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Explain a compound made up of C, H, and Cl contains 55.0 percent Cl by mass. If 9.00 g of the compound contain 4.19 * 10^23 H atoms, what is the empirical formula of the compound?
A compound contains only carbon and nitrogen and is 46.2% carbon by mass. A gaseous sample of the compound has a density of 2.05 g/L at 927 torr and 105 °C
Predict if the following conditions would result in the formation of a preecipitate: a. 0.0025 M Fe3+ at pH 6.00 b. 0.0025 M Ba2+ and a 1.25x10-4 M solution of sodium sulfate c
at a fixed temperature equal moles of so2 g and o2 g are mixed in a constant pressure container the volume of the
What is the de Broglie wavelength (in nm) associated with a 2.50-g Ping Pong ball traveling 35mph?
what do you do when you are calculating the empirical and molecular formulas of a compound and the percent composition
Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2?
explain with the help of a suitable clearly-labeled diagram the difference between molecular fluorescence and
The solubility of nitrogen gas "N2" in water at 20oC and 520 mmHg is 5.0×10-4 mol/L. The Henry's law constant (in mol/L.atm) at 20oC for the solubility of nitrogen gas in water is: A) 7.3×10-4 B) 7.1×10-4 C) 6.9×10-4 D) 6.7×10-4 Show steps please.
An aqueous solution is made by dissolving 0.17 mol MgCl2 in 550. g water. What is the freezing point of this solution
Calculate the energy required to heat 1.30 kg of ethane gas (C2H6) from 27.0°C to 78.0°C first under conditions of constant volume and then at a constant pressure of 2.00 atm. Calculate ?E, ?H, and w for these processes
the calcium oxide is added to seawater and a number of changes occur. first calcium oxide reacts with water to form
Assuming that the solution volume remains constant at 125mL. find the molarity of the final KBr solution?
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