Question

The most common isotopic forms of hydrogen are ordinary hydrogen (1H) and deuterium (2H), which have percent compositions of 99.98% and 0.0115%, respectively. Convert the percent isotopic composition value of 2H to decimal form.

Answer 1

Answer:

0. 000115

Explanation:

A percentage is defined as a ratio with a basis of 100 as total substance. Convert a percentage to decimal implies to divide the percentage in 100 because decimal form has as basis 1.

For the isotopic forms:

1H: 99.98% → As percent.

99.98% / 100 = 0.9998 → As decimal form.

2H: 0.0115% → As percent.

0.0115% / 100 = 0. 000115→ As decimal form.

Answer 2

The percent should be 0. 000115

• The calculation is as follows:

For the isotopic forms:

1H: 99.98% → As percent.

Now

$99.98\% \div 100$= 0.9998 → As decimal form.

Now

2H: 0.0115% → As percent.

And,

$0.0115\% \div 100$= 0. 000115→ As decimal form.

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