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3 years ago

Write the electron configuration for each atom A. Carbon B. Argon C. Nickel

1 answer:

5 0

I will assume you know how to do electron configurations, since they can be hard to explain.
Carbon is the 6th element: it goes

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The normal range of the pH of blood is between 7.35 and 7.45; variations beyond this range have significant health implications.

patriot [66]

Answer:

The hydrogen ion concentrations associated with these pH value 7.35 is $4.5\times 10^{-8} M$

The hydrogen ion concentrations associated with these pH value 7.45 is $3.6\times 10^{-8} M$ .

Explanation:

To calculate the pH of the solution, we use the equation:

$pH=-\log[H^+]$

We are given:

1) pH = 7.35

Putting values in above equation, we get:

$7.35=-\log[H^+]$

$[H^+]=4.467\times 10^{-8} M\approx 4.5\times 10^{-8} M$

The hydrogen ion concentrations associated with these pH value 7.35 is $4.5\times 10^{-8} M$

2) pH = 7.45

Putting values in above equation, we get:

$7.45=-\log[H^+]$

$[H^+]=3.548\times 10^{-8}M \approx 3.6\times 10^{-8} M$

The hydrogen ion concentrations associated with these pH value 7.45 is $3.6\times 10^{-8} M$ .

8 0

3 years ago

A catastrophic disturbance that resulted in mass extinction marks the boundary of which two eras?

kozerog [31]

The answer might be A

4 0

3 years ago

Read 2 more answers

Which of the following has the most heat energy?

hodyreva [135]

Answer:

Matter exists in three basic states, which are solid, liquid, or gas. Of these, a gas contains the most thermal energy because in a gas the particles...

I hope this helps!

5 0

3 years ago

Read 2 more answers

A chemist measures the amount of iodine solid produced during an experiment. He finds that of iodine solid is produced. Calculat

Dimas [21]

The question is incomplete, the complete question is:

A chemist measures the amount of iodine solid produced during an experiment. He finds that 8.31 g of iodine solid is produced. Calculate the number of moles of iodine solid produced. Round your answer to the correct number of significant digits.

Answer: The number of moles of solid iodine produced is 0.0327 moles

Explanation:

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ......(1)

Given mass of solid iodine = 8.31 g

Molar mass of solid iodine = 253.8089 g/mol

Plugging values in equation 1:

$\text{Moles of solid iodine}=\frac{8.31g}{253.8089g/mol}=0.0327mol$

Hence, the number of moles of solid iodine produced is 0.0327 moles

8 0

4 years ago

An ingredient that dissolves in a solution is called a

Marta_Voda [28]

Try solvent. I hope this helps!!!

3 0

4 years ago