[posdnuos]

Question 2  1 points    Save   
  In the following reaction, how many grams of AlCl3 would you expect to produce if 0.15 moles of HCl was reacted with exess Al

 
   


   Question 3  1 points    Save   
  What is the molarity of 70.15 mL aqueous solution containing 3.3 g of Potassium iodide? 
   


   Question 4  1 points    Save   
  Aluminum and oxygen react according to the unbalanced equation below. In a certain experiment, 8.279 moles of Al was reacted with excess oxygen, how many grams of product would you expect to obtain?

Al + O2 ==> Al2O3 (unbalanced)

 
   


   Question 5  1 points    Save   
  Calculate the mass, in grams, of 0.754 mol of carbondioxide. 
   


   Question 6  1 points    Save   
  Please balance the reaction below
 
If 13.85 g of NaOH was reacted with 13.33 g of H2SO4, how many grams of water would be produced. (Hint What is the limiting reagent?) 
   


   Question 7  1 points    Save   
  How many moles of H2O (g) are produced when 4.34 mol O2 (g) are consumed?


 
   


   Question 8  1 points    Save   
  If you expected to get 9.23g of HCl from a chemical reaction and only produced 9.18g, what is the percent yield of your reaction? 
   


   Question 9  1 points    Save   
  What coefficient is required for H2SO4 to balance the following equation?

 
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   Question 10  1 points    Save   
  Benzene and bromine react to form bromobenzene, as represented by the equation below. If 8.79 g of benzene were reacted with 13.42 g of bromine, how many grams of the non-limiting reagent is unreacted? (Hint What is the limiting reagent?)
 

thanks for any help

[Think2Much4UserNames]

Question 2: What is the balance equation of $$ \mathrm{AlCl}_3 /$$ and HCl? Write the balance equation first
 
Question 3: What is the amu of potassium iodide? 3.3g/amu = mole
                 Molarity = volume/moles

Question 4: Balance the unbalanced equation first, and then use stoichiometry

Question 5: Well...how many grams is one mole of $$ \mathrm{CO}_2 /$$?

Question 6: NaOH + H2SO4 > H20 + NaSO4...balance yourself

Question 7: What is the balanced equation of oxygen producing water?

Question 8: First, what is the percent yield of a reaction?
                 Find the formula for percent yield

Question 9: Where's the following reactions?

Question 10: Limiting reagent is the reactant that is used up while the non-limiting is not
                  Good way to find the answer is find the formula of benzene, bromine and bromobenzene, and write them in the form of a balanced equation.


Have a nice day!

[Borek]

NaSO4

Typo?