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If a light wave has a wavelength of 528 nm, compute the frequency of the wave as well as the energy of the wave in kJ/mol. Define what color does the correspond to?
Write ionic and net ionic equations to show how limestone reacts with HNO3 and H2SO4 to neutralize them. How would you be able to tell if the neutralization process was working
Calculate the change in pH to 0.01 pH units caused by adding 10. mL of 2.63-M NaOH is added to 440. mL of each of the following
a. what are the moles fractions of each components in a mixture of 5.0 g of o2 7.50 g of n2 1.0 g h2b. what are the
For the reaction NH4CL(aq)=NH3(g)+HCL(aq),delta g=58.8 kJ and delta h=86.4 kJ. Is this reaction favored. If so, how. What would be the entropy change for the reaction of 2.04 moles of NH4CL(aq) at 349K and 1 atm
how much heat is required to raise the temperature of 50.0 g of C6H6 at 6.00ºC to 93.0ºC
If a drop of NaOH solution had adhered to the side of the Ehrlenmeyer flask during the standardization of the NaOH solution, how will this error affect the reported MM of the unknown acid( higher or lower than actual value) Explain using mathamati..
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
Calculate Hrxn for the reaction below. Ca(s) + 1/2 O2(g) + CO2(g) CaCO3(s) You are given the following set of reactions. Ca(s) + 1/2 O2(g) CaO(s) H = -635.1 kJ CaCO3(s) CaO(s) + CO2(g) H = 178.3 kJ kJ
How many moles of a metal chloride (MCl2) will dissolve in 2.0 liters of 0.050 M NaCl solution. (Ksp for MCl2 = 1.24 x 1-^-10)
What is the mass, and the volume, of this seawater that contains 1.00 g of oxygen?
A sample of nitrogen occupies a volume of 250mL at 27 degrees C and 700 mmHg of pressure. What will be its volume at STP?
Define A piece of metal weighing 5.15g at a temperature of 49.3 °C was placed in a calorimeter in 20.00 mL of DI water at 22.1 °C. Define the final equilibrium temperature was found to be 29.4 °C. Explain what is the specific heat of the metal
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