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1. Calculate the molarity of 79.3 ml of diluted NaOH solution prepared from 25.6 ml of 7.8 M NaOH stock solution.
2.If 44.9 ml of 0.179 M hydrochloric acid requires 21.2 ml of the NaOH solution to reach the endpoint, what is the molarity of the NaOHsolution?
The label on an aerosol spray can contains a warning that the can should not be heated to over 130°F because of the danger of explosion due to the pressure increase as it is heated.
Consider the decomposition of calcium carbonate. Assume that ?H° = 177.8 kJ/mol and ?S° = 160.5 J/K·mol for the temperature range. CaCO3(s) -> CaO(s) + CO2(g)
When heating the acetone in a water bath, why must there be a hole in the foil cap
What is the importance performing orthostatic blood pressure on a patient with dizziness and a history of hypertension?
Calculate the hydronium ion concentration and the pH after the addition of 0.25 mL of 0.10 M HCl to each one.
What is the exact alkalinity of a water that contains 0.6580 mg/L of bicarbonate, as the ion, at a pH of 5.66? No carbonate is present.
You accelerate constantly from a speed of 6.0 m/s in the positive x direction to a speed of 18 m/s in the negative x direction. The time taken is 8.0 seconds.
Find out how to prepare the following solutions gravimetrically. Be specific about precisely what equipment and glassware you would utilize when appropriate. Show calculations.
Sparkling wine is bottled under a CO2 pressure of 4.1 atm. The solubility of CO2 at 4.1 atm is 0.70 g/100 g H2O. What is its solubility after the bottle is opened if the partial pressure of CO2 is 3.4x 10-4 atm
Calculate the volume of the sample after the reaction takes place (assume temperature and pressure are constant).
Explain how many grams per mL of aspirin are in the resulting solution. Note a 250-mL volumetric flask has a precision of 0.01 mL as well as the amount of NaOH added has no bearing on the important figures in the final concentration).
Determine the new concentration of the solution after it is diluted by adding 159 mL of water.
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