All the chemists out there.. can you answer this?

Question

Moley is a mole who enjoys guacamole. To make lots of guacamole, moley sets out to buy some avocados. He is going to buy 1.3 moles of avocados. How many avocados is that?

Answer: 1.3 miles * 6.02*10^23 (avogadro's number)
=7.83*10^23 Avocado's

Alright this was just introduction. Now comes the fun part!

a)If each avocado has a density of 0.89 grams per cm^3, and each avocado has a mass of 118 grams, how much volume in cm^3 does Moley's collection of avocados consume?

b)If moley puts all his guacamole in to a hemispherical bowl, how big will the radius of his bowl need to be to fit all the guacamole in it (assume the guacamole's total volume is the same as the volume of the avacados).

c) If Moley's avocados are 8.7 cm long and the avocados were stacked end on end, how many times would the stack of avocado's stretch from the Earth to the sun? (Distance from the eart to the sun is 93 million miles; 1 cm = 0.00001KM and .621 miles = 1 Kilometer)

d) Moley decides to buy some napkins too. He buys 3.189 moles of napkins (his friends are messy guacamole eaters). How many napkins is that? if napkins are sold in packs of 300 each, how many packs does he need?

e) Once the guacamole party starts, Moley realizes that he is going to need some liquid to satiate his mile friends -- chips and guacamole make a mole thirsty! Moley walks over his hydrogen and oxygen atom supply machine. He has 8.56*10^31 hydrogen atoms and a limitless supply of exygen atoms. He knows to make a water molecule, he needs two hydrogen atoms for every oxygen atom. How many water molecules can he make? How many moles of water can he make?

f) There are about 19mL in one mole of H2O. If moley has 89,200,491 liters of water, how many moles does he have?

The person with most correct answers wins 10 points... and you dont have to answer all these... you can always answer just 1 part for 2 points :)

Answer 1

Haha, I should NOT have spent all that time answering that question...but i did. Here are my answers (significant figures aside):

a) 1.04x10^26 cm^3
b) radius = 367,171,023.1 cm
c) 4.55x10^11 trips (if one 'trip' is 93,000,000 miles)
d) 6.38x10^21 packs
e) 4.28x10^31 water molecules
71,096,345.5 moles of water
f) 4,694,762,684 moles

so, *laughs sheepishly* how'd I do?