List 5 of the 8 characteristics that define something as living
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The value of the given expression up to correct significant figures is .
- The rule that applies for the multiplication and division is :
The least number of significant figures in any number of the problem determines the number of significant figures in the answer.
- The rule that applies for the addition and subtraction is :
The least precise number present after the decimal point determines the number of significant figures in the answer.
Given:
The expression: (23.4m)(14m)
To find:
The answer up to correct a number of significant figures.
Solution
Number of significant figures in '23.4' = 3
Number of significant figures in '14' = 22
The number with the least significant figures is '14' is 2, so the answer will be reported up to 2 significant figures:
Number of significant figures in '330' = 3
The value of the given expression up to correct significant figures is .
Learn more about significant figures here:
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Answer:
6.25e-6 is the value of the equilibrium constant
Explanation:
we have this equation
When at a state of equilibrium,
we have the concentration of Pb^2+ to be 0.01
we have the concentration of Br^- to be 0.025
the equilibrium constant concentration of both pure solids and liquid s are said to be equal to 1
[PbBR2] = 1
such tht
Keq = [Pb^2+] x [Br-]^2
we already know the values of these from the above.
0.01x0.025^2
= 0.01 x 0.000625
= 0.00000625
= 6.25 x 10^-6
= 6.25e^-6