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The method used in this experiment is sometimes called the vapor density method. Beginning with ideal gas equation, show how the density of a vapor may be determined by this method.
The lengths of chemical bonds in H2 and in other compounds formed from hydrogen isotops is about .74 x 10^-10 m. Estimate the bond length in molecules where the muon replaces the electron.
Calculate the percent yield for the reaction. A scientist performs this reaction in the lab by starting with 30.02 g of Mg and 0.992 moles of Cl2 gas
One of the most historically significant studies of chemical reaction rates was that by M. Bodenstein (Z. Physik. Chem. 29 (1899) 295) of the gas phase reaction and its reverse, with rate constants and , respectively. The measured rate constants a..
Two samples of sodium chloride were decomposed into their constituent elements. One sample produced 2.84 g of sodium and 4.37 g of chlorine
If solar radiation is 1010 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 for solar radiation.
A hydrogen molecule in it's ground vibrational state with KE=10eV coollides with heavy atom metal surface and no energy is transferred to the surface. The surface can be modeled as an infinite potential wall.
Solute S has a partition coefficient of 6.1 between water (phase 1) and hexane (phase 2). A 74.0 mL solution of S in water is extracted six times with 12.0 mL of hexane. Calculate the fraction of S remaining in the aqueous phase.
Draw the Lewis dot structure for the CIBr5. What is the molecular geometry? a) trigonal bipyramidal b) square pyramidal c) square planar d) seesaw
When ice melts, it absorbs 0.33 kJ per gram. How much ice is required to cool a 13.0 oz drink from 74 degree F to 31 degree F
the Ka of hydrazoic acid (HN3) is 1.9*10^-5 at 25 degrees C. what is the pH of a .35M aqueous solution of HN3?
The following is a first order reaction with a rate constant of 2.98*10>-3s-1: SO2CL2>>>>SO2+CL2. What is the half life for the reaction?
A 0.2527-g sample of a mixture of Mg(OH)2 and Al(OH)3 was treated with 50.00 mL of 0.225 mol L?1 HCl(aq). The resulting solution required 13.73 mL of 0.176 mol L?1 NaOH(aq) to neutralize the excess, unreacted HCl
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