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yKpoI14uk [10]
3 years ago
15

What is the pH of a solution with a hydrogen concentration of [H+] = 1 x 10-4 M?

Chemistry
1 answer:
chubhunter [2.5K]3 years ago
5 0

Answer:

4

Explanation:

pH=-log(H3O+)

- Hope that helps! Please let me know if you need further explanation.

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Two processes are described below:
UNO [17]

Answer:

i would say D i just did this but i kinda forgot so sorry if im wrong or A

Explanation:

4 0
2 years ago
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Convert 213.62 grams of xenon gas at STP to L.
jolli1 [7]

Answer: The coefficient is 3.645

The exponent is 1

There are 4 significant digits

The rightmost significant figure is 5

Explanation:

Scientific notation is defined as the representation of expressing the numbers that are too big or too small and are represented in the decimal form with one digit before the decimal point times 10 raise to the power.

For example : 5000 is written as 5.0\times 10^3

According to avogadro's law, 1 mole of every gas contains avogadro's number 6.023\times 10^{23} of particles, occupy 22.4 L at STP and weighs equal to its molecular mass.

131.29 g of Xe occupy = 22.4 L at STP.

Thus 213.62 g of Xe occupy = \frac{22.4}{131.29}\times 213.62=36.45L at STP.

Scientific notation = 3.645\times 10^1L

The coefficient is 3.645

The exponent is 1

There are 4 significant digits

The rightmost significant figure is 5

4 0
2 years ago
How many neutrons are in Br-85
Travka [436]
There are 45 neutrons
3 0
2 years ago
The motion of a toy truck was investigated. The total distance covered vs. time was recorded in the table.
DIA [1.3K]

Answer:

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How many protons are in the nucleus of an atom with an atomic number of 15
kykrilka [37]

Answer:

15 protons

Explanation:

The atomic number always equals the number of protons inside the nucleus, so if the atomic number is 15, that means 15 protons are present.

4 0
2 years ago
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