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lesya692 [45]
2 years ago
11

Platinum is a transition metal and forms Pt+2 and Pt+4 ions. Write the formulas for the compounds for each platinum ion with:

Chemistry
1 answer:
ehidna [41]2 years ago
3 0

Answer:

a

Explanation:

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What is the mass of 5 moles of Fe2(CO3)3 ?
sineoko [7]

Answer:

1218.585

Explanation:

Looking at the subscripts we know there are 2 atoms of Fe, 3 atoms of C, and 6 of O.

Take the molar mass of each atom (from the periodic table) and multiply by the # of atoms

Fe: 55.845×2= 111.69

C: 12.011×3= 36.033

O:15.999×6=95.994

Add the values together: 243.717 g/mol

That is 1 mole of the molecule. Multiply by 5 for the final answer.

243.717×5=1218.585

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