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A sample of Au(CLO)3 is contaminated with LiCLO. An acidified 0.2000 g sample of this mixture is treated with excess sodium iodide and subjected to iodometric titration. The sample requires 48.24 mL of 0.08893 mol/L Na2S2O3 to reach the equivalence point. Assuming that the AU3+ and Li+ ions are unreactive during the titration, determine the mass percent of LiCLO in the sample.
The density of tungsten is 19.35 g/cm3. A sample of tungsten is placed in a graduated cylinder containing 30.0 mL of water and the water level rises to 34.0 mL. What is the mass in grams of the sample of tungsten?
How many atoms of neon occupy a volume of 14.3 L at STP?
What concentrations of acetic acid (pKa = 4.76) and acetate would be required to prepare a 0.20 M buffer solution at pH 4.5? Enter your answer to two significant figures.
Which of the following is false? A. Molecules with strong intermolecular forces have higher surface tension. B. Molecules with strong intermolecular forces have higher viscosities.
Borazine has the formula (BHNH)3. The combination of a boron atom and a nitrogen atom is isoelectronic with two carbon atoms. How would you draw the stucture of borazine?
Calculate the VOLUME (mL) of liquid H2O formed if the reaction goes to completion and you condense the water vapor.
Include in your explanation from which C and in what form the H would have to leave: [H+, H(with one electron), H(with two electrons)].
One mole of neon gas equals how many grams? Round to the nearest hundredth. Don't forget the units. Be sure to abbreviate the units.
The balloon rises to an altitude of 20,000 m, where atmospheric pressure is 55 mmHg and the temperature is 210 K. What is the volume of the balloon at 20,000m?
how many grams of metallic copper can be obtained when 54.0 grams of Aluminum react wit 319 grams of CuSO4?
Can someone please help me I need to A. Write the complete equation for each reaction that produced a precipitate
What mass of sodium azide is required to provide the nitrogen needed to inflate a 47.0 L bag to a pressure of 1.2 atm at 47 C.
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