6.022×1023 elementary entities in 1 mole. This can also be written as 6.022×1023 mol-1.

The mass of one mole of a substance is equal to that substance’s molecular weight. For example, the mean molecular weight of water is 18.015 atomic mass units (amu), so one mole of water weight 18.015 grams.

Key Terms

mole: The amount of substance of a system that contains as many elementary entities as there are atoms in 12 g of carbon-12.

Answer 2

Answer:

Molar mass of Nickel chloride is 128.69g/mol

we know that, molar mass of Nickel =58.69g

And, chlorine=35.5g

Therefore there are two chlorine atoms...

so,Molar mass of NiCl2=1×58.69+2×35.5

=58.69+70

=128.69g/mol

Explanation:

Hope it helps you frnd....