The sample of salt found to contain 6.96 × 10¹¹ grams is equivalent to 6.96 × 10⁸ kilograms.
Kilograms is the International System of Units (S.I unit) or base unit of mass while grams is a unit of mass equal to one-thousandth of a kilogram.
Grams as a unit of mass can be converted to kilograms as follows:
1 kilograms = 1000 grams
According to this question, a sample is found to contain 6.96 × 10¹¹ grams of salt. This unit can be converted to kilograms as follows:
6.96 × 10¹¹ ÷ 1 × 10³
= 6.96 × 10⁸ kilograms
Therefore, the sample of salt found to contain 6.96 × 10¹¹ grams is equivalent to 6.96 × 10⁸ kilograms.
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