4 years ago

13,000. cm has how many significant figures?

Chemistry

2 answers:

Svet_ta [14]4 years ago

5 0

Answer:

since there is a decimal point at the end, they are all significant figures so the answer is 5

natta225 [31]4 years ago

3 0

Answer:

its 5

Explanation:

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nalin [4]

Answer:

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Explanation:

Step 1: Given data

Concentration of the base (Cb): 0.300 M

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Step 2: Write the dissociation equation

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Step 3: Calculate the concentration of OH⁻

We will use the following expression.

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We will use the following expression.

$pOH =-log[OH^{-} ]= -log(2.3 \times 10^{-3} M) = 2.6$

Step 5: Calculate the pH

We will use the following expression.

$pH+pOH=14\\pH = 14-pOH = 14-2.6 = 11.4$

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