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Mom made the kids 2 L of Kool-Aid by mixing 5.0 g sugar (C12H22O11), 10.2 mg of Kool-Aid powder (a proprietary mixture of ingredients), and water. What is the concentration of sugar in the Kool-Aid solution? The molecular weight of sugar is 342.3 g/mol.
A) 2.4 × 10-2 M
B) 3.5 × 103 M
C) 8.0 M
D) 2.5 M
E) 7.3 × 10-3 M
Calculate the pH for an aqueous solution of acetic acid that contains 3.15 × 10-3 M hydronium ion.
Write balanced reaction equations for the two steps in the synthesis of 2-butoxynaphthalene.
From the 1H NMR spectrum of dibenzalacetone can you deduce what stereoisomer(s) of dibenzalacetone is (are) formed. The chemical shift of the alkene protons is downfield from the expected resonance. What is the shift due to
draw a lewis structure for one important resonance form of HAsO4 2-. In clude lone pair electrons and indicate nonzero formal charges
What is the mole fraction of 1.98 m Fe(NO3)3 (aq). The molar mass of Fe..=241.9g/mol and the molar mass of H2O is 18.02 g/mol
What is the energy, in J/photon, of electromagnetic radiation that has a frequency of 2.89 x 1015Hz ? Express your answer to 3 significant figures in scientific notation and do not include units.(4.45 x 10-3 can be represented in scientific notati..
Calculate the pH of a buffer solution formed by adding 28.75 grams of sodium lactate (NaC3H5O3) to 450.0 mL of 0.550 M lactic acid (HC3H5O3) solution
Calculate the pH of a buffer solution prepared by dissolving 4.3 g of NaHCO3 and 5.5 g of Na2CO3 in 0.20 L of water.
When you analyze the proteins by electrophoresis, you find that protein B moves further towards the positive end of the gel. Explain if this result is consistent with your hypothesis about the difference between the two proteins.
Calculate the maximum number of grams of phosphorus trichloride that could be formed from 44.1 grams P subscribe 4.
A solution contains 0.10 M I- and 0.10 M CO32-. In an attempt to separate the ions, Pb(NO3)2 is slowly added to the solution. (a) Identify the precipitates that could form and predict which precipitate will form first.
A 43.0 g sample of Fe metal at 90.0°C is placed into 150.0 mL of water at 22.5 °C. After equilibrium is reached the final temperature of the system is 24.5°C. What is the specific heat capacity of the metal
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