Explore BrainMass
Share

Reaction Intermediates and Mechanisms

Combustion of Methane for Stoichiometry

Methane has a formula CH4. When burned in air, it produces carbon dioxide and water. A)T he balanced equation for the reaction? B) How many moles of water could be formed using 2.5 mol of methane? C) How many moles of carbon dioxide could be produced from 0.90 mol of oxygen gas?

Reaction in an Automobile Airbag

The reaction in an automobile airbag is: 2NaN3(s) 2Na(s) + 3N2(g) If 80.0g of NaN3 reacts, what volume of N2(g) is produced at 25oC and a pressure of 1.00 atm.?

Nitrogen Dioxide in Sunlight

What happens to nitrogen dioxide, NO2, in sun light? Write the reaction equation for this process. Estimat the value of Kp for this reaction at 25 degrees C?

Net Ionic Equation of Sodium Hydroxide

Write a net ionic equation for the reaction occuring when a small amount of sodium hydroxide is added to a NaNOsubnumber2/HNOsubnumber2 buffer. show all work and steps, thanks

Minimum Concentration Required for Reaction

Calculate the minimum concentration of Cr^3+ that must be added to 0.095 mol/Litre NaF in order to initiate a precipitate of chromium (lll) flouride. (For CrF3, Ksp=6.6x10^-11).

What is the limiting reagent?

In the lab you measure 0.65 g of aluminum foil and place it in a beaker under the hood. Very carefully you measure 2.0 mL of Br2 ( 2 needs to be subscript) (density 2.928 g/mL), aslo under the hood, and pour it into the beaker with the aluminum foil. A really cool reaction occurs. What is the limiting reagent? Show ALL necessary

Molecular/Ionic Equation

If a reaction occurs between the 2 species write the molecular equation and the net ionic equation, otherwise indicate no reaction. 1) Barium chloride and sodium sulfate 2) Silver nitrate and potassium phosphate 3) Ammonium bromide and sodium carbonate Please show all work including if it is aqueous or a solid plus the c

General Chemistry Balanced Equations

Hi Thanks for your help with this word equation is sulfer dioxide + oxygen -----sulfer trioxide Using chemical symbols, write a balanced equation for the above reaction using the lowest possible whole number coefficents, include after the chemical formulae the symbol state of the compound. The other query is A island

Balancing an Equation Element

Which is correctly balanced? A. H3PO4 + NaOH --> Na3PO4 + 3H2O B. 2SO2 + O2 --> 2SO3 C. 2Na + 2H2O --> H2 + 2NaOH D. CS2 + 2H2 --> 2H2S + CH4

Spontaneous reaction

Questions 12-13: The spontaneous reaction that occurs when the cell above operates is 2 Ag^+ + Cd(s) -> 2 Ag(s) + Cd^2+ a) voltage increases b )voltage decreases by remains but remains above zero c) voltage becomes zero and remains remains at 0. d) no change in voltage occurs. e) direction of voltage change cannot be pr

Select correct balanced net ionic equation

Select the correct balanced net ionic equation for each of the following reactions, occuring in aqueous solution. Input the associated letter labels, in order (i)-(iii), no spaces, no commas. e.g. GBF (i) 2HCl + Mg --> H2 + MgCl2 (ii) CuSO4 + CaCl2 --> CuCl2 + CaSO4 (iii) Cu(NO3)2 + Ni --> Cu + Ni(NO3)2 A. CuSO4 +

Ionic equations

1.) What is the net ionic equation for the reaction of AgBr with a strong acid? 2.) What is the net ionic equation for the reaction of NaCl with a strong base?

Second Order Reaction

For the second order reaction below, the initial concentration of A is 1.34M. If k=7.61x10(exponent negative 4) seconds(exponent negative 1), what is the concentration of A after 18.3 minutes? 2A-->B rate=k[A](exponent2)

Concentration

For the second order reaction below, the concentration of A after 125 seconds is 0.0722M. If k=9.11x10(exponent negative 2) seconds(exponent negative 1), what is the initial concentration of A? 2A-->B

Identifying a catalyst in a reaction.

The elementary steps for the catalyzed decomposition for dinitrogen monoxide are shown below. Identify the catalyst. NO(g)+N2O(g)--->N2(g)+NO2(g) 2NO2(g)-->2NO(g)+O2(g)

Predicting Solubility Reactions

Attached you will find a table listing the chemicals I will be mixing in lab next week. I would like to know the reactions between the solutions. Once I have these reactions in a table, I will be able to mix unknown solutions, and identify the unknowns based on the table I will have in advance. Below is the abbreviations I ha