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3 years ago

Which island is older Kauai or Maui

Chemistry

1 answer:

evablogger [386]3 years ago

5 0

Answer:

Kauai

Explanation:

I look this up when I am doing math

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kirill [66]

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2 years ago

How do segments of DNA give an organism certain traits?

tatiyna

Answer:

Because DNA is like a code for an organism such as sheep or humans the code of gene segments such as C G A T all collaborate and make a strand of DNA so it all depends on the letters our parents traits and the enviroment.

Explanation:

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6 0

4 years ago

A 0.753 g sample of a monoprotic acid is dissolved in water and titrated with 0.250 M NaOH. What is the molar mass of the acid i

Alexeev081 [22]

Answer:

$MM_{acid}=140.1g/mol$

Explanation:

Hello,

In this case, since the acid is monoprotic, we can notice a 1:1 molar ratio between, therefore, for the titration at the equivalence point, we have:

$n_{acid}=n_{base} \\\\V_{acid}M_{acid}=V_{base}M_{base}\\\\n_{acid}=V_{base}M_{base}$

Thus, solving for the moles of the acid, we obtain:

$n_{acid}=0.0215L*0.250\frac{mol}{L}=5.375x10^{-3}mol$

Then, by using the mass of the acid, we compute its molar mass:

$MM_{acid}=\frac{0.753g}{5.375x10^{-5}mol} \\\\MM_{acid}=140.1g/mol$

Regards.

7 0

3 years ago

What is the pH of a solution that contains a pOH of 7.9?

tatiyna

PH and pOH are opposites, so pH can be determined by subtracting pOH from 14
pH = 14 - 7.9 = 6.1

7 0

4 years ago

Which formula represents the compound commonly known as phosphine?

sineoko [7]

Your answer should be c ph3

3 0

3 years ago

Read 2 more answers