3 years ago

The mass number of an atom is determined by ___.

Chemistry

1 answer:

Reika [66]3 years ago

3 0

2: protons and neutrons

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3 years ago

The complex [FeSCN]2+ has an absorptivity of 6.14×10−2 L/(mg⋅cm) at a wavelength of 580 nm. The transmittance of a solution samp

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Answer:

4.36 ppm

Explanation:

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A = ε*l*C

It is usually used with molar concentrations but given that the given absortivity is in ppm terms and the answer is also in ppm, we can simply use the given value.

0.268 = 6.14x10⁻²L·ppm⁻¹ * 1.00 cm * C

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3 years ago