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if a saturated solution of NH4NO3 at 70 degrees Celsius was cooled to 10 degrees Celsius, how many grams of solute will separate if the quantity of the solvent is 98 grams?
If 125 cal of heat is applied to a 60.0 g piece of copper at 25.0 C, what will the final temperature be? The specific heat of copper is 0.0920 cal/(g.C}) .
Chlorine has an average atomic mass of 35.453 amu. The main isotopes of chlorine are 35Cl which has an atomic mass of 34.968 amu and 37Cl, which has an atomic mass of 36.956amu. Given this, what is the percent abundance of each isotope in natural ..
What is the molar mass of adrenaline in a solution of 0.64 g of adrenaline in 36.0 g of CCl4 elevates the boiling point by 0.49?
Write a chemical reaction equation that shows what happens when HNO3 is added to MnCO3. Remember to include the physical state symbols.
Calculate the pH of a buffer solution prepared by dissolving 0.200 moles of benzoic acid (C6H5COOH) and 0.450 moles of sodium benzoate (C6H5COONa in enough water to make 1.00 L of solution
The specific internal energy of helium at 300k and 1 atm pressure is 3800j/mol and the specific molar volumeat thesame temp. and pressure is 24.63l/mol.
Calculating Volume Needed for Level of pH, A 1.00g sample of benzoic acid (C6H5CO2H, FW = 122.12g/mol,Ka = 6.5 x 10^ -5) is dissolved in water to give a solution with a volume of 500mL.
a system conducts 192 cal of heat to the surroundings while delivering 322 cal of work. what is the change in internal energy of the system (in cal)?
Calculate ΔH° for the reaction -> 2 K(s) + 2 H2O(l) 2 KOH(aq) + H2(g) A 4.85-g chunk of potassium is dropped into 1.06 kg water at 24.0°C.
how many milliliters of 0.0850 m NaOH are required to titrate each of the following solutions a) 40.0 ml of 0.0900 m HNO3 B)35.0 ml of 0.080 m HC2H3O2 c) 50.0 ml of a solution that contains 1.85 g of HCl per liter.
What mass of HClO4 should be present in 0.600 L of solution to obtain a solution with a pH of 2.50?
What factor determines whether a carbon atom in a compound is chiral? Draw the Lewis structure for each of the following functional groups: alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine.
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