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If you are given a stock concentration of 0.00099 M in 0.5 H2SO4 of potassium dichromate. Then dilute 5 mL of potassium dichromate with 20 mL of H2SO4. What is the concentration
The heat capacity of the calorimeter was 15.7J/K. The final temperature in the calorimeter was 32.4 degree C. What is the specific heat capacity of the mineral?
Menthol is a crystalline substance with a peppermint taste and odor. When 1.65 g of menthol is dissolved in 25.0 g of cyclohexane, the freezing point of the solution is lowered by 8.78 °C. The freezing point and Kf constant for cyclohexane can ..
What is the magnitude of the partial positive and partial negative charges in the HBr molecule? (1D = 3.36 × 10-30 C m; 1e- = 1.6022 × 10-19 C; bond length HBr = 1.41 angstroms; Dipole Moment HBr = 0.82D)
Using the van der Waals equation of state, what is the pressure of 1.423 mol of helium in a container of volume 5.412 L and a temperature of 25.0 C
The half-equivalence point of a titration occurs half way to the end point, where half of the analyte has reacted to form its conjugate, and the other half still remains unreacted
a proton in a linear accelerator has a de broglie wavelength of 144 rm pm. what is the speed of the
what are the allowed value for quantum numbers l,m, and s. Explain how this fits with the Mendeleev arrangement of the periodic table.
It takes the films 7.4 seconds to traverse the 1.2 m between two calibration marks on the tube. What is the rate of generation of CO2 in the moles per minute
Discuss in detail the healthcare applications of chemical reactions. Which chemical reactions would you consider to be of importance to healthcare professionals? Why? In which situations are these chemical reactions useful to healthcare professiona..
The 1995 Nobel Prize in Chemistry was shared by Paul Crutzen, F. Sherwood Rowland, and Mario Molina for their work concerning the formation and decomposition of ozone in the stratosphere
The endpoint corresponds to the equivalence point. D. At the equivalence point the amount of reagent added does not yet equal to the amount of analyte present
using a solution of hoc2h23nhcl solution in which kb hoc2h23n 5.9 times 10-7 then determine what is the ph of a 0.010
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