Answered

IDNLearn.com offers a collaborative platform for sharing and gaining knowledge. Ask anything and receive immediate, well-informed answers from our dedicated community of experts.

How many atoms are there in 90.2 grams of selenium?


Sagot :

Sabrina211idn
First calculate the moles of selenium by multiplying the mass x molar mass
90.2 × 78.96 = 7122.2 moles

Number of moles multiplied by avogadros number gives number of atoms
7122.2 × 6.022 × 10^{23} = 4.289×10^{27} atoms
We appreciate your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. IDNLearn.com is your source for precise answers. Thank you for visiting, and we look forward to helping you again soon.