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enot [183]
3 years ago
10

A bacteria culture begins with 15 bacteria which double in amount at the end of every hour. Solve for the number of bacteria tha

t are grown during the 12th hour.
Chemistry
1 answer:
pshichka [43]3 years ago
5 0
The number of bacteria is given by:
N(t) = N(o) x 2ⁿ
Where N(t) is the number after n hours have passed and N(o) is the original number which is 15.
The number grown in the 12th hour is the difference in the number after the 11th and the 12th hour. Thus:
15 x 2¹² - 15 x 2¹¹
= 30,720 bacteria
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3 years ago
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A(g) + b(g) => ab(g), the rate is 0.239 mol/l.s when the initial concentrations of both a and b are 2.00 mol/l. if the reacti
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Answer:

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4 0
3 years ago
A piper delivers 9.98 g of water at 19 degrees Celsius. What does the pipet deliver
leva [86]

Answer:

the volume = 9.99 ml

Explanation:

in your Q we need to calculate the volume does the pipet deliver so , we are going to use this formula:

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here we need to know the density of water at a certain temperature 19 degrees Celsius ,so I used an external source   to get the density of water at 19 degrees Celsius because it is changing with different temperatures

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-1

by substitution :

the volume = 9.98 g / 0.998405mL

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3 years ago
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Answer:

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