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If 42.1 mL of 1.02 M sodium hydroxide, measured using a graduated cylinder, is placed in a beaker filled with 300 mL of DI water, what is the concentration of the diluted NaOH solution? Why does this calculation only provide an estimate of the NaOH concentration? In other words, why do we have to standardize the HaOH in this experiment to find its exact concentration?
A particular brand of gasoline has a density of 0.737 rm g/mL at 25 C. How many grams of this gasoline would fill a 15.1 gal tank?
What compounds will be present after chemical reaction has occurred. Write out a balanced chemical reaction for this description, and name all compounds present.
A gas occupies 1.55 L at 0.80 atm. What pressure would the gas exert if the volume were allowed to increase to 3.50 L?
A technician would like to find the concentration of a NaOH solution using KHP as the primary standard. The reaction of NaOH and KHP is as followed:
The pH of an acid solution is 5.14. Calculate the Ka for the monoprotic acid. The initial acid concentration is 0.010M.
what is the mechanism of how sodium hydroxide reacts with ester (lard) to form cardoxylic acid soap
What molarity of aqueous magnesium chloride solution can be expected to show the same conductivity
what is the electronic geometry about a central atom which has the following number regions of electron density? a) Four regions of electron density b) Six region of electron density
Two students reported a plus/minus 6.0% error. What was the highest alcohol density reported and what was the lowest alcohol density reported by the two students?
Assume that the initial purple solution is 16.05mg/L in sodium salicylate, 0.15M in HCl and 0.065 M in iron(III) ions. What are the concentrations of these three once you diluted the 10.00 mL to a final volume of 50.00 mL in the volumetric flask
Determine the pH of a 0.62 M NH4NO3 solution at 25°C. The Kb for NH3 is 1.76 × 10-5.
Explain how to determine exclusion limit of a gel of unknown origin.
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