You have an unknown compound of Potassium derivatives (KIxOy). This sample contains 17.0g of potassium, and 27.8g of oxygen and 55.2g of iodine. If you prepared another sample, but this time it had 460.0g of potassium periodate, how much oxygen and iodine would you have in your sample?

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Explanation:

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kumaripoojavt kumaripoojavt · Answer 2 · 2022-07-21T11:33:47+02:00

460 grams of Potassium periodate contains 128 grams of Oxygen and 253.9 grams of Iodine.

What is a compound?

A compound is composed of atoms from two or more different elements chemically bonded together in fixed small whole number ratios to each other.

Mass of potassium= 17.0 grams

Mass of Oxygen= 27.8 grams

Mass of Iodine= 55.2 grams.

Mass of Potassium periodate= Mass of Potassium+Mass of Oxygen+Mass of Iodine

Mass of Potassium periodate= 17g+27.8g+55.2g

Mass of Potassium periodate= 100 grams

Therefore, 100 grams of Potassium periodate contains 27.8 grams of Oxygen

1 gram Potassium periodate contains 27.8/100= 0.278 grams of Oxygen

So, 1×460= 460 grams Potassium periodate contains 0.278×460

=128 grams Oxygen

Now,

100 grams of Potassium periodate contains 55.2 grams of Iodine

1 gram of Potassium periodate contains 55.2/100=0.552 grams of Iodine

1×460=460 grams Potassium periodate contains 0.552×460

=253.9 grams of Iodine.

So, 460 grams of Potassium periodate contains 128 grams of Oxygen and 253.9 grams of Iodine.

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