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What is the difference between non-equivalent and non-equivalent and diastereomers hydrogens, when assigning protons in NMR?
How many grams of water H20 are in a sample that has 1.2 *10^(23) atoms of hydrogen
Determine How many moles of Fe 3 O 4 could be formed if 9.00 mol iron react with 12.00 mol Oxygen and determine How many grams of methane is required to form 45.5g CHcl 3 ?
A fellow student is having trouble understanding polar covalent bonds, non-polar covalent bonds, and ionic bonds. Describe how you would help your the fellow student
What is the solubility, in milligrams/ mL of BaF2 (Ksp=1.8 x 10^-7) in a solution containing 5.0 mg/mL of KF
A buffer is prepared by mixing 615 mL of 0.50 M formic acid, HCHO2, and 385 mL of 0.50 M sodium formate, NaCHO2. Calculate the pH.
The enthalpy of vaporization of water at 373 K and 1 bar is 40.7 kJ/mol and the molar heat capacities are 75.3 J/(mol K) for liquid and 33.6 J/(mol K) for gaseous water. Find the enthalpy of vaporization of water at 273 K and 1 bar.
at a particular temperature k 4.0 x 10-7 for the reaction n2o4g ---gt 2no2g. in an experiment 1.0 mol n2o4 is placed
which of the compounds of H2C204, Ca(OH)2, KOH, and HI behave as acids when they are dissolved in water
Assuming the mixture has the same specific heat (4.184J/goC) and density (1.00 g/cm3) as water, calculate the heat (in J) transferred to the surroundings
A thief uses a bag of sand to replace a gold statue that sits on a weight sensitive, alarmed pedestal. The bag of sand and the statue have exactly the same volume, 1.70L. (assume that the mass of the bag is negligible.)
20.0ml of 0.150M Zn(NO3)2 are mixed with 20.0ml of 1.00 x10-4M Na2S. Calculate the amount of milligrams of ZnS (s) that will precipitate. (Ksp = 1.6 x10-24)
If the flask has a volume of 0.150 L, what is the minimum mass of PH3BCl3(s) that must be added to the flask in order to achieve equilibrium?
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