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2 years ago

7

How does one calculate the pH of a solution? O A. The pH is the product of [H+] and [OH-]. O B. The pH is the negative log of [O

H-]. O c. The pH is the log of [H+). D. The pH is the negative log of [ht].

1 answer:

blagie [28]2 years ago

8 0

Answer:

I believe it is A

Explanation:

pH = -log[H+] and pOH = -log[OH−].

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Help me please!!!!!!!

tatyana61 [14]

Answer:

The answer is A

Explanation:

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2 years ago

You conduct an experiment in which you measure the temperature (T) and volume (V) of a mysterious sphere of gas at several diffe

____ [38]

Volume of the gas is 525 L.

<u>Explanation:</u>

It is given that the volume of the gas divided by the temperature is 1.75.

V/T = 1.75

As per the Charles law, volume is proportional to the temperature.

V ∝ T

V/T = constant

Now we have to find V, and T is given as 300 K.

So plugin the values as,

V/300 = 1.75

Rearranging the equation to get V as,

V = 1.75×300

= 525 L

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3 years ago

Suppose a giant meteor smashes into the Earth and wipes out the majority of life. Describe how succession would help an ecosyste

joja [24]

Succession would help over time because new things will appear after

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3 years ago

If 1,079.75 Joules of heat are added to 77.75 grams of water, by how many degrees Celsius would the water increase? Assume water

djyliett [7]

Answer:

If 1,079.75 Joules of heat are added to 77.75 grams of water, by 3.32 degrees Celsius the temperature of water will increase

$\Delta T=3.32 C^{0}$

Explanation:

$q = mC\Delta T$

Here , q = heat added / removed from the substance

m = mass of the substance taken

$\Delta T$ = Change in temperature

C = specific heat capacity of the substance

In liquid state the value of C for water is :

$4.18 J/gC^{0}$

Given values :

q = 1079.75 J

m = 77.75 gram

Insert the value of C, m , q in the given equation

$q = mC\Delta T$

on transposing ,

$\Delta T=\frac{q}{mC}$

$\Delta T=\frac{1079.75}{77.75\times 4.18}$

$\Delta T=3.32 C^{0}$

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3 years ago

If an atom has 43 electrons, 50 neutrons, and 43 protons, what is it's approximate atomic mass? what is the name of this element

Flauer [41]

I believe the answer to your question would be Fluorine. I hope I answered your question, my friend. :)

4 0

3 years ago