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Determine the percent by mass of all elements in the compound sodium carbonate decahydrate better known as washing soda
What mass of sucrose should be combined with 468 of water to make a solution with an osmotic pressure of 8.75 at 295 ? (Assume the density of the solution to be equal to the density of the solvent.)
explain why moderate contamination of a basalt by granitic rocks does not greatly change the FeO/MgO ratio of the hybrid magma with respect to the ratio of the original basalt.
When hydrochloric acid reacts with magnesium metal, hydrogen gas and aqueous magnesium chloride are formed.
Ethylene is supplied by a 60.9-L gas cylinder initially at 2200.0 psig and 25.0°C. Once leaving the cylinder, a regulator reduces the pressure to 15.0 psig, and a valve allows 1.000 mL/s of ethylene at 25.0°C to flow into the reactor
Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume chance on addition of HCl.
explain why addin eletcrons to a bonding orbital leads to bonding of an atom, in terms of electron distribution
A current of 4.24 A is passed through a Cr(NO3)2 solution for 1.20 hours. How much chromium is plated out of the solution
the water dissociation reaction H2O (l) --> H+(aq) + OH-(aq). What are the standard states for the three species in the two cases? Density of water is 997 kg/m^3.
Calculate the pH of a buffer solution made by mixing 34.2 g of sodium acetate into 1 L of a 0.09 M solution of acetic acid. Give the pH to two decimal places.
Determine the magnesium content (in ppm) of a 100.00 mL sample of drinking water if the following data were obtained. Titrant is 0.0297 M EDTA, 13.71 mL
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.
Determine the boiling point of a solution that contains 78.8 g of naphthalene (C10H8; molar mass = 128.16g/mol) dissolved in 722 mL of benzene (d = 0.877 g/mL)
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