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A titration of two identical 20.00 mL samples of HBr was performed using 0.700 M KOH. The following data was collected: Burette Reading(mL) of KOH Trial 1 Trial 2 Trial 3 Initial 1.07 1.02 2.12 Final 33.42 30.18 31.32 Volume added What is the concentration of HBr?
give the structural formula of the organic products formed (if any) when (a) ethanal and (b) propanone are treated with:
A sample of ammonia occupies 32.5 Liters at -28 centigrade and 452 torr. What volume will it occupy at STP
calculate the amount of the impure sample one should weigh out on the analytical balance in order to titrate 25.00 mL of a 0.1000M solution of NaOH. Use dimensional analysis.
Question- Part 1) Calculate the pH of the aqueous solution resulting from the addition of 22.00 mL of 0.09550 M NaOH and 22.00 mL of 0.09550 M acrylic acid, HC3H3O2.
A certain metal, M(s), reacts with O2(g) to form M3O4 (?H°f = -418 kJ/mol). What is ?H° in kJ for a reaction where 2.32 mol of M and excess oxygen form M3O4
Problem- A 170.0 g sample of metal at 79.00*C is added to 170.0 g of H2O(l) at 14.00*C in an insulated container. The temperature rises to 16.19*C. Neglecting the heat capacity of the container, what is the specific heat of the metal? The specific..
Organic chemistry, When 2-butene reacts with hydrogen chloride gas, only one product is detected, whereas when 1-butene reacts similarly
What specific observation identifies the endpoint of the titration. What is the molar concentration of K+ (aq) in the reaction mixture at the equivalence point
A buffer solution is prepared by dissolving 0.35 mol of NaF in 1.00 L of 0.53 M HF. Which of the following is true about the chemicals in solution?
a how many atoms of helium gas fill a spherical balloon of diameter 31.0 cm at 18.0degc and 1.00 atm?b what is the
If magnesium oxide smoke has been lost in too great an amount during the heating of the crucible would this have made the calculation % Mg in the product too high or too low? Explain.
Explain how many values are there for the magnetic quantum number when the value of the angular momentum quantum number is 3
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