When concentrated acid is diluted with water the outside of the flask becomes extremely warm. Is the dilution process exo or endothermic?
When concentrated acid is diluted with water , large amount of heat is released which makes the outside of flask extremely warm. We know that the process which involve release of heat is called exothermic process.
So, it means dilution of concentrated acid is an exothermic process.
When concentrated acid is diluted with water the outside of the flask becomes extremely warm. Is...
Concentrated nitric acid is 17 M. What volume of HNO3 must be diluted with distilled water to prepare 4.50 L of 0.10 HNO3? Express your answer to two significant figures and include the appropriate units.
Dilution of Concentrated Solutions The number of moles of solute in liters of a solution of molarity is given by Moles Solute = m x v It is often of practical importance to take a concentrated solution of known concentration, and to add solvent to it to obtain a diluted solution with a desired concentration. During the process of dilution, since only solvent is added, the number of moles of solute is constant. Using to denote the concentrated solution, and...
Solve the following 1) A solution is made by adding 24.8 mL of concentrated nitric acid (70.4 wt%, density 1.42 g/mL) to some water in a volumetric flask, and then adding water to the mark to make exactly 200 mL of solution. Calculate the concentration of this solution in molarity. 2) A 72.0 mL aliquot of a 1.50 M solution is diluted to a total volume of 288 mL. A 144 mL portion of that solution is diluted by adding...
You diluted a 12.96 ml vinegar sample into a 100 ml volumetric flask with distilled water. You titrated a 25.00 mL aliquot of that solution and determined the concentration of acetic acid to 0.048 M. What was the concentration of acetic in the original sample.
0.3926 g of salicylic acid is dissolved in water and made up to 250.0 mL in a volumetric flask. Then, 4.00 mL of this solution is pipetted into a 50.0 mL volumetric flask and diluted with water to the mark. What is the final salicylic acid concentration?
0.3856 g of salicylic acid is dissolved in water and made up to 250.0 mL in a volumetric flask. Then, 3.00 mL of this solution is pipetted into a 50.0 mL volumetric flask and diluted with water to the mark. What is the final salicylic acid concentration?
Phenytoin is an extremely weak acid, pKa 8.3, with very poor water solubility. Solubility of the sodium salt in water is 15 g/L, and in ethanol it is 95 g/L. It is freely soluble in warm propylene glycol and it has a molecular weight of 274.3. We are going to prepare five 5 mL vials of this product. With its poor water solubility, how would you propose that the required concentration of 50 mg/mL be achieved and which and how...
When multistriatin is treated in acid solution diluted with water, a compound with formula C10H18O3 is formed which shows an intense IR signal of 1715cm-1 and a broad band between 3000cm-1 and 3500cm-1. Propose a structure for that product.
D. Addition of sulfuric acid to a flask of water is observed to increase the temperature of the flask. The creation of the mixture can be thought of as breaking interactions between water molecules (i.e., water - water interactions), breaking interactions between sulfuric acid molecules (i.e., sulfuric acid - sulfuric acid interactions) and forming new interactions between water and sulfuric acid (i.e., water - sulfuric acid interactions). Which of the following is true? Circle and explain your answer to receive...
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A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the empty flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated H2SO4? Assume water has a density of 0.998 g/mL at the temperature of the measurement. Question 2 3 pts Acetaminophen is a medication used to treat pain and fever and contains Carbon, Hydrogen, Oxygen, and Nitrogen. Combustion analysis...