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A 7 mL sample of a solution of K2CO3 was diluted with water to 25 mL. A 10 mL sample of the dilute solution was found to contain 0.61 M CO32-. What was the concentration of K2CO3 in the original undiluted solution?
Calculate the minimum number of grams of propane, C3H8(g), that must be combusted to provide the energy necessary to convert 3.28 kg of ice at -11.0°C to liquid water at 80.0°C.
Determine how many grams of solute would separate if the quantity of the solvent is 129 grams if a saturated solution of ammonium nitrate at 75 °C is cooled to fifteen degree Celsius?
The Al2O3 does not react. If the sample residue weighs 2.675 g, what is the mass fraction of Fe2O3 in the original sample?
what is the total molar concentration of all the ions in 0.030 M solutions of the following salts in water? a) 0.030 M KCl = ________ M ions b) 0.030 M CuSO4 = _____ M ions c) 0.030 M CaCl2 = _______ M ions
In a healthy wild type animal the Km (KT) of the glucose transporter (GLUT2) present in liver cells is 15 mM. What would happen to glucose transport in the liver cells of animal that expressed only a mutant GLUT2 protein with a Km of 1mM
Calculate the specific heat capacity of this sample of mercury if The amount of energy required to heat 2.00 grams Hg from 50 degrees C to 85 degrees C is 9.87 J.
what is the main difference between, 2s or 3s or 4s orbitals, or 2p, 3p or 4p. is it just that they are bigger
What changes would I make in my experimetal procedure to determine the rate law for the oxidation of red dye by sodium hypochlorite
Show that (∂H/∂P)T = 0 for an ideal gas using thermodynamic relationships and the definition of G
What mass of Mg(OH)2 will dissolve in 1.0 L of 0.050 mol/L solution of MgSO4(aq)
what is the mole fraction of hydrogen in a gaseous mixture that consists of 8.00 g of hydrogen and 12.00 g of neon in a 3.5 liter container maintained at 35.20 degrees celsius?
What is the pH of a solution that is 0.10 M CH3NH2 (methylamine) and 0.15 M methylammonium chloride
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