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Chlorine has two stable isotopes Cl-35 and Cl-37. If their exact masses are 34.9689 Amu and 36.9695 amu, respectively, Explain what is the natural abundance of Cl-35? The atomic mass of chlorine is 35.45 amu
Consider the reaction when aqueous solutions of barium acetate and chromium(III) iodide are combined. The net ionic equation for this reaction is
Write balanced equations of toulene, isopropylbenzene, ethylbenzene, t-butylbenzene with bromine in the presence of dichloromethane
the solubility of lead (ii) iodide (PbI2) is 0.64 g/L at 20 C. What is the solubility product for lead (II) iodide? Show work please
Explain your answer. Could you still identify what those amino acids were? Explain your answer. What can you not do?
write the mathematical expression for the equilibrium constant, Keq, as a function of the concentrations of the products and reactants for this reaction
The wavelength of maximum absorbance is solvent dependent. in water, the wavelength of maximum absorbance is 453 nm.
A student heated 1.0L of ethanol (density 0.789 g/L) with 1.0 mL ethanoic acid (density 1.049 g/mL) with a sulfiric acid catalyst and noticed a vinegar-like smell to the product as well as a fruity medicinal smell.
Consider that there is 26.38 g NaCl in a solution that has a total volume of 1,780 mL with a density of 0.8495 g/mL. A) What is the molarity of NaCl B) What is the mass/mass % C) What is the molality
Calculate the molarities of HC2H3O2 and NaC2H3O2 in the buffer solution you will prepare in this experiment. The buffer solution consists of 50mL and 0.20M of NaC2H3O2 and consists of 10mL and 1.0M of HC2H3O2
1.335 g of a particular metallic alloy, compounded of only Pb and Sb, can be quantitatively converted into a 1.554-g mixture of the oxides PbO2 and Sb2O4. What was the percentage (by mass) of antimony in the alloy
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
You are given solutions of HCl and NaOH and must determine their concentrations. You use 30.6 mL of NaOH to titrate 100. mL of HCl and 18.0 mL of NaOH to titrate 50.0 mL of 0.0796 M H2SO4. Find the unknown concentrations.
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