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A wine you are creating needs to have a sugar level of 2.4 g/L. You have 519 gallons of the wine, with a current sugar level of 0.05 g/100ml
The concentrate you have at your disposal to sweeten the wine has a sugar concentration of 68.0g/100ml
What is the minimum number of 1.0 L bottles of concentrate needed to make the wine have the correct level of sugar? Remember to show all work, units and assumptions.
A 12-ppm solution of lead gives an atomic absorption signal of 8.0% absorption. What is the atomic absorption sensitivity
When a 2.691 g sample of the unknown organic compound is vaporized at 90.0(degrees)C and 708. mmHg it is found to occupy a volume of 1.00L.
A 155 g sample of an unknown substance was heated from 25.0°C to 40.0°C. In the process, the substance absorbed 5696 J of energy. What is the specific heat of the substance?
What might happen to your calculated NaOH morality if you use tap water rather than deionizer (purified) water to dissolve the KHP crystals or to rinse down the walls of the flask during the titration
Extract a solute from 100 mL of water using only 300 mL of ether. The partition coefficient between ether and water is 3.0. Calculate q, the fraction of solute that would remain in the water under each of the following extraction conditions
George is measuring pH in a lab where the temperature is 58 C. If the pH goes up by one pH unit, what will be the change in mV of his glass electrode?
Explain why the salt of a weak acid, as well as the acid itself, must be present to form a bu?er solution.
A sample of ammonia gas is completely decomposed to nitrogen andhydrogen gases over heated iron wool. If the total pressure is 603mmHg, calculate the partial pressure of N2 and H2
what volume of 0.684 m mno4- solution is required to react completely with 27.50 ml 0f 0.250 m fe? this is an
Calculate the pH at the equivalence point in the titration of 56 mL of 0.10 M methylamine (see Table 15.4) with a 0.20 M HCl solution.
A 0.0490 molal aqueous NaBr solution freezes at -0.173°C. What is its apparent percent dissociation in this solution? Kf = 1.86°C/m for water. NaBr -> Na+ + Br-
What types of intermolecular forces are present in P4. Dipole is there due to the loan pairs on Phosporus atoms. Or, is it only dispersion forces.
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