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To a sol containing 2.00g of CaCl2 & RbCl we add an excess of AgNO3 to form 3.45 gof AgCl(s) precipitate. What is the % of RbCl in theoriginal mixture.
A drug with the molecular formula C25H38O5 has 2.14 x 10^23 carbon atoms. What is the mass of the sample?
The standard cell potential E cell of the reaction below is -0.34 V. The value of delta G for the reaction is __________ kJ/mol. Cu (s) + 2H+ (aq) ? Cu2+ (aq) + H2 (g) +66 -0.34 -130 +130 none of the above
Identify the substance that is oxidized and the substance that is reduced in the following reaction: 2NaCl(l) --> 2Na(s) + Cl2(g). How many electrons are involved in the above redox reaction
the solubility of mgoh2 s in wataer at a certain temperature is 1.0 x 10-4 moll. calculate the value of ksp for mgoh2 s
Calculate the vapor pressure of ethanol at 30C (in mm Hg). Bp of ethanol 76 C.
Determine the exact formula of the compound. When 9.64x10-4 moles of this complex is dissolved into 425.0 mL of the water, you find that 19.22 mL of 0.1000 M HCl is needed to reach a titration endpoint
Calculate the empirical formula of the compound (CxHyOz). B) If the 4.00g sample corresponds to 0.0666 moles of a compound, what is the molecular formula of the unknown molecule (CxHyOz)
Consider the following data showing the initial rate of a reaction at several different concentrations of A
a 35.0-ml sample of 0.20 m lioh is titrated with 0.25 m hcl. what is the ph of the solution after 23.0 ml of hcl have
What is the coefficient of the water? K2O + H2O What is the mass of 2.10 x 1021 atoms of copper, Cu? What is the molar mass of aspirin, C9H8O4?
A solution containing 82.0 g of ascorbic acid dissolved in 230 g of water has a density of 1.22 g/mL. Calculate the molarity of ascorbic acid in the solution.
Draw all resonance structures for anisole to show why the methoxy group directs incoming electrophiles
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