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In a titration of Ca(OH)2 and HCl, how would the calculation of the Ksp value be affected if the endpoint of titration was surpassed (i.e. too much HCl was added)?
How many grams of ice at 0°C and 101.3kPa could be melted by the addition of 0.40kJ of heat? Find the molar heat of fusion.
What is the molarity of ZnCl2 that forms when 30.0 of zinc completely reacts with CuCl2 according to the following reaction? Assume a final volume of 285 mL . Zn+ CuCl2=ZnCl2+Cu.
A 20.0 mL sample of gastric juice was taken from a patient suspected of having hypochloridia (low stomach acid). The sample was taken several hours after a meal so there was no ingested food or drink
How many grams of chlorine gas are needed to react with 11.5 grams of sodium metal
Calculate the mass of nitrogen dissolved at room temperature in an 94.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.
water can be expressed in polynomial form, vs the number of moles of ethanol (nEtOH), as 1002.93+54.6664*nEthOH-0.36394*nEthOH^2+0.028256*nEtOH^3, the partial molar volume of ethanol has its minimum value at m > 0.004 mol/kg.
Express your answer with the appropriate units. Indicate the multiplication of units explicitly either with a multiplication dot (asterisk) or a dash
An organic compound has a molecular weight of 176.12 amu and was found to contain only three elements, C, H and O. When a 1.0000 g sample was completely combusted in air
A room contains 46 of air.How many kilowatt-hours of energy are necessary to heat the air in the house from 9 to 30? The heat capacity of air is 1.03.
A system comprised of chloroform, 1,4-dioxane, and ethanol exists as a two-phase vapor/liquid system at 50 degrees C and 55 kPa.
Identify the element oxidized and reduced in the following redox rxn. Also indicated the number of electrons lost/gained by each atom.
What is the [OH-] in a solution that has a [H3O+] = 1 x 10-6 M?
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