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A solution is prepared by dissolving 396 gof sucrose (C12H22O11)in 604 gof water. What is the vapor pressure of this solution at 30 °C?(The vapor pressure of water is 31.8 mmHgat 30 °C.)
1)The volume of a single rhodium atom is 1.01×10-23cm3. What is the volume of a rhodiumatom in microliters? 2) The radius of a vanadium atom is 130 pm. How many vanadium atoms would have to be laid side by side to span a distance of 4.61 mm?
Question- The following molecular equation represents the reaction that occurs when aqueous solutions of lead(II) nitrate and barium chloride are combined. Pb(NO3)2 (aq) + BaCl2 (aq) PbCl2 (s) + Ba(NO3)2 (aq)
What is the osmotic pressure of a solution made from dissolving 55.0 of glucose, , in 200 of water at 29.0
NaOH solution were necessary to reach the equivalence point, what is the concentration of the NaOH solution? (Make sure to report the correct number of significant figures?
What is the percent dissociation of HNO2 when 0.056 g of sodium nitrite is added to 115.0 mL of a 0.057 M HNO2 solution? Ka for HNO2 is 4.0 × 10-4.
What is the equilibrium composition of a reaction mixture if we start with 0.500 mol each of H2 and I2 in a 1.0-L vessel. The reaction is H2(g) + I2(g) 2HI (g) Kc is 50.5 at 448 degree Celsius
the pH of a neutral solution is 7.83. What is the value of Kw at that temperature?
Calculate the wavelength in picometer of gamma ray radiation whose frequency is 9.74 × 1019 Hz. Express answer in scientific notation.
Write a net ionic equation for the reaction that occurs when excess hydriodic acid (aq) and iron(II) sulfide (s) are combined.
A molecule of unknown structure has a molecular formula of C9H8O2. In the infrared spectrum there are absorptions at 1761, 1145, and 761 cm-1. In the 13C NMR spectrum,
If Barnase is a two-state protein that is denatured in guanidium hydrochloride (GdnHCl). Barnase is 50% unfolded in 3 M GdnHCl, but 99% folded in 0.03 M GdnHCl. If 3 M solution of Barnase is diluted by a factor of 100
Hypotonic solutions cause red blood cells to A. shrivel B. burst C. no effect on red blood cells
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