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olya-2409 [2.1K]
3 years ago
9

A period of the periodic table ends with the highest energy level of an element's ators having?"

Chemistry
1 answer:
andrey2020 [161]3 years ago
7 0

Answer:

the last period. i think has the largest energy level

Explanation:

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How many grams of methionine (MW = 149.21) are needed to make 20 mL of a 150 mM solution?
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Answer:

0.45 g

Explanation:

Step 1: Given data

  • Molar mass of methionine (M): 149.21 g/mol
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Step 2: Calculate the moles of methionine (n)

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n = C × V

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