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Consider the accompanying energy diagram.
(a) Does this diagram represent an increase or decrease in the internal energy of the system?
(b) What sign is given to ¢E for this process?
(c) If there is no work associated with the process, is it exothermic or endothermic?
If 50.0mL of 1.60M HCl was added to 50.0mL of 1.80M NaOH, calculate the molarity of the resulting NaCl solution. (Hint calculate the moles of NaCl made.
Would a solution that has a molarity of 0.990 M KNO3 and a density of 0.988 g/mL be considered unsaturated, saturated, or supersaturated?
In the qualitative cation analysis procedure, Bi3+ is detected by the appearance of a white precipitate of bismuthyl hydroxide, BiOOH(s): BiOOH(s) --->
Calculate the mass of emitted into the atmosphere upon accelerating the from 0.0 to 67.0 . Assume that the required energy comes from the combustion of octane with efficiency.
Enter the coefficient for each compound, seperated by commas, in the order in which they appear in the equation (e.g., 1,2,3,4,5,6,7).
how many grams of metallic copper can be obtained when 54.0 grams of Aluminum react wit 319 grams of CuSO4?
A mixture of neon and carbon dioxide gases at a total pressure of 866 mmHg contains 1.20g of neon and 7.58g of carbon dioxide. What is the partial pressure of each gas in the mixture
What advantages does ligroin have over n-pentane as a recrystallization solvent
Explain a dilute solution of benzoic acid, C6H5COOH, is prepared by adding 7.7 mL of 1.5 M benzoic acid to a volumetric flask as well as adding enough water to bring the total volume of solution to 250 mL. Explain what is the final concentration o..
All of the sulfate ion is in the precipated as barium sulfate. the mass of Barium Sulfate 0.5032g . What is the average mass of saccharin per tablet ? What is the % mass of saccharin per tablet?
Question- The specific heat capacity of methane gas is 2.20 J/g-K. How many joules of heat are needed to raise the temperature of 7.25 g of methane from 20.0°C to 44.1°C
The reaction of H2 and F2 produces HF with PH= -269 kJ/mol of HF. If the H-H and H-F bond energies are 436 and 567 kJ/mol, respectively, what is the F-F bond energy
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