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A 27.75g piece of iron and a 26.70g piece of gold at 100C were dropped into 800mL of water at 24.05C. The molar heat capacities of iron and gold are 25.19J/molC and 25.41J/molC, respectively. What is the final temperature of the water and pieces of metal?
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure. Classify these structures by the hybridization of the central atom.
what is the total mass in grams of a series of samples that have masses of 753mg,
A galvanic (voltaic) cell consists of an electrode composed of chromium in a 1.0M Chromium(II) ion solution and another electrode composed of silver in a 1.0M silver ion solution, connected by a salt bridge.
If the reaction mixture initially contains only O2(g) and F2(g), then at equilibrium, the reaction mixture will consist of essentially only OF2(g).
Calculate the heat released when 2.00L of Cl2(g) with a density of 1.88 g/L react with an excess of sodium metal as 25°C and 1 atm to form sodium chloride. [H°f(NaCl) = -411.0 kJ/mol
In a solution of glucose and water, if 4.5% of the mass is glucose, how many grams of the solution contain 2.25 g glucose ?
A solution of sodium chloride in water has a vapor pressure of 20.3 torr at 25°C. What is the mole fraction of NaCl in this solution?
How many moles of Na2SO3 were added to the calorimeter cup if 30.0mL 0.50 M NaOCl and 70.0mL 0.50 M Na2SO3 were combined?
C2H4+2O2= 2CO+2H2O if 2.70 mol C2H4 is reacted with 6.30 mol O2 a. identify the limiting reagent b. calculate the moles of water produced
Consider that a benzene molecule could fit nicely within a two-dimensional square box with each side having length of 5 degree A. a. Calculate the four lowest energy levels for an electron confined
How many moes of diethylamine((C2H5)2NH, Kb-1.3E-3) must be added to 447ml of distilled water to produce a solution with a pH of 12.787? Can someone explain this step by step?
What mass of HCl is consumed by the reaction of 3.84 mol of magnesium?
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