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Define a solution contains Ag+ and Pb2+ ions. The addition of 155.0 mL of 1.50 M NaCl is just sufficient to precipitate all the Ag+ and Pb2+ ions. If the total mass of the preciptiate is 32.8g; Define how many grams of AgCl is in the precipitate?
Calculate the molarity of a solution that is 7.00% by mass Magnesium sulfate and has a density of 1.071g/ml
4 liters of an ideal gas at 200 K is heated to 400 K. What is the gas's new volume assuming the number of moles and pressure remain constant
When measuring horse radish peroxidase you found that a purified preparation has a specific activity of 10mmolar/sec/mg protein. suppose you added to an assay a competitive inhibitor that would not produce a colored product.
a water soluble salt forms a precipitant during Group 3 analysis. An acidic solution of this precipitant and NaBiO3 yields a pinkish color. This same salt has no reaction to concentrated H2SO4 or AgNO3, what is the chemical formula for this salt?
An unknown compound containing only carbon and hydrogen was burned in excess oxygen. When 8.480 grams of the compound was burned, 26.608 grams of carbon dioxide and 10.895 grams of water were produced.
The heat of vaporization of water at this temperature is 574 cal/g. We normally do not sweat this much. Explain what is wrong with this calculation?
A small piece of zinc reacts with dilute HCl to form H2, which is collected over water at 16°C into a large flask. The total pressure is adjusted to barometric pressure (752 torr), and the volume is 1544 mL.
Enough of a monoprotic acid is dissolved in water to produce a 0.0193 M solution. The pH of the resulting solution is 2.42. Calculate the Ka for
What is the mass in grams of 1.56 moles of menthol?
Estimate the enthalpy change for the combustion of one mole of ethanol (C2H5OH) using average bond dissociation enthalpies (in KJ/mol) for C-?H: 413, O-?H: 463, C-?O: 358, C-?C: 154, C=O: 122, and O=O: 498.
If LiF dissolved in water what two ions would form. What part of the water molecule would be attracted to each of the ions listed above and why
nh4no3 decomposes according to the equation...2nh4no3 s ---gt 2n2 s o2g 4h2o gwhat pressure in torr will develop in a
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