29. Beetles undergo a complete change during their growth and development. This process
1 answer:
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Answer:
M
Explanation:
Concentration of = 0.020 M
Constructing an ICE table;we have:
Initial (M) 0.020 0.40 0
Change (M) - x - 4 x x
Equilibrium (M) 0.020 -x 0.40 - 4 x x
Given that:
Since x is so small; 0.40 -4x = 0.40
Then:
M
Answer:
1.375%
Explanation:
Percent Error = measured value - accepted value/ accepted value x 100
Measured Value: 15.78
Accepted Value: 16.00
Work:
* 100
* 100 = -1.375
You cannot have a negative percentage. Therefore the answer is 1.375%