1.

Express in standard form:Mass of a molecule of hydrogen gas is about 0.00000000000000000000334 tons.

Answer»

Given that, Mass of a molecule of hydrogen gas = 0.00000000000000000000334 tons

Standard form = 0.334 × 10-20 tons

= 3.34 × 10-1 × 10-20

Using the law of exponent, am x an = am+n

= 3.34 × 10-1-20

= 3.34 × 10-21

∴ The standard form is 3.34 × 10-21 tons



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