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Determine the electron geometry and explain your answer for the Si atom in SiH4.
What is the pH when 100 mL of 0.1 M HCl is titrated with 50 mL of 0.2 M NaOH?
Also asking for initial pH of [H3O+] (mol/L) and [OH-] (mol/L), what would this be and is there a particular formula to use for these calculations of tenfold.
Write out the additional equations you would need to consider. d. Confirm that the number of equations is equal to the number of unknowns.
The flow rate of a process stream of hydrogen at 50 degrees celcius and 1800 mmhg, and the value read from the calibration chart is 350 cm^3/s. Calculate the true volumetric flow rate of the gas.
A solution of H2SO4(aq) with a molal concentration of 3.58 m has a density of 1.200 g/mL. What is the molar concentration of this solution
Calculate the concentration of iodide (I-1) in a solution obtained by shaking 0.10M KI with an excess of AgCl(s).
What is the relationship between the wavelength and the frequency of radiant energy? Ozone in the upper atmosphere absorbs energy in the 210-230-nm range of the spectrum. In what region of the electromagnetic spectrum does this radiation occur?
How many g of PF3 will be produced if 40.1 g of F2react, and the reaction has a 78.1% yield? [Hint: Calculate your theoretical yield and multiply it by 0.781.]
Define how to calculate the power use of the refrigerator and how to calculate the value of A if the room temperature is 25 degrees Celsius.
CO2 properties: appearance, reaction with limewater, reaction with flame, behavior with water. If positive observation then write a balanced equation.
Seawater contains 0.13% magnesium by mass, and has a density of 1.025g/ml. What fraction of the magnesium can be removed by adding a stoichiometric quantity of CaO (that is, one mole of CaO for each mole of Mg2+)
For the titration of 50.00 mL of 0.02000 M 2-(N-Morpholino)ethanesulfonic acid with 0.09900 M NaOH, calculate how much titrant (mL) is required to reach a pH of 9.29 mL in the receiving flask.
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