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If the freezing point of a 0.106 m acetic acid solution is -0.203 C, calculate the percent dissociation of the acid.
Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.
A solution was prepared to have a density of 1.20 g/mL and a molality of 2.24 m at 22oC. The Mm of the solute is 63.10 g/mol. (a) What is the molarity of the solution?
Diana Prince was completing a simple distillation, she connected her flask to her condenser and her condenser to her elbow and added keck clips and water lines
A 62g piece of ice at 0 degrees C is added to a sample of water at 6 degrees C. All of the ice melts and the temp of water decreases to 0 degrees C. How many grams of water were in the sample?
Assume also that on a yearly basis the lake is completely mixed, and that the small river flowing into and out of the lake can be neglected as far as acidification is concerned. How many years will it be before the lake will reach a pH of 5.0?
Analysis of a commercial chewing gum gave results of 0.295 mg/g of BHA. To evaluate the accuracy of their results, they performed 5 spike recoveries, adding an amount of BHA equivalent to 0.181 mg/g to each sample.
It is well known that the element magnesium has three naturally occurring isotopes. Mg-24 represents 79.0% of all magnesium atoms, Mg-25 accounts for 10.0%, and Mg-26 is the remaining 11.0%.
Briefly explain whether the following procedural errors would result in either an incorrectly high or incorrectly low calculated percent Cu recovery for this experiment.
Chemical reactions are typically faster when a catalyst is added. This is because... 1. Molecules are moving faster when a catalyst is added
what is the chemical calculation to figure out the following: calculate the new molarity if the following dilution is made (assuming the volumes are additive): 25.0 mL of water is added to 10.0 mL of 0.251 M CaCl2 solution.
Use Table 6.3 or Appendix B to write balanced formation equations at standard conditions for each of the following compounds. (Type your answer using the format O3 for O3. Write all coefficients, even if they are fractions or 1.)
The density of aluminum is determined to be 2.680 g/cm3 at 125 degrees celcius. What is the length of one side of a 1 kg cube of aluminum at 640 degrees celcius.
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