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Phoenix [80]
3 years ago
12

Estimate the volume of the football. Compare the football to the table tennis balls by dragging the football over the

Chemistry
2 answers:
faltersainse [42]3 years ago
6 0

4,300..

<h2 /><h2 /><h2><em><u>Hope</u></em><em><u> </u></em><em><u>this</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em><em><u /></em><em><u>.</u></em><em><u>.</u></em></h2>

velikii [3]3 years ago
3 0

Answer:

4,300

Explanation:

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Is this statement true or false? Growth is caused by cells in your body dividing and making new cells.
goblinko [34]

Answer:

true

Explanation:

4 0
3 years ago
"acid is responsible for the odor in rancid butter. a solution of 0.25 m butyric acid has a ph of 2.71. what is the ka for"
Salsk061 [2.6K]

Answer:- The Ka for the acid is 1.53*10^-^5 .

Solution:- In general, monoprotic acid could be represented by HA. The dissociation equation for the ionization of HA is written as:

HA(aq)\rightarrow H^+(aq) + A^-(aq)

Now, we make the ice table for this equation as:

HA(aq)\rightarrow H^+(aq) + A^-(aq)

I 0.25 0 0

C -X +X +X

E (0.25 - X) X X

where, I stands for initial concentration, C stands for change in concentration and E stands for equilibrium concentration.

X is the change in concentration and from ice table it's same as the concentration of hydrogen ion that is calculated from given pH.

Ka = [H^+][A^-]\frac{1}{HA}

Where, Ka is the acid ionization constant. Let's plug in the values.

Ka = \frac{X^2}{0.25-X}

Let's calculate the value of X first using the equation:

pH = -log[H^+][/tex]

on taking antilog ob above equation we get:

[H^+]=10^-^p^H

[H^+]=10^-^2^.^7^1

[H^+] = 0.00195

So, X = 0.001195

Let's plug in this value of X in the equation:-

Ka=\frac{(0.00195)^2}{0.25-0.00195}

Ka=1.53*10^-^5

So, the value of Ka for butyric acid is 1.53*10^-^5 .

8 0
3 years ago
Read 2 more answers
How many joules are needed to warm 675 grams of water (specific heat= 4.186 J/g degrees Celsius) from 12 degrees Celsius to 85 d
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85-12 = 73 degrees needed
4.186 J/degree Celsius, so 
73 degrees * 4.186 J/degree = 305.578 J to raise 1 gram 73 degrees
there are 675 grams, so 305.578 * 675 = 206265.15 J

2.06 x 10^5 J are needed
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3 years ago
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( BRAINLIEST)<br> Name the Salt formed by Sulfuric acid
mars1129 [50]

Answer:

sulfuric acid produces sulfate salts

please make me brainliest

5 0
2 years ago
Which sentences describe disadvantages of burning fossil fuels instead of using hydrogen fuel cells?
bixtya [17]
The last option, fossil fuels are non-renewable sources.
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3 years ago
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