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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.
What is numerical value of the equilibrium constant for the reverse reaction?
A solution of NaOH(aq) contains 8.7 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C.
At 0.0 C, if the volume of air is 2 mL and the pressure of the atmosphere that day is 665 mmHg, what is the number of moles of air?
explain why ethanamine (ethylamine) initially forms a white precipitate when added to a solution of aqueous copper sulphate (CuSO4).
Determine the limiting reactant and the numbers of moles of Cu will be formed If you place .092 mol of iron filling in a solution containing .158 mol of Copper sulphate,?
Suppose that you obtain 1.0 g of salicylic acid from the hydrolysis of 1.3 mL of methyl salicylate. Calculate your percent yield.
sample of this compound is combusted in excess oxygen and the products are 2.492 g of CO2 and 0.6495 g of H20. Determine the empirical formula of the active ingredient.
The hydrolysis of ethyl acetate (CH3COOC2H5) by sodium hydroxide yields ethanol (C2H5OH) and sodium acetate (NaO2CCH3) by the reaction shown
What are the resonance structures and intermediates in the formation of bromoacetanilide from the reaction of acetanilide and bromine liquid with acetic acid
A well-insulated rigid tank of volume 0.2 m3 initially contains helium at 70°C and 200 kPa. A valve connected to the tank is opened, and helium is withdrawn slowly until the pressure within the tank drops to p. An electrical resistor inside the ta..
A 21.70mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in the titration of a 3.06g sample of vinegar. calculate the number of moles of acetic acid in the vinegar sample.
Assuming the mixture has the same specific heat (4.184J/goC) and density (1.00 g/cm3 or 1.00 g/mL) as water, calculate the heat (in J) transferred to the surroundings, qsurr
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