Answer to Question #142038 in General Chemistry for Learner

Question #142038

What is the atomic mass of hafnium if out of every 100 atoms, 5 have mass 176, 19 have mass 177, 27 have mass 178, 14 have mass 179, and 35 have mass 180.0?

Expert's answer

Average atomic mass = 176×0.05 + 177×0.19 + 178×0.27 + 179×0.14 + 180×0.35 = 178.55

Learn more about our help with Assignments: Chemistry

Comments

No comments. Be the first!

Leave a comment

Related Questions

1. 270 g of glucose is added to 1 kg of water. The boiling point of this solution is
2. Calculate the percentage by mass of oxygen in C2H5OH
3. Quantitative observations mass of evaporating dish 42.90g mass of evaporating dish and hydrate 54.7
4. What mass of calcium chloride will be produced from 4.09g of HCl reacting with Ca(OH)2
5. Compute the average atomic mass of gallium, if 60.0% of the gallium atom occurring in nature have ma
6. Based on the volume of a titrant needed to reach the 2nd equivalence point and the mass of the na2Co
7. Competitive downhill ski racers are subjected to severe wind chill, as are average skiers and snowbo

Who Can Help Me with My Assignment

There are three certainties in this world: Death, Taxes and Homework Assignments. No matter where you study, and no matter…
How to Finish Assignments When You Can’t

Crunch time is coming, deadlines need to be met, essays need to be submitted, and tests should be studied for.…
How to Effectively Study for a Math Test

Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…