Question

elenium dichloride, SeCl2, has a molar mass of 149.86 g/mol. What is the mass in grams of 0.195 moles of SeCl2? Use the common abbreviation for the units.

Answer 1

Selenium chloride has a molar mass of 149.86 g/mol. The mass of selenium dichloride in grams is 29.22 grams.

What is mass?

Mass is the quantity of matter of a physical body.

The molar mass is given 149.86 g/mol

The number of moles is 0.195

By the formula of molar mass

$\rm Molar\;mass = \dfrac{mass}{number\;of\;moles} \\\\\rm mass = molar mass \times number\;of\;moles\\\rm mass =149.86 \times 0.195 = 29.22 g$

Thus, the mass of selenium dichloride in grams is 29.22 grams.

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