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Given the subsequent data for the length of a side of the unit cell for compounds that crystallize in the rock salt structure, find out the cation radii: MgSe (545pm), CaSe (591 pm), SrSe(623pm), BaSe (662 pm). It is known that the Se2-ions are in contact in MgSe
Calculate the change in temperature for 4.50 g of CaCl2 dissolved in 90.0 mL of H20. Assume that the calorimeter absorbs no heat (ie. Ccal=0)
Calculate what mass of solid potassium monohydrogen phosphate should be dissolved in this solution to yield the required buffer
When a 6.00-g sample of RbBr is dissolved in water in a calorimeter that has a total heat capacity of 1.806 kJ·K-1, the temperature decreases by 0.440 K. Calculate the molar heat of solution of RbBr.
Calculate the fraction of Asp that has a side chain protonated at pH 7.0 (aspartic acid side chain pka = 3.86)
What is the final molar concentration of every species remaining in aqueous solution of the following reaction
A. What is the value of A in the following nuclear reaction. 238 92 U-->234 90 Th + AZx B. What is the value of Z in: 238 92 U-->234 90 Th+AZ X C. Write the balance equation for the following reaction? 56 26(aB) 6029 Cu
Upon taking the IR spectra of decanedioyl chloride and nylon 6,10, which of the 2 molecules would you expect to have a higher C=O stretching frequency and why
Eugenol can also be isolated from cloves using extraction with CO2. discuss the advantages and disadvantages of distillation versus CO2 extraction.
What is the molarity of a 600mL solution prepared by dissolving 6.72 g of sulfuric acid, H2SO4
Use the Rydberg equation to calculate the wavelength (in Å) of the photon absorbed when a hydrogen atom undergoes a transition from n = 1 to n = 5.
how many moles of nitrogen gas will be formed upon the complete reaction of 31.6 grams of nitrogen monoxide with excess hydrogen gas?
A weather balloon at Earth's surface has a volume of 4 L at 294 K and 746 mm Hg. If the balloon is released and the volume reaches 4.19 L at 715 mm Hg.
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