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Any feedback/how to would be great Calculate the concentrations of all species present in a 0.25 M solution of ethylammonium chloride (C2H5NH3Cl). [C2H5NH2]_____ M [H+]____M [C2H5NH3+] ___ M [Cl -] ___M [OH -] ____M
Your friend decides to decrease cooking time for spaghetti noodles by adding table salt to 2.0 L water. How much table salt (NaCl) must be added to the water in order to raise the boiling point by 4.0?C? (Kf = 1.86?C/m, Kb = 0.512?C/m)
A 48.3ml sample of gas in a cylinder is warmed from 22C to 87C. What is its volume at the final temperature?
A metal, M, can readily form the M+ cation. A nonmetal, X, is a gas at room temperature and can easily form the X- anion. Is the product of the reaction of M and X a molecule or an ionic compound?
how many moles of dinitrogen tichloride correspond to 645 mg of dinitrogen trichloride? how many nitrogen atoms would
When atoms of the hypothetical element X are placed together, they rapidly undergo reaction to form the X2 molecule: Would you predict that this reaction is exothermic or endothermic. Explain.
an automobile gasoine tanks holds 42 kg of gasoline. when the gasoline burns 147 kg of oxygen are consumed and carbon
Draw the expanded structural formula for the following condensed formula.
Molecular formula of a compound and Deduce from these data the corresponding equation and write formulas for the oxide and sulfate of M .
a helium-filled weather balloon is launched from the ground where the pressure is 752 mmHg and the temperature is 21 degrees celsius. under these conditions its volume is 75.0 L.
Calculate the mass percent (m/m) for the solute in each of the following solutions: Express the answer using 2 sig figures.
Calculate the concentration of IO3- in a 3.02 mM Pb(NO3)2 solution saturated with Pb(IO3)2. The Ksp of Pb(IO3)2 is 2.5 × 10-13. Assume that Pb(IO3)2 is a negligible source of Pb2 compared to Pb(NO3)
In a laboratory synthesis , a student begins with 5.00ml of acetic anhydride (density = 1.08 g / mL) and 2.08 of salicylic acid. Once the reaction is complete, the student collects 2.01 g of aspirin . Determine the limiting reactant , theoretical ..
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