Question

Consider the following unbalanced reaction:

C(s) + S8(s) → CS2(l)

How many grams of carbon disulfide will be produced if 8.80 g of C and 17.2 g of S8 are allowed to react completely?

Report your answer to 3 significant figures and do not include units.

Answer 1

do you know what units you use in stoichiometric problems?

Answer 2

in this case g CS2

Answer 3

MOLEES?

Answer 4

nope you ALWAYS use moles

Answer 5

OK

Answer 6

so to solve this problem:

(1) balance the reaction
(2) convert grams of reactants to moles of reactants ...moles=mass/molar mass
(3) determine limiting reactant (whichever one you have less of will determine how much product you can make)
(4) use the coefficients from the balanced equation to find how many moles of product you make
(5) convert to grams ...again using n=m/M

Answer 7

do these and ill help you if you get stuck

Answer 8

im stuck...im trying to convert the grams of the reactant to moles of reactant but im confused

Answer 9

okay, so you know how many grams you have .. do you know each reactants molar mass?

Answer 10

molar mass of C=12.011?

Answer 11

Molar mass of CS2=76.141

Answer 12

okay so use the formula n=m/M

moles = mass / molar mass

find the number of moles ie. divide the mass by the molar mass

Answer 13

so for carbon m=(8.8g)/(12g/mol) = 0.733 mol

Answer 14

OK

Answer 15

Aaron, really good work helping this learner!