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A sample of gas weighs 4.542 grams and has a volume of 870.0 mL at 945.0 torr and 39.0 degrees Celsius. What is its molar mass?
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Explain why the mass of the crucible and anhydrous salt is less than the mass of the crucible and the hydrate. What is the chemical formula of copper (II) sulfate?
A 20.0 mL sample of 0.200 M HBr solution is titratedwith 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added. (19.8 mL)
What is the molarity of a solution made by dissolving 20.0 g of CrCl2 in 0.150 L of solution?
What is the mass percent of oxygen in Manganese (IV) phosphate? How many cubic feet (ft 3 ) are 5.14E+08 gallons (gal) of water? The density of water at ambient conditions is 1.000 g/mL
What is the volume of a solution, in milliliters, that contains 1.5 g LiNO3 and has a concentration of 0.40 M?
The following sequence of reactions occurs in the commercial production of aqueous nitcric acid: 4NH3(g)+ 5O2(g) -> 4NO2 (g) + 6H2O(l) ΔH = -907 kJ 2NO(g) + O2(g) ? 2NO2(g) ΔH= -113 kJ 3NO2 + H2O(l) -> 2HNO3(aq) + NO(g) ...
A chemistry lab experiment requires 67.4 grams of silvernitrate. How many grams of a 15.5% by mass solution of silvernitrate should be used?
Please attach sources.websites used if any. Thanks! Determine the mass of chlorine in the original sample (39.096g) as the difference in mass between the anhydrous sample (38.585g) and the mass of copper. From the mass o ...
15 grams of NaCl is dissolved completely in a beaker containing 200mL of water. What is the Na+ concentration in moles/liter in the final solution?
0.394 mol of a solid was dissolved in 340 mL of water at 26.9 oC. After the solid had fully dissolved, the final temperature of the solution was 31.6 oC. What is the molar heat of solution of the substance?
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