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Question 1. An insoluble, nonreactive solid metal sphere weighing 21.52 g is added to 28.7 ml, of water in a graduated cylinder. The water level rises to 32.8 mL. Calculate the density of the metal.
Question 2. An empty beaker weighs 31.9982 g. A 10-mL pipet sample of an unknown liquid is transferred to the beaker. The mass of the beaker plus the 10-mL liquid sample is 39.8521 g. Calculate the density of the unknown liquid.
Explain Tie line with the help of phase rule
calculate the percent yield for an experiment in which 5.50 g of socl2 was obtained in a reaction of 5.80 g of so2 with
Classify each of the following as a strong acid or a weak acid and indicate how each should be written in aqueous solution.
At equilibrium, it is found that .25 moles of COCl2 remain. What is the equilibrium concentration of CO?
1) in which one of the following the oxidation number in nitrogen is given incorrectly?
A 5.00 mL addition of standard 0.02 M lead solution caused the potential to shift to -0.4490 V. Calculate the molar concentration of lead in the sample.
A single beam photometer with a linear response showed a detector signal of 73.6 uA for a blank solution. Replacing the blank with the sample solution yielded a signal of 24.9 uA. What is the transmittance expected for a sample solution of twice t..
prepared by adding 45.0 mL of 0.15 M NaF to 35.0 mL of 0.10 M HF. What is the pH of the final solution?
A tank containing carbon dioxide at 400K and 50 bar is vented until the temperature in the tank falls to 300K. Assuming there is no heat transfer between the gas and the tank
Explain what should be the approximate chemical shifts number for protons found on the tert-butyl groups of BHT
If an electron has a mass of 9.709x10^-31 kg, and a proton has a mass of 1.672x10^-27 kg, approximately how many electrons are required to have the same mass as one proton
when substitutionally incorporated into 1 kg of silicon will establish a charge carrier density of 3.091times1017
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