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A soluution prepared by dissolving 682 mg of a sugar (a molecular compound and a nonelectrolyte) in 1.00g of water froze at -3.72 degrees C. What is the molar mass of this sugar? The value of Kf is 1.86 degrees C/m.
If 3 moles of NaCl are needed to produce 1 mole of AlCl3, how many grams of NaCl are needed to produce 200 grams of AlCl3? Show all of your work/calculations.
The compound 2-methyl-1,4-pentadiene would be classified as what type of diene? Select the least stable diene listed below
Calculate the mass of KI in grams required to prepare 5.00x10^ 2mL of 3.2 M solution.
A 72.0 mL volume of 0.25 Moles HBr is titrated with 0.50 Moles KOH. Calculate the pH after addition of 36.0 mL of KOH
A mass of 2.50 g of hydrated copper(II) sulfate is placed in a crucible and heated. On heating, 1.59 g of white anhydrous copper(II) sulfate is left behind. Determine the ratio of water to copper(II) sulfate.
The % mass composition of 0.1458g sample of a compound was measured by burning the compound in an excess of oxygen.
Antacid tablets contain a variety of bases such as NaHCO3, MgCO3, CaCO3 and Mg(OH)2, Only NaHCO3 has appreciable solubility in water. write a net ionic equation for the reaction of each antacid with aqueous HCl. include the state of each species. ..
what amount of HCl in grams is needed to react with .676 g Al(OH)3
What is the % by mass of CaCl2.2H2O in the salt mixture B. how many grams of the excess reactant K2C2O4.H2O reacted in the mixture C. How many grams of the K2C2O4. H2O in the salt mixture remain unreacted
when a mixture of these two gases are compressed to a smaller volume, which way does the reaction shift to? the reaction is originally at 588 kelvins and has an equilibrium constant of "k"=0.0180
Chlorine gas can be produced commercially by passing an electric current through a con- centrated solution of sodium chloride (brine).
The _______ of a titration occurs when the indicator changes color.
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