Questions asked by ChemStudent

• Back to user's profile
• Gaseous chlorine atoms would then react with gaseous ozone (#O_3#) to form gaseous chlorine monoxide and gaseous oxygen. Write the balanced chemical equation for this reaction. How do I do this?
  
• What is the mol solute and molarity of #KNO_3# which has the solute mass 22.5 g and volume solution 125.0 mL?
  
• What is solute mass and mol solute of #NaHCO_3# which has the volume solution 250.0 mL and molarity 0.100 mol/L?
  
• What is the mol solute and volume solution of #C_12H_22O_11# which has the solute mass 55.38 g and the molarity 0.150 mol/L?
  
• What are the oxidation numbers of #4HNO_3 (aq)#?
  
• Balance the redox equation occurring in acidic solution. #H^+(aq)+Cr(s)-> H_2(g)+Cr^(3+)(aq)#? Please help, thanks.
  
• The weak base ammonia (NH3) accepts a proton (H+) from water to form a basic solution. What is the concentration of OH– ions in a 0.75 mol L–1 NH3 solution?
  
• Balance the following redox equation and determine how many electrons were transferred. #Zn(s) + Ni^(3+) (aq) → Zn^(2+) (aq) + Ni(s)#?
  
• In this reaction, #4.58 L# of #O_2# were formed at #745 mm Hg# and #308 K#. How many grams of #Ag_2O# decomposed? #2 Ag_2O(s)# → #4 Ag(s)# + #O_2(g)#
  
• Calculate #[H_3O^+]# for a solution that has #pH = 1.76#?
  
• How does #10^(–4.80) = 10^(log[H3O+])# become #10^(–4.80) = [H_3O^+]#? Please see image below, under the heading #Method 2: 10^x Function#.
  
• How can we complete the table below? Please provide the working out for everything because I want to clearly understand everything.
  
• What are substitution reactions? How can we describe it in one sentence?
  
• When bromine is added to an alkane, why does the solution become colourless? When bromine is added to an alkene, why does the solution remain brown?
  
• Why are single bonds length longer than double and triple bonds? Why are triple bonds the strongest?
  
• Why are low molecular weight alcohols soluble in water? And why does the water solubility of alcohols decrease with the increasing size of the hydrocarbon group? Can you explain this?