2 years ago

Use the picture below to answer the question. Comparing Wave A (blue) to Wave B (red), Wave B has a

Chemistry

1 answer:

fenix001 [56]2 years ago

6 0

Answer: B longer wave

Explanation:

because

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2 years ago

If I add water to 100 mL of a 0.15 M NaOH solution until the final volume is 250 mL, what will

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3 years ago

The two naturally occurring isotopes of antimony, 121Sb (57.21 percent) and 123Sb (42.79 percent), have masses of 120.904 and 12

Alex

Answer:

The correct answer is option c.

Explanation:

Formula used to determine an average atomic mass :

$\text{Average atomic mass }=\sum_{i=1}^n\text{(Atomic mass of an isotopes)}_i\times \text{(Fractional abundance})_i$

Mass of isotope Sb-121 = 120.904 amu

Fractional abundance of Sb-121 = 57.21% = 0.5721

Mass of isotope Sb-123 = 122.904 amu

Fractional abundance of Sb-123 = 42.79% = 0.4279

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3 years ago

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a. D

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In a neutral solution, the concentration of H+ is

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3 years ago