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Calculate the molarity (M) for each of these solutions--you must show all work in detail to receive credit: (a) 31.45 g of NaCl in 1.75 L, (b) 14.41 g of MgS in 0.850 L, (c) 0.4567 g of CuSO4 in 630 mL, (d) 25.5 mg of NaCN in 7.00 mL
Add curved arrows to both structures to show the delocalization of electron pairs needed to form the other resonance contributor.
Titanium (w=6.94x10^-19J) and silicon (w=7.77x10^-19J) surfaces are irradiated with UV radiation with a wavelength of 217nm. What is the wavelength of the electrons emitted by the titanium surface
Water in a glass tube that contains grease or oil residue displays a flat meniscus, whereas water in a clean glass tube displays a concave meniscus. Explain your answer fully.
Explain the rate law for the solvolysis of benzyl bromide in 50% ethanol/50% water at room temperature (24C) is given by: rate = 2.9 x 10-5 (benzyl bromide)(OH-) + (benzyl bromide)
Calculate the pH of the following mixture of acids: 100 mL solution containing 65 mL of 0.500 M acetic acid (CH3COOH - Ka = 1.8 x 10-5) and 35 mL of 0.300 M benzoic acid (C6H5COOH - Ka = 6.3 x 10-5).
What are the quantum numbers associated with the last electron[highest energy] in ground state Zn. please be very explicit as to the process and confer all of your internal dialog as you perform the exercise.
A gas expands and does P-V work on the surroundings equal to 261 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?
which one has the larger standard entropy value at 25C(assume thesame molar amount in the comparison) explain the reason why
a gas is placed in a storage tank at a pressure of 20.0 atm at 20.3 degrees celsius. as a safety device there is a
What is the pH at the stoichiometric point (end point) for the titration of 50 ml of 0.20 M methyl amine CH3NH2 (aq) with 0.20 M perchloric acid HClO4(aq). For methyl amine (CH3NH2), Kb = 3.6 x 10^-4.
If 17.5 moles of an ideal gas occupies 0.0455 cubic meters at 70.5°C, what is the pressure of the gas?
your friend gives you a bottle that contains eitherhydrochloric sulfuric or phosphoric acid. she also tells you the
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