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You have a solution of sodium nitrate containing 140 g at 65 degrees celcius. How many additional grams of solute must be added to it to make the solution saturated.
A certain reaction, a+b=c is the first order with respect to each reactant, with k=1.0x10-2l.mol-1s-1. Calculate the concentration of A remaining after 100s if the initial concentration
What was the concentration of the unknown HClO4 solution? The neutralization reaction is: HClO4(aq)+NaOH(aq)==>H2O(l)+NaClO4(aq)
Heavy water has a formula D2O, and semi-deuterated water has the formula DHO, where D stands for deuterium. Using the data below, etimate the percentages of D2o and DHO present in natural water
Compound A is C4H9Cl and shows two 13C NMR resonances. Compound B is an isomer of compound A; it shows four 13C NMR resonances, and in the spin-coupled mode the resonance farthest downfield is a doublet. Identify compound A
A piece of metal of mass 27 g at 99?C is placed in a calorimeter containing 45.1 g of water at 21?C. The final temperature of the mixture is 38.7?C.
Write a net ionic equation to explain why the pH didn't go up to about 10, as it would have if that amount of NaOH were added to distilled water or to 20mL 0.00040 M HCl, which also would have a pH of 3.40
Calculate the minimum number of grams of propane, C3H8(g), that must be combusted to provide the energy necessary to convert 3.28 kg of ice at -11.0°C to liquid water at 80.0°C.
What was the concentration (mol/L) of the permanganate solution. Submit answers correct to two decimal places.
Draw the major, neutral organic product for each substitution reaction below
Compute the final temperature of the mixture (assuming no heat loss to the surroundings). The heat capacities of H2O(s) and H2O (l) are 2.08 and 4.18 J/g · °C, respectively, enthalpy of fusion for ice = 6.02 kJ/mol.
Determine the mass, of: a.30.0 mL of the liquid propylene glycol, a moisturizing agent for foods,
A piece of copper with a mass of 218 grams has a heat capacity of 83.9 J/degrees C. What is the specific heat of copper.
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