Why does the solution process occur even though
The enthalpy of solution of KBr in water is about +198 kJ/mol.Nevertheless the solubility of KBr is water is relatively high. Why does the solution process occur even though it is endothermic?
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A 1.53 g sample of water is injected into an exacuated 5.00 L flask at 65 degrees celcius. What will the mass of water vapor be when the system reaches equilibrium?
A 1.9 kg object that stretches a spring 6.9 cm from its natural length when hanging at rest oscillates with an amplitude of 8.4 cm. The acceleration of gravity is 9.81 m/s2. Find the following: Find the gravitational potential energy at maximum dow
A 0.6407 g sample containing chloride & iodine gave a silverhalide precipitate weighing 0.4430 g. This precipitate was thenstrongly heated in a steam of Cl2 gas to convert AgI toAgCl; upon completion of this treatment, the precipitate weig
A 4.476 g sample of a petroleumproduct was burnt in a tubefurnace, and the SO2 produced was collected in 3%H2O2. Reaction: SO2(g) +H2O2--> H2SO4.
What is the molar concentration of Cl- in a solution prepared by mixing 25.0 ml of 0.025 M NaCl with 35.0 mLof 0.05 m BaCl2 ? What is the pCl for the mixture?
Potassium reacts with oxygen to make potassium oxide,K2O. What is the maximum mass (g) of K2O(s)that could be prepared from 8.24 g of K(s) and 2.64 g ofO2(g)?
The force in the cable is F= (3200 t^2) N, where t is in seconds. (Incline is a 17-8-15 triangle) If the car has an initial velocity v1= 2m/s at s= 0 and t= 0, determine the distance it moves up the plane when t= 3s.
Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 3200 N on the car. (a) What is the coefficient of static friction between the track and the car's tires?
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