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Where in a sigma bond is the electron density the greatest? Where in a pi bond is the electron density the greatest?
A 75.0-mL volume of 0.200 NH3 is titrated with 0.500 M HNO3 . Calculate the pH after the addition of 19.0 mL of HNO3
A 22 kg child slides down a 2.5-m -high playground slide. She starts from rest, and her speed at the bottom is 1.0 m/s . What is the change in the thermal energy of the slide and the seat of her pants?
Does soap work as well on ink as it does on grease? Why or why not? What other clothing stains might you expect to remove with soap?
The solubility product of PbBr2 is 8.9*10^-6. Determine the molar solubility in 2M KBr solution
calculate the ph of a solution of calcium carbonate having [calcium ion]=1.3x10^-4M,[carbonate ion]=3.8x^10-5M and [HCO3]=8.8X10^-5M
A 45.5 g sample of copper at 99.8 degrees C is dropped into a beaker containing 152 g of water at 18.5 degrees C. What is the final temperature when thermal equilibrium is reached?
Separation of acetone from water by using MIBK - How much MIBK must be used if the final acetone concentration in the water-rich phase is 5 wt%?
A sample of hydrochloric acid contains 7.05 x 10-3 mol of hydrogen chloride in 50cm3 of solution calculate the concentration in mol dm-3 of this hydrochloric acid
question if a system has 5.00 times 102 kcal of work done to it and releases 5.00 times 102 kj of heat into its
When 0.800 g of Ca metal is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 13C is observed.Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL.
calculate the probability of occupying the first excited vibrational level at 260K. Would you expect the probability for occupying the first-excited vibrational level for OD (v=2721cm^-1) to be greater or less than for OH
Problem- A student added three mL of KMnO4 instead of the three drops of 0.1 M KMnO4. How will these affect this results? What do you think will be observed in each solution
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