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A 19.0 kg piece of zinc at 67 degrees Celsius is placed in a container of water. The water has a mass of 23 kg and has a temperature of 9.4 degrees Celsius before the zinc is added. What is the final temperature of the water and zinc?
A 1-L flask is filled with 1.30 g of argon at 25 degrees Celsius. A sample of ethane vapor is added to the same flask until the total pressure is 1.05 atm. What is the partial pressure of argon in the flask?
What length of time (minutes) would be required to plate 12.25 g of nickel from a NiCl2(aq) solution?
The vapor pressure of water at 26 degrees C is 25.209 mmHg. How many moles of gas were collected?
Write the balanced formula unit equation for the reaction of sodium with oxygen (use major product). What is the sum of the coefficients
The relationship (if any) of the lattice energy of compounds such as ZnO vs. H3BO3 vs. their respective solubilities. For instance, at neutral pH and standard conditions
26.0cm of a solution containinh 1.86g of X2CO3 in 250 reacted completely with 27.0cm of solution contain 3.65g of HCL per dm,calculate the molar mass of X2CO3 and relative atomic mass of X, and identify X.
a 6.0-g sample of [Ni(H2O)6]Cl2 is dissolved in aqueous solution. If an excess of ethylenediamine (en) is added to the solution, solid [Ni(en)3]Cl2*2H2O forms. What is the theoretical yield of product from the reaction?
Determine the mass of solid sodium formate of MW 68.0 must be combined to 150 mL of 0.66 mol/L
A reaction mixture at 175 initially contains 522 torr of NO and 421 torr of O2. At equilibrium, the total pressure in the reaction mixture is 748 torr. Calculate Kp at this temperature.
How many grams of Na3PO4 is needed to produce 575mL of a solution that has a concentration of Na+ ions of 1.50M?
what is the partial pressure of argon? If the two flasksare connected through a stopcock and the stopcock is opened, whatis the total pressure?
Synthesis of a Liquid Crystal, experiment in which added 500 mg of cholesterol to 1.5 mL of dry pyridine. Then added 1.7 mmol of benzoyl chloride and heated the mixture.
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