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Lelechka [254]
2 years ago
9

Pter 4 Practice Quiz

SAT
1 answer:
jekas [21]2 years ago
8 0

Answer:

3

Explanation:

9 month pregnancy is grouped into 3, 3 month trimesters

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The equation for the ph of a substance is ph = –log[h+], where h+ is the concentration of hydrogen ions. What is the approximate
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The pH of the substance is 3.3 which is acidic.

<h3>What is pH?</h3>

The pH of a substance or solution is referred to the degree of acidity or alkalinity of that substance. It is measured on a scale of 0 -14.

  • pH <7 are termed acidic
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  • pH =7 are termed neutral

Given  the concentration of hydrogen ions as 5. 0 × 10–4 moles per liter,we  use the formulae

ph = –log[h+]

plugging in thge value of  h+ as 5. 0 × 10–4 moles per liter we have:

pH = –log{5. 0 × 10–4 ]

pH=3.3

See here for calculation of pHs: brainly.com/question/26430079

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Dovator [93]
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Which term is defined by the amount of a certain isotope that occurs in a natural sample of an element?
vodomira [7]

It should be noted that ion abundance defined by the amount of a certain isotope that occurs in a natural sample of an element.

<h3>What is ion abundance?</h3>

The ion abundance  can be explained as the sum of the intensities within the isotope boundaries.

Some strategy are ben used when calculating the abundance of that compound ion and it defined by the amount of a certain isotope in natural sample.

Learn more about ion abundance at;

brainly.com/question/25605883

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