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What is the concentration of Ca2+ ions in a solution of CaI2 that has I- ion concentration of 0.520 M.
H3PO4 behaves differently at different higher temperatures, give details of reaction that occurs at different temperatures
Rare bacteria arriving on an asteroid from the invisible moon Teflonia eat C2F4 and use this raw material to make poly-TFE as their cell walls. (PTFE is teflon.) What happens to the equilibrium if the bacteria are added to the reaction mixture?
What is the longest wavelength of light that can be emitted by a hydrogen atom that has an initial configuration of 7p1? Give your answer accurate to three significant figures
A hydrogen atom with an electron in its ground state interacts with a photon of light with a wavelength of 1.22 × 10-6m. Could the electron make a transition from the ground state to a higher energy level?
Assume that you have an aqueous solution of an unknown salt. Treatment of the solution with dilute BaCl2, AgNO3, and Cu(NO3)2 produces no precipitate. Which of the following anions might the solution contain
Atoms contain protons. 2)Nuclei move out of the paths of the alpha particles. 3)Neutrons have zero charge.
Calculate the mass of propylene glycol that must be added to .360 kg of water to reduce the vapor pressure by 2.87 torr at 40 degrees celsius (Ph20 at 40 degrees = 55.3)
If you titrate a second 100.0mL portion of the Ag/Cu solution and add Cl- to precipitate out Ag+ leaving only Cu2+ in the solution, it requires 35.00mL of the same EDTA titrant to reach the endpoint. Calculate of both Ag and Cu in the original sol..
A solution is prepared by dissolving 294 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.
What fraction of piperazine (perhydro-1,4-diazine) is in each of its three forms (H2A, HA-, A2-) at pH 6.26
2NOCl(g) → 2NO(g) + Cl2(g) ,At 450 K the rate constant is 15.4 atm-1s-1. How much time (in s) is needed for NOCl originally at a partial pressure of 46 torr to decay to 25.8 torr.
Draw the structure of an eight-carbon alkene that would yield the following compound after treatment with ozone followed by dimethyl sulfide
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