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Antacid tablets are made from a variety of compounds. Sodium bicarbonate, magnesium hydroxide and calcium carbonate to name a few. Give the chemical formulas for these, and identify any advantages and/or disadvantages to the three different compounds with respect to usage as an antacid.
Copper metal and zinc metal react differently in the presence of certain acids. For example, while both react with concentrated nitric acid and dissolve completely, only zinc reacts and dissolves in dilute hydrochloric acid.
Potassium hydrohen phthalate, KHC8H4O4, functions as monoprotic acid. If a 1.46 g sample of impure KHC8H4O4 requires 34.3 ml of 0.145 M NaOH
find the electronic configuration for ionization energies of magnesium the orbital number in which the electrons are
What is the rate constant of a first-order reaction that takes 215 for the reactant concentration to drop to half of its initial value?
Indicate the pH at (a) the beginning of the titration (0.0 mL titrant) and after the addition of (b) 12.5 mL, (c) 24.0 mL, (d) 24.9 mL, (e) 25.0 mL, (f) 25.1 mL, and (g) 30.0 mL of the titrant. Label the half-neutralization point and the equivalen..
A new compund has been analyzed and a .47191g sample has been found to contain .1929g C, .01079 of H., .08566g of oxygen, and .1898g of Cl. Find the empirical formula
A ground state hydrogen atom absorbs a photon of light having a wavelength of 92.085 nm it then gives off a photon having a wavelength of 902 nm. what is the final state of the hydrogen atom
What is the molar mass of the unknown gas. Elemental analysis of the unknown gas from Part A revealed that it is 30.45% N and 69.55% O. What is the molecular formula for this gas.
gaseous germane reacts according to the balanced equation. if a total of 5240 kj of heat is produced in the reaction as
A rigid tank of volume 0.5 m^3 is connected to a piston cylinder assembly by a valve, as shown below. Both vessels contain pure water. They a re immersed in a constant-temperature bath at 200°C and 600 kPa
A mixture of cyclopropane gas and oxygen is used as an anesthetic. Cyclopropane contains 85.7% C and 14.3% H by mass. At 50.0C and .984 atm pressure, 1.56 g cyclopropane has a volume of 1.00 L. What is the molecular formula of cyclopropane?
a gas balloon has a volume of 106.0 liters when the temperture is 45 clesuis and the pressure is 740.0 mm of mercury.
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