Answered

IDNLearn.com offers a user-friendly platform for finding and sharing knowledge. Ask your questions and receive reliable, detailed 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 greatly appreciate every question and answer you provide. Keep engaging and finding the best solutions. This community is the perfect place to learn and grow together. Your questions find answers at IDNLearn.com. Thanks for visiting, and come back for more accurate and reliable solutions.