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ziro4ka [17]
3 years ago
10

Calculate the ph for a 0.3 m solution of (a) sodium leucinate

Chemistry
1 answer:
timofeeve [1]3 years ago
5 0
To get the pH value for a certain aqueous solution, the concentration of the hydronium ions (in moles per liter) should be know. This concentration is also known as the "molarity".
pH = -log [H3O+]

We are given that the molarity = 0.3 m
Therefore,
pH = -log[0.3] = 0.5228787
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B- How many electrons does sodium have?
ziro4ka [17]

Answer: sorry I’m late but it is 11 electrons

Explanation:

7 0
3 years ago
In the force equation, which two variables have a direct relationship? Which two have an indirect/inverse relationship?
zhuklara [117]

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if the dependent and independent variable go up its direct but if one of them goes up and another goes down its indirect

Explanation:

for example the more mass an object has the less speed it has that's indirect but the less salt you add to water the less time you have to wait for it to boil

i hope this was useful

4 0
3 years ago
Is this correct pls answer as soon as possible
Lunna [17]

Answer: Yes

Explanation:

I just know it is.

4 0
3 years ago
If people are blind can they dream
Igoryamba

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8 0
3 years ago
Read 2 more answers
This stadium can hold 100,000, or 1 x 105, people. The number of atoms in a grain of iron is about 1 x 1018. Would you need 1 x 
nata0808 [166]
<h3>Answer:</h3>

1 x 10^13 stadiums

<h3>Explanation:</h3>

We are given that;

1 stadium holds = 1 × 10^5 people

Number of iron atoms is 1 × 10^18 atoms

Assuming the stadium would carry an equivalent number of atoms as people.

Then, 1 stadium will carry 1 × 10^5 atoms

Therefore,

To calculate the number of stadiums that can hold 1 × 10^18 atoms we divide the total number of atoms by the number of atoms per stadium.

Number of stadiums = Total number of atoms ÷ Number of atoms per stadium

                                  = 1 × 10^18 atoms ÷ 1 × 10^5 atoms/stadium

                                   = 1 × 10^13 Stadiums

Thus, 1 × 10^18 atoms would occupy 1 × 10^13 stadiums

7 0
3 years ago
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