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3 years ago

What is the pH of a solution with a pOH of 13.75?

Chemistry

1 answer:

alexdok [17]3 years ago

4 0

Answer:

is easy to get more questionable and paste it in the class and then let's go to the class is better for fashion and then let's go to the answer

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What important processes in your body depend on mitosis

PilotLPTM [1.2K]

Mitosis makes new cells and replaces the cells that are old, lost or damaged

3 0

2 years ago

How much heat is required to raise the temperature of a 6.21 g sample of iron from 25.0 oC to 79.8 oC?

telo118 [61]

Answer:

151.1J

Explanation:

Given parameters:

Mass of iron = 6.21g

Initial temperature of iron = 25°C

Final temperature of iron = 79.8°C

Unknown:

Amount of heat = ?

Solution:

The amount of heat require to cause this temperature can be determined using the expression below;

H = m c (T₂ - T₁)

H is the amount of heat

m is the mass

c is the specific heat capacity

T is the temperature

Specific heat capacity of iron 0.444J/g°C

Insert the parameters and solve;

H = 6.21 x 0.444 x (79.8 - 25)

H = 151.1J

5 0

2 years ago

What volume of a 0.295 M nitric acid solution is required to neutralize 24.8 mL of a 0.107 M potassium hydroxide solution

KengaRu [80]

Answer: 9.00 mL

Explanation:

$M_{A}V_{A}=M_{B}V_{B}\\(0.295)V_{A}=(0.107)(24.8)\\V_{A}=\frac{(0.107)(24.8)}{(0.295)} \approx \boxed{9.00 \text{ mL}}$

4 0

1 year ago

A cylinder with a movable piston originally has a volume of 2805 mL and is filled with nitrogen to a pressure of 4.00

Sergio039 [100]

This problem is providing the initial volume and pressure of nitrogen in a piston-cylinder system and asks for the final pressure it will have when the volume increases. At the end, the answer turns out to be 2.90 atm.

<h3>Boyle's law</h3>

In chemistry, gas laws are used so as to understand the volume-pressure-temperature-moles behavior in ideal gases and relate different pairs of variables.

In this case, we focus on the Boyle's law as an inversely proportional relationship between both pressure and volume at constant both temperature and moles:

$P_1V_1=P_2V_2$

Thus, we solve for the final pressure by dividing both sides by V2:

$P_2=\frac{P_1V_1}{V_2}$

Hence, we plug in both the initial pressure and volume and final volume in order to calculate the final pressure:

$P_2=\frac{2805mL*4.00atm}{3864mL}\\ \\P_2=2.90atm$

Learn more about ideal gases: brainly.com/question/8711877

6 0

2 years ago

Which of the following combinations of quantum numbers (n, l, ml, ms) do not represent permissible solutions of the schrodinger

Softa [21]

Option c. 6, -5, -1, 1/2

Because the second quantum number, l, cannot be negative.

The values of l are restricted to the range 0 to n -1, which in this case is 0, 1, 2, 3, 4 and 5.

8 0

2 years ago