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write the net ionic equation, a solution of potassium dichromate is added to an acidified solution of iron II chloride
The accompanying drawing shows 4 water molecules interacting with glycine. Four dotted lines are labeled with numbers 1 through 4. As labeled by these numbers, which of the dotted lines could represent hydrogen bonds?
Consider a solution containing 4.95 mM of an analyte, X, and 1.79 mM of a standard, S. Upon chromatographic separation of the solution peak areas for X and S are 3569 and 10981, respectively. Determine the response factor for X relative to S.
Draw Lewis dot structures for each of the following molecules.
Titration curve. Consider the titration curve of 10 mL of 0.1 M HA, Ka=1.0x 10^-4 with 0.1 M NaOH. Calculate the pH after 5, 10, and 15 mL of NaOH are added
The best design for rockets is one in which both fuel materials run out at the same time to minimize excess mass. If the total mass of both components in a decaborane/oxygen rocket must be 3.011E+6g, what mass of liquid oxygen should be used
containing helium gas at a pressure of 31.1 atm is used to fill a weather balloon in order to lift equipment into the stratosphere. To what maximum pressure (in atm) could a 151 L balloon be filled.
Choose the element with the more negative (more exothermic) electron affinity from each of the following pairs.
A saturated solution of PbCl2 is found to contain 2.88*10^-2 M chloride ions. What is the correct value of the solubility product
Calculate a lattice energy for (in kilojoules per mole) using the following information.
Calculate What will be the volume of this gas sample at standard atmospheric pressure and
Gallium consists of two isotopes of masses 68.95 amu and 70.95 amu with abundances of 60.16% and 39.84%.
Explain how you would carry out these two reactions and why you obtain the products you indicate
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