Assignments & Projects x M. T CHEM 122/124 Spri x O CALCIUM ci /ibiscms/mod/ibis

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Assignments & Projects x M. T CHEM 122/124 Spri x O CALCIUM ci /ibiscms/mod/ibis/view.php?id 3165797 rTVI Print Calculator Periodic Table Question 14 of 28 General Chemistry 4th Edition University Science Books presented by Sapling Learning Name the following hydrate: Na2s 9H20(s) Spelling counts! Are you sure? Your most recent changes to this item may not have been saved. Ahways "Check Answer" to receive Credit. Cancel Contine o Previous 8 Give Up & View Solution 2 Check Answer about us careers partners privacy policy terms of use contact us help

Explanation / Answer

a) Name of Na2S.9H2O is Sodium sulfide nonahydrate

b) - Atomic mass unit (amu) is one twelfth the mass of a carbon. Why? Because the atomic mass of carbon is   12g, thus 1g/mole = I amu.

this is a weighted average
76.700% of Ti = 45.95263g.....0.767x 45.95263g = 35.245g
18.800% of Ti = 47.94795g.....0.189 x 47.94795g = 9.014g
4.500% of Ti = 49.94479g.....0.045 x 49.94479g = 2.247g
total mass = 46.506g/mole= 46.506amu

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