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Calculate the molar solubility of barium fluoride in water at 25 degrees celsius. The sp constant for BaF2 at this temperature is 1.0x10^-6.
What is the molar solubility of BaF2 in 0.15M NaF at 25 degrees celsius? Compare the solubility in this case with that of BaF2 in pure water.
If 5.08 x 10^ 3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?2 NH3(g) 3 O2(g) 2 CH4(g) → 2 HCN(g) 6 H2O(g)
How many moles of water will be formed from 0.2 mole of CH4 reacting with enough O2. In this reaction CH4+2O2--->CO2+2H2O
Which of the following statements about natural radioactive emissions is incorrect?
Suppose that you developed your own new temperature scale, denoted oN. You chose 30.0oN as the temperature of freezing water and 280oN as the temperature of boiling water at 1.0 atm pressure.
the mass of the flask is measured when the outside of the flask is wet. However in part B.3 the outside of the flask is dried before its mass is measured.
HCL is a significant component of gastric juice. what is the concentration of chloride ion in gastric juice at pH=1.27?
How many grams of carbon dioxide would be obtained from the burning of 92g of ethanol in oxygen?
Using a flow diagram, show the separation of a mixture containing p-bromoacetanilide, N-cyclopentyl-N-methyl-N-propylamine (N means the group is attached to the nitrogen of the amine) and m-nitrophenol. Specify the organic solvent and aqueous
Calculate the amount of heat required to completely sublime 23.0g of solid dry ice (CO2) at its sublimation temperature
calculate the concentration in molarity of a NaOH solution if 25.0 ml of the solution are needed to neutralize 17.4 ml of a .312 M HCl solution.
Ethyl alcohol is produced by the fermentation of glucose, C6H12O6. Given that the enthalpy of formation is -277.7 kJ/mol for C2H5OH(l) and -393.5 kJ/mol for CO2(g)
34.62 mL sample of .1510 molar NaOH was needed to completely neutralize 50 mL of an H2SO4 solution. what is the concentration of the origional sulfuric acid solution?
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