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What are the spectator ions in the solution after the complete neutralization reaction occurs when mixing the weak acid H2CO3 (aq) and the strong base NaOH (aq)?
Check the periodic table here
H+ , CO32- , Na+ , and OH-OH- and Na+H+ and OH-OH- and CO32-Na+ and CO32-Na+ and H+CO32- and H+CO32-Na+
Predict the delta H, delta S, delta V and delta G for dissolving 60. g benzene (C6H6) in 100. g of toluene (C7H8) at 298 K. State any assumptions made.
Nylon is a synthetic polymer made up of amide linkages formed when a diacid condenses with a diamine. The different types of nylons are identified by the number of carbons possessed in the diamine
Chromium, Manganese, and Barium are all examples of metals that can be prepared in a pure form by combining oxides of these elements with reactive metals
Estimate Delta G or this reaction at each of the following temperatures. (Assume that Delta H and Delta S do not change too much within the given temperature range.)
What is the pressure of the gas in this mercury manometer if h = 73 mm and atmospheric pressure
What volume of 1 M HCl do you have to add to change the pH of the solution to 6? Assume that the change in volume from adding HCl is negligible. Recall that pH = pKa + log([A-]/[HA]. I cannot, for the life of me, figure this out.
Octane has a density of 0.692 g/mL at 20 C . How many grams of O2 are required to burn 19.0 gal of C8H18.
Consider the reaction CaCN2 + 3 H2O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced
A mixture moistened with water and placed it in a desiccator (drying chamber) with silica gel to dry at 22C. the silica gel absorbed water vapor as the mixture dried.
An emerald gemstone is an impure form of the mineral beryl, Be3Al2Si16O18. What is the percentage of silicon in the mineral?
What is the molarity of a solution produced by dissolving 31 g of Cu(NO3)2 in a 100 mL volumetric flask?(Enter unit as M.)
A gas sample containing 1.35 mol at 25°C exerts a pressure of 405 torr. Some gas is added to the same container, and the temperature is increased to 50.°C. If the pressure increases to 800. torr, how many moles of gas were added to the container?
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