11. What is the mass of 30,000 molecules? Express your answer in scientific notation 0

the mass of 30,00 molecules of oxygen is gram

Step-by-step explanation:

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1.59 x 10^-18

Step-by-step explanation:

The mass of the 30,000 molecules is 1.59 x 10^-18

Given this information,

- There are 30,000 molecules.

- And, the mass of one molecule of oxygen i.e. 5.3 x 10^-18 grams.

Based on the information above, the calculation is this:

= 30,000 x 5.3 x 10^-23

= 3 x 10^4 x 5.3 x 10^-23

= 1.59 x 10^-23+4

= 1.59 x 10^-19

= 1.59 x 10^-19 x 10

= 1.59 x 10^-18

Therefore, we can determine that the mass of 30,000 molecules is 1.59 x 10^-18.

I hope this helped!

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.