Start Discovering Solved Questions and Your Course Assignments
TextBooks Included
Active Tutors
Asked Questions
Answered Questions
Calculate the pH for an aqueous solution of acetic acid that contains 2.15x10^-3M hydronium ion.
Could a fluorescent organic compound be mixed with the silica gel to be used as a visualizing aid in place of ZnS
What is the molar mass of the unknown gas. Elemental analysis of the unknown gas from Part A revealed that it is 30.45% N and 69.55% O. What is the molecular formula for this gas.
The student then titrates the oxalic acid solution with her sodium hydroxide solution. When the titration reaches the equivalence point, the student finds she has used 0.1265 L of sodium hydroxide s
What amount of HCl gas must be added to 1.00 L of a buffer solution that contains [acetic acid] =2.0 M and [acetate]=1.0 M in order to produce a solution with pH =4.24
The boiling point of a certain pure liquid is 53.0 C and the enthalpy of vaporization is 32.7 kJ/mol at this temperature. The entropy of vaporization for this liquid is: in J/K mol
The distance between layers in a crystal is 265 pm. X rays are diffracted from these layers at an angle of 20.1°. Assuming that n = 4, calculate the wavelength of the X rays in nm.
The biologist estimates she will need 5100 L of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmosp
Considering the two resonance structures of the conjugate base of saccharin, which atom (N or O) bears more of the negative charge. explain why.
At 25 degrees Celsius, by what factor is the reaction rate increased by a catalyst that reduces activation energy of the reaction by 1.00 kJ/mol
Calculate the root mean square (rms) average speed of the atoms in a sample of xenon gas at 0.11 atm and -37C.
Is the reaction of iodoethane with sodium saccharin a SN1 or SN2 reaction. Explain why
6Li(s) + N2(g)------ 2Li3N(s) a, What is theortically yield of Li3N in gram when 12.1gm of Li is heated with 33 gm of N2? b, If actual yield of Li3N is 6.09g what is the percent yield of reaction
Consider the decomposition of ammonium nitrite: NH4NO2 yields to N2 + H2O. What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in
Write balanced equations for the reactions pf phenylmagnesium bromide and trityl fluoborate with water
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00×10^?2 M . The diluted solution is then placed in a spray bottle for application on th
NO(g) + O2(g)-------- 2NO2 0.85 mol of NO is mixed 0.494 mol of O2 Calculate the number of moles of NO2 produced and Limiting reactant
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 17.0g of luminol into a total volume of 75.0 mL of H2O. What is the molarity of the stock solution of lu
Element phosphorus occurs as tetratomic molcules P4. what mass of chlorine gas needed to react completely 963 gm of phospheras to form phospheras pentachloride
1.35 mol of N2 at 19 deg C, 6.35 bar undergoes a transformation to the state described by 210 deg C and 1.90 bar. Calculate deltaS if Cp,m*K*mol/J = 30.81 - 11.87*10^-3T/K + 2.3968*10^-5T^2/K^2 - 1
What concentration should you make your stock solution of vincristine in order to make this 5uL addition?
Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction of CaCO3(s) With a strong acid.
Sodium carbonate (Na2CO3rm Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 3.02×103kgkg of sulfuric acid solutio