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Explain what volume of 1.75 M of hydrocholoric acid should be diluted with water to prepare 0.500L of 0.250M of hydrochloric acid? The volume of hydrochloric acid is desirable?
what is the energy of a single UV photon and a mole of UV photons having a wavelength of 25 nm?
An unknown acid has a molar mass of 60.05 g/mol. Given the following percent composition, what is the molecular formula. C-40 H-6.7 O-53.3
the solubility reaction of interest in this solution? (b) Is a precipitate expected in the solution (Yes, No, or Not Enough Information to Know)?
Calculate the heat released when 25.0 g of water at 0 degrees C crystallizes to ice at the same temp. The specific heat of water is 1.00 cal/(g *degrees C); the heat of fusion is 80.0 cal/g and the heat of vaporization is 540.0 cal/g.
One kind of electromagnetic radiation has a frequency of 107.1 MHz another kind has a wavelength of 2.12 * 10-10 m as well as yet another type of electromagnetic radiation has photons with energy equal to 3.97 * 10-19 J/photon. Identify each kind ..
if a sample of gas has fixed volume, and under a standard atmosphere of pressure, if its temperature is raised from 20 degrees celsius to 40 degrees celsius
determine the molecular formula for ibuprofen a common headache remedy. analysis ofibuprofen yields a molae mass of 206
A 10.00 ml sample of 0.254 M H2SO4 is titrated with 0.385 M NaOH. What volume of the NaOH solution, in mL, is required?
Draw viable Lewis structures to illustrate how the element bromine can take part in an ionic bond, a pure covalent bond, and a polar covalent bond.
The half-life of cobalt-60 is 5.27 years. How many milligrams of cobalt-60 remain after 52.7 years if you start with 10.0 mg.
A 5.00ml sample of a nitric acid solution is titrated with 33.5ml of 0.201M NaOH. What is the molarity of the nitric acid solution
If 50.0 ml of NaOH solution is required to react completely with 1.24 grams KHP, what is the molarity of the Naoh solution?
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