385 Answered Questions for the topic stoichiometry

Stoichiometry Chemistry

11/07/14

Why are we multiplying by eleven or why are we not multiplying 4.5 moles of heptane by 22??

Original question: In a particular reaction, 4.5 moles of heptane burn in the presence of oxygen. C7H16 + 11O2 -> 7CO2 + 8H2O How many moles of oxygen will burn?Answer:You have 4.5 moles of... more
Stoichiometry Chemistry

11/07/14

How many moles of oxygen will burn?

In a particular reaction, 4.5 moles of heptane burn in the presence of oxygen.   C7H16 + 11O2 -> 7CO2 + 8H2O How many moles of oxygen will burn?   REACTANTS: Carbon: 7 Hydrogen:... more
Stoichiometry Chemistry Chemistry Lab

10/31/14

Chemistry problem I am stuck! Please help!

If .240 g of an unknown triprotic acid (H3X) requires 18.00 mL of a .500 M NaOH solution for neutralization, what is the molecular weight of the acid? If it is a common phosphorous containing... more

08/22/14

Chemistry Problems

1.) Elemental phosphorus reacts with chlorine gas according to the equation: P4(s)+6Cl2(g)→4PCl3(l) A reaction mixture initially contains 45.09g P4 and 131.1g Cl2.   Once the reaction has... more
Stoichiometry Chemistry Problem

04/19/14

Equal weights of zinc and iodine react to form ZnI2 find the maximum weight ZnI2formed if 1gm of each was taken initially

Equal weights of zinc and iodine react to form ZnI2 find the maximum weight ZnI2formed if 1gm of each was taken initially. Please answer me fast.
Stoichiometry

02/23/14

if 5.67 moles of Fe were produced, how many moles of CO2 would be produced?

given the balanced equation of Fe2O3 + 3CO → 2Fe + 3CO2 If 5.67 moles of Fe were produced, how many moles of CO2 would be produced?
Stoichiometry

01/21/14

i need help with stoichemtry Li3N+3H2O-->NH3+3LiOH

how do you do stoichiometry
Stoichiometry

10/28/13

How many grams of water will be produced from 32 grams of oxygen gas

how do I set up the problem

02/07/13

what's the easiest way to balance chemical equations?

i need help♥
Stoichiometry Chemistry

12/06/12

Can someone please check my work and answers on these two titration problems?

1.)  If 16.45 mL of 0.135 M nitric acid neutralizes 26.0 mL of ammonium hydroxide, what is the molarity of the base? HNO3(aq) + NH4OH(aq) --> NH4NO3(aq) + H2O(l) I used stoichiometry to find... more

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