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an irregular shape of metal has a mass of 54.6 grams and displaces 2.83 cm^3 of water when dropped into a graduated cylinder filled with water. What is the identity of the pure metal?
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 excess PCl5
If a 220 piece of gold (density =19.32 ) is hammered into a sheet measuring 2.3*1.0 ft. , what is the average thickness of the sheet in meters?
Calculate How many palladium atoms will have to be laid side by side to span a distance of 4.28 mm if The radius of a palladium atom is 137 pm.?
The temperature of Beaker X = 75°C and the temperature of Beaker Y = 50°C after Five minutes . determine the temperatures be after another 5 minutes have passed?
1.00 mol of phosphorus reacted with excess fluorine: P4 + 6F2 -> 4PF3 Calculate the number of moles of PF3 produced, assuming the reaction went to completion
The purity of a 0.287 -g samole of Zn(OH)2 is determined by titrating with a standard solution, requiring 37.8 mL. The HCL solution was standardized by precipitating AgCl in a 25.0-mL aliquot
When M2S3 is heated in air, it is converted to MO2. A 4.000g sample of M2S3 shows a decrease in mass of .277 g when it is heated in air.
Using a phosphorus 12.39 g sample that reacts with 42.54 grams of chlorine to produce only phosphorus Trichloride (PCl3). If it is the only product, determine what mass of PCl3 is formed?
Assume a wind turbine with a hub 50 meters above the ground, a rotor diameter of 75 meters and a wind-conversion efficiency of 25 percent.
Dipole moment, Formaldehyde has a very large dipole moment (2.33 Debye) whereas carbon monoxide has a very small dipole moment (0.11 Debye)
An experiment requires 45.8 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder.
What is the wavelength (in meters) of a proton (mass = 1.673*10^-24 g) that has been accelerated to 30% of the speed of light.
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