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What is the concentration of a solution of sodium hydroxide, 25.0 cm3 of which requires 20.0 cm3 of hydrochloric acid of concentration 0.100mol/dm3 for neutralization?
When hydrogenating methyl trans-cinnamate or dimethyl fumurate using 5% Pd/C at room temperature, how will you determine if the reaction is chemoselective
Bromine is larger than chlorine however the equilibrium constant indicates that a chloro substituent has a greater preference for the equitorial position than a bromo substituent does. Propose an explanation for this fact.
A solution contains 0.35 mol of isopropanol (C3H7OH) dissolved in 0.85 mol of H2O. What is the molarity of this solution
Describe the method for checking for completeness of precipitation. Briefly explain why precipitates are usually rinsed with distilled water before they are tested further.
If 55.0 mL of ethanol ) initially at 8.0C is mixed with 55.0 ml of water (density = 1.0g/mL) initially at 28.6C in an insulated beaker, and assuming that no heat is lost, what is the final temperature of the mixture
hydroquinone is an antioxidant that is also used as a photographic reducer and developer. the normal boiling point of
The final temperature of the coffee cup is 120.3 degrees Fahrenheit. An Unknown amount of titanium (c = 25 mol^-1 C-1) is heated to 315 degrees Fahrenheit then added to the calorimeter containing 50g of water at 70 degrees Fahrenheit.
An unknown monoprotic weak acid, HA, has a molar mass of 55.0. A solution contains 2.50 g of HA dissolved 800. mL of solution. The solution has a pH of 2.000. What is the value of Ka for HA
Calculate the pH at 25°C of an aqueous solution that is 0.320 M in ethylamine and 0.140 M in ammonia (i.e.the solution contains both compounds).
Problem- You are studying a new reaction and measure the DHo as -7.7 kJ/mol and DSo as 44.1 J/mol/K. What is the DGo for this reaction? Report your anser in kJ/mol to the nearest 0.1 kJ/mol. Assume the reaction is occuring at body temperature, 37o..
Sulfamic acid, HSO3NH2 (molar mass = 97.1 g/mol), is a strong monoprotic acid that can be used to standardize a strong base: HSO3NH2(aq) + KOH(aq) --> KSO2NH2 (aq) + H20(l)
A complex of correctly written formula [Pt(NH3)3Br]Br·H2O has which set of ligands in its inner coordination sphere. A) 3 NH3 and 2 Br- (B) 3 NH3, 1 Br--, and 1 H2O C) 3 NH3, 2 Br-, and 1 H2O (D) 3 NH3 and 1 Br-
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