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valentinak56 [21]
3 years ago
12

A photon has a wavelength of 750 no. What is the energy in joules

Chemistry
1 answer:
zhuklara [117]3 years ago
8 0

Answer:

750

Explanation:

750

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The molarity of a 2 liter aqueous solution that contains 222.2 grams of dissolved calcium chloride ( CaCl2), expressed with two
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The answer to your question is 1 M

Explanation:

Data

Molarity = ?

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Process

1.- Calculate the molar mass of CaCl₂

CaCl₂ = 40 + (35.5 x 2) = 40 + 71 = 111 g

2.- Calculate the moles of CaCl₂

                    111g of CaCl₂ ---------------- 1 mol

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                      x = (222.2 x 1) / 111

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3.- Calculate the Molarity

Molarity = moles / Volume

-Substitution

Molarity = 2/2

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Molarity = 1

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