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kolbaska11 [484]
2 years ago
11

What is the percentage of iodine in zinc iodate zn(io3)2

Chemistry
1 answer:
shusha [124]2 years ago
5 0

Answer:

61.131%

This is the percentage of iodine in zinc iodate.

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What is the mass in milligrams of 4.30 moles of sodium?use âeâ for âÃ10" and use significant figures?
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First, calculate the mass of sodium in g with the help of molar mass and number of moles.

Number of moles = \frac{given mass in g}{molar mass}   (1)

Molar mass of sodium =23 .0 g/mol

Substitute the given value of number of moles and molar mass of sodium in formula (1)

4.30 moles = \frac{given mass in g}{23.0 g/mol}   (1)

4.30 moles\times 23.0 g/mol = mass in g   (1)

mass of sodium in g = 98.9 g

Now, according to conversion factor, 1 g = 1000 mg

So, 98.9 g of sodium = 98.9 \times 1000  mg

= 98900 mg of sodium

Thus, mass of sodium in mg  =9.89 \times 10^{4} mg






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