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the atomic masses of 6Li and 7 Li are 6.0151 amu and 7.0160 amu. Calculate the neutral abundance of each isotope. The average atomic mass of Li is 6.941 amu
The vapor pressure of ethanol is 100 mmHg at 34.9oC. Its molar heat of vaporization is 39.3 kJ/mol. What is the vapor pressure of ethanol in mmHg at 57.5 oC?
How many molecules of carbon dioxide are produced when 129 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water.
Experiment ClO2 (M) OH (M) Rate (M/s) Determine the rate law expression and calculate the value of the rate of constant.
Determine How many moles each of Na+ and Cl- are in 0.800 L A physiological saline solution contains 172mEq/ L each of Na+ and Cl-of the saline solution?
What is the molecular formula of a compound with a percentage composition 26.7% P, 12.1% N, and 61.2% Cl and a molecular mass of 695u.
What is the density of lead (in ) if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9 ?
A 782 mL gas sample at STP is compressed to a volume of 131 mL, and the temperature is increased to 22?C. What is the new pressure of the gas in Pa?Answer in units of Pa.
For HCB, log Kow = 6.6. What would be the predicted concentration (ppm) of HCB due to bio-concentration in the fat of fish that swim in waters containing 0.000010 ppm of the chemical?
Whats the volume of 1.05 mol of benzene at 20.7 C? The density of benzene of 0.879 g/mL.
How much energy (in kilojoules) is required to convert 285 ml of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 ?
Suppose 50 mL of 0.250 M CoCl2 solution is added to 25.0 mL of 0.350 M NiCl2 solution. Calculate the concentration, in moles per liter, of each of the ions present after mixing.
Consider two solutions. One solution is 0.1115 M Ca(OH)(2). The other is 0.1050 M HClO(4). a) Write a balanced equation for the reaction between the two solutions.
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