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Use the molar volume to determine the amount of baking soda required to react with vinegar to yield just enough carbon dioxide to fill a one-quart, self-sealing plastic bag.
A 20.00-mL sample of 0.150 M KOH is titrated with 0.125 M HCIO4 solution. Calculate the pH after the following volumes of acid have been added.
given that the density of a given solid and liquid of molar mass 147.2 gmolnbsp 992.6 kg m-3 and 933.4 kg m-3 . at its
Predict what amount in grams this double replacement reaction when 40ml of Potassium Iodide Pb(NO3)2 (aq) + 20 ml of Lead(II) nitrate 2KI (aq) combine to make --> 2KNO3 (aq) + PbI2 (s) . What is the predicted amount of PbI2 (precipitation)
Draw a structure for a compound that meets the following description: C7H8 with IR absorptions at 1600 and 1500 cm-1 and at 3030 cm-1.
Determine the pH of each of the following solutions. (a) 0.382 M hypochlorous acid (weak acid with Ka = 3e-08). (b) 0.900 M hypoiodous acid (weak acid with Ka = 2.3e-11). (c) 0.597 M pyridine (weak base with Kb = 1.7e-09).
Sirius, the brightest object on the night sky besides the moon and the larger planets and, is a two-star system. The surface temperature of the larger one (Sirius A) is 9940 K. What's the wavelength of the maximum in its emission spectrum. What co..
Calculate the mass of sodium acetate that must be added to 500.0mL of 0.200M acetic acid to form a pH = 5.00 buffer solution.
A gas is confined to a container with a massless piston at the top. A massless wire is attached to the piston. When an external pressure of 2.00 atm is applied to the wire, the gas compresses from 4.40 to 2.20L
Quinine (C20H24N2O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug.
Write balanced chemical equation and evaluate the molecular weight of the reactants and Calculate the molecular weights of the reactant.
Write the COMPLETE IONIC and NET IONIC equations for the reactions that occur when the following are mixed.
what mass of this substance must evaporate in order to freeze 119 of water initially at 24? the heat of fusion of water
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