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Assuming the volume of the stomach to be 1.0L, what will be the pH change of the stomach acid resulting from the ingestion of one Tums ultra 1000 tablet that contains 1000mg of calcium carbonate.
How would you calculate the quantitative solubility of calcium nitrate (Ca(NO3)2 after saturating the solution, heating, and drying and the precipitate formed weighs 1.3 g
Explain what the percentage of calcium is in an ionic compound of unknown composition if a 2.241g Sample of the compound is completely dissolved in water and produces 1.252g of CaCO3 upon addition of an excess of Na2CO3 solution.
In the laboratory a student finds that it takes 33.1 Joules to increase the temperature of 11.5 grams of solid lead from 20.3 to 39.9 degrees Celsius.
a 0.500 l solution of 7.50 m hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. calcium
The solid borax reagent is contaminated with a water-soluble substance that does not react with hydrochloric acid. As a result of this contamination, will Ksp of the borax be reported as too high, too low, or unaffected
In a hot flame, the emission intensities of the Sodium lines at 589 and 589.6nm are greater in a sample solution that contains KCl then when this compound is absent
Explain how many electrons per atom are delocalized in the sea of electrons model for the subsequent metals. a) iron b)vanandium c) silver
Codeine, C18H21NO3, a commonly prescribed painkiller, is a weak base. A saturated aqueous solution contains 1.00 g codeine in 120 mL of solution and has a pH = 9.8. What is the Kb of codeine?
Question- If the lake contains 1.2 x 10 7 liters of water, what is the concentration of arsenic in the lake expressed as grams per liter, moles per liter, parts per million (ppm), and parts per billion (ppb)
she particularly enjoys pickling and decides to pickle olivesover a leisurely weekend. according to the recipe she
a particle moving 30,816 km/hr has a wavelength of 725 nm. What is the mass of the particle?
The diffusion coefficient versus reciprocal of the absolute temperature for the diffusion of iron in chromium. Determine values for the activation energy and preexponential.
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