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A liter of water contains about 3.35•10^25 molecules. A certain river discharges about 1.8•10^8 litter of water every second. About how many molecules does the river discharge every minute. Write your answer in scientific notation.

Respuesta :

sqdancefan
[tex] \frac{3.35 \times 10^{25} molecules}{1 liter} \times \frac{1.8 \times 10^{8} liter}{1 second} \times \frac{60 second}{1 minute} = \frac{3.35 \times 1.8 \times 60 \times 10^{25+8} molecules}{1 minute} = 3.618 \times 10^{35} \frac{molecules}{minute} [/tex]

Answer:[tex]361.8\times 10^{33} molecules\ per\ minute[/tex]

 

Step-by-step explanation:

 Given

1 litre of water contains [tex]3.35 \times 10^{25}[/tex]

River discharges about [tex]1.8\times 10^8 litre[/tex] of water per second

so river in 1 minute discharges =[tex]\frac{1.8\times 10^8}{\frac{1}{60}}[/tex]

=[tex]1.8\times 60\times 10^{8}=108\times 10^8[/tex]

Molecules discharge by river in 1 minute is [tex]108\times 3.35\times 10^{25}\times 10^8[/tex]

[tex]=361.8\times 10^{33} molecules\ per\ minute[/tex]

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