If 500g of water is added to 75g of 2.5 m of NaCl, what is the mass percent of NaCl?
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A .500g sample of KCl is added to 50g of water initially at 25 degrees celsius in a calorimeter. The final temperature of the solution is 23.95 degrees celsius. What is the heat involved in the dissolution of .500g KCl, assuming the heat capacity of the solution is 4.184J/g degrees celsius?
A .500g sample of KCL is added to 50g of water initially at 25 degrees celsius in a calorimeter. The final temperature of the solution is 23.95 degrees celsius. What is the heat involved per mol of KCL?
Work of 1800 J is done by stirring a perfectly insulated beaker containing 75g of water. a. What is Q ( heat added or removed) for this process? b. What is the change in the internal energy of the system? c. What is the change in the temperature of the water.
A 500g lump of clay is flying horizontally at 2.5 m/s when it hits a stationary vertical uniform rod, hitting it at 25 cm below the top. The bar is 0.75m long, has a mass of 2.2 kg, and is hinged at its base. The lump of clay sticks to the bar. What is the magnitude of the angular velocity of the bar just after the collision? A. 5 rad/s B. 1.2 rad/s C.0.7 rad/s D.1.5 rad/s E. 2.7 rad/s...
Prepare 1 M NaCl in 150 mL of DI water. Calculate the weight (g) of NaCl that I added to DI water to obtain a 1 M NaCl solution. Show your work. (MW NaCl = 58.44 g/mol).
33) If 100. mL of water is added to 25 mL of 5.0 M NaCl solution, what is the final concentration? 34) Calculate the volume of 0.123 M AgNO3(aq) needed to form 0.657 g of Ag2SO4(s) according to the chemical equation: 2AgNO3(aq) + H2SO4(aq) -----> Ag2SO4(s) + 2H20(1). 35) Calculate the concentration of a KCl solution prepared by adding 200. mL of water to 100 mL of 12% KCl solution.
Data Table B: Dilution 5.5 M Assigned Molarity » Volume of 2.00 M NaCl added to flask (mL) 7 Mass of evaporating dish (9) Procedure Part B 8 Volume of solution (L) Mass of evaporating dish and diluted solution (9) Mass of diluted solution (g) 10 Volume of diluted solution (L) 11 • Reset the experiment. Using the concentration of the stock found with the purple tool from before and the desired final volume of 1.00 L and final concentration...
2.613 g of NaCl (s) is added to 150.0 mL of water, H2O (l). What is the molarity of this solution?
Question 25 What volume of 2.5 M NaCl solution contains exactly 58.44 g of NaCl? O 0.40L O 1.4L O 0.65L O 2.8L
Suppose a 12.42g mixture of NaCl and CaCl2 is dissolved in water. To this solution, an excess of AgNO3 solution is added resulting in the formation of 31.12g of the precipitate. Calculate the % by mass of NaCl and CaCl2 in the original mixture. Show all work.