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A newly discovered gas has a density of 2.39g/L at 296K and 715 mm Hg. What is the molar mass of the gas?
Determine the Osmotic Pressure for the following aqueous solutions @ 25 degrees Celsius. (a.) 1.0. M Glucose, and (b.)1.0 M NaCl. Explain which solution has the greater osmotic pressure if any and why.
A solution of H2SO4(aq) with a molal concentration of 3.58 m has a density of 1.200 g/mL. What is the molar concentration of this solution
If 0.200 M NaI is slowly added to 20.00 mL of a solution that is 0.0500 M Pb2+, 0.0400 M Hg22+, 0.0600 M Ag2+, and 0.0800 M Tl+, in what order do the iodides precipitate
Show how to make N-methylpropionamide using propionic acid and methylamine and other necessary reagents. The methylamine and propionic acid do not both have to be used in the first step.
Which best describes a solid?
500cm3 of 0.250M of Na2SO4 is added to an aqueous solution of 15.0g of BaCl2 resulting in a white precipitate of insoluble BaSO4.
Calculate the pH after 0.020 mol of NaOH is added to 1.00 L of a solution consisting of 0.100 M HONH2 and 0.100 M HONH3Cl.
What was the initial temperature of the Cu metal If the final temperature of the Cu-H 2 O mixture was at twenty five degree celsius? (The specific heat of copper = 0.377 J/(g°C).)
You are performing site-directed mutagenesis to test predictions about which residues are essential for a protein's function. Which of each pair of amino acid substitutions listed below would you expect to disrupt protein function the most
Blood alcohol content (BAC) is often reported in weight-volume percent (w/v%). For example, a BAC of 0.08% corresponds to 0.08 g CH3CH2OH per 100 mL of blood. In Ontario, and the rest of Canada, the maximum legal BAC for fully licensed drivers is ..
In a laboratory synthesis , a student begins with 5.00ml of acetic anhydride (density = 1.08 g / mL) and 2.08 of salicylic acid. Once the reaction is complete, the student collects 2.01 g of aspirin . Determine the limiting reactant , theoretical ..
A solution was prepared by dissolving 28.0g of KCl in 225g of water. Calculate the mass percent of KCl in the solution.
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