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lara31 [8.8K]
2 years ago
13

What is the pOH of a solution that has a hydronium ion concentration [H3O+] of 8.26 x 10–5 M?

Chemistry
1 answer:
kirill115 [55]2 years ago
8 0

Answer:

9.92

Explanation:

Since we are given the concetration of H+ we can find the ph by taking the negative log and then subtracting the ph from 14 to give us pOH

-log(8.26e-5) = pH= 4.08

pOH= 14-4.08

pOH= 9.92

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Which of the following types of radiation has the greatest ability to penetrate matter
Tcecarenko [31]
You did not specify the types, but I believe the answer would be gamma radiation.
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3 years ago
Balance this chemical equation. Choose "blank" for the box if no other coefficient is needed. Writing the symbol implies "1."
DENIUS [597]

Answer: 3NH_4OH+AlCl_3\rightarrow Al(OH)_3+3NH_4Cl

Explanation: A double displacement reaction is one in which exchange of ions take place.

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

3NH_4OH+AlCl_3\rightarrow Al(OH)_3+3NH_4Cl

4 0
2 years ago
4. A total of 226 J of heat are absorbed as 58.3 g of lead is heated from 12.0oC to 42.0oC. From this data, what is the specific
Zanzabum
C = Q / M * ΔT

Δf - Δi = 42.0ºC - 12.0ºC = 30.0ºC

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C = 226 / 1749

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hope this helps!

6 0
3 years ago
at atmoshperic pressure, a balloon contains 2.00L of nitrogen of gas. How would the volume change if the Kelvin temperature were
Nataly [62]

<u>Answer:</u> The percent change in volume will be 25 %

<u>Explanation:</u>

To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that volume of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

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where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

V_2\text{ and }T_2 are the final volume and temperature of the gas.

We are given:

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Putting values in above equation, we get:

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Percent change of volume = \frac{(2-1.5)}{2}\times 100=25\%

Hence, the percent change in volume will be 25 %

5 0
2 years ago
I need a answer quick. PLEASE<br><br>What is the volume of 2.43 x 1023 molecules of N2 gas at STP?
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I think it is 2485.89.
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3 years ago
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