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Does adding boiled, deionized water to the titrating flask to wash the wall of the erlenmeyer flask and the buret tip increase, decrease, or have no effect on the Ksp value of the Ca(OH)2?
Explain carefully, with a drawing, why the protons substituted ortho to an acetyl group normally have a greater chemical shift than the other protons on the ring.
An Ice cube tray holds 325 grams of water. If the water initially has a temperature of 25 C, how many kilojoules of heat must be removed to cool and freeze the water 0 C?
Suppose you take a 25.00 mL sample of this hydrochloric acid solution. You then titrate it with a 0.1477 M sodium hydroxide solution.
Describe how the results from this control experiment would be incorporated into the data analysis to the correct for this error.
A sample of lead releases 221 kJ of heat when freezing. What is the mass of the sample? DHfus = 23 J/g
What did the student do wrong? If the solution had been prepared correctly to the desired 1.0 M concentration, what volume of this stock should be diluted to prepare 100.0 mL of a 1.0 mM working solution?
calculate the number of moles of KOH in 5.50 mL of a 0.360 M KOH solution.What is the pOH of the solution?
what mixing proportion is required for lime stone with 91% CaCO3, and clay with 31% CaCO3 to get a raw mix with a CaCO3 content of 76%.
A chemical firm was hired to monitor a nearby lake for possible mercury contamination. Several samples were taken at different locations around the lake, including water samples.
If 5.28 x 10^3 kg each of NH3, O2, and CH4 are reacted, what mass of HCN and of H2O will be produced, assuming 100% yield?
Explain your reasoning for each by writing a balanced net ionic equation to describe its behavior in water.
Write a reaction mechanism for the adol condensation reaction betweeen p-anisaldehyde
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