14. Using the average atomic masses given in the inside front cover of this book, calculate the
number of moles of each element in samples
with the following masses.
a. 26.2 g of gold
b. 41.5 g of calcium
c. 335 mg of barium
d. 1.42 1 023 g of palladium
e. 3.05 1 025 mg of nickel
f. 1.00 lb of iron
g. 12.01 g of carbon

There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit

Achemist has dissolved a certain substance in water. the chemist knows that more of the substance could be dissolved into the water before it stops dissolving. therefore

When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —