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Problem- If the Ka of a monoprotic weak acid is 7.2 x 10^-6, what is the pH of a 0.20 M solution of this acid?
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Suppose that you wished to prepare copper(II) carbonate by a precipitation reaction involving Cu2+ and CO32-. Select all of the pairs of reactants that could be used as solutes
Assume that the coffee has the same density, 0.997 g/mL, and specific heat capacity, 4.184 \rm J/(g\K), as water over this temperature range. I got 1.64 x 10^20 photons for my answer, but i keep getting told that x 10 is not supposed to be in the ..
When a sample of phosphorus-32 was placed 1 cm from the detector, the intensity of its radiation was measured to be 491 counts per second. What would its activity be 2 cm from the detector
While aqueous solutions of cadmium chloride and sodium sulfide are mixed a precipitate of cadmium sulfide forms, leaving soluble sodium chloride in the solution. Include states in your answer.
a gas mixture consists of N2, O2, and Ne where the mole fraction of N2 is .55 and the mole fraction of Ne is .25. If the mixture is at STP in a 5.0 L container, how many molecules of O2 are present.
Given that the energy of combustion (?E) for palmitic is -39.2 kJ/g, calculate the heat capacity of the bomb calorimeter. Make sure you enter kJ/C for your unit behind the number.
Why shouldn't you use a spatula to scrape your crystals offthe filter paper
Draw all of the resonance forms of 4-nitrobenzaldehyde which contribute to the enhanced electrophilicity of the aldehyde carbon relative to benzaldehyde
Question- If all of the energy from decay of the K-40 (potassium-40) in one banana your body could be captured and converted into electrical energy, 1) How many bananas would be needed to power a 100W light bulb
How are moles, masses, and volumes of gases calculated from one another for a gas at STP
a piece of 122 grams metal with is placed in a 50 ml graduated cylinder. determine what would be the density of the
A concentrated sulfuric acid solution is 65.0% H2SO4 by mass and has a density of 1.55 g/mL at 20°C. What is the mass of 8.00 L of the concentrated sulfuric acid solution?
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