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Two beakers of 0.1molal glucose aq solution and 0.2 molal urea AQ SOLUTION ARE kept in a closed bell jar. they contain 200ml solution. what will be the volume in each beaker after some time?
A solution is prepared by mixing 5.00 grams of compound Z (molar mass is 15.00 g/mol) in 100.0 mL of water. The density of the solution is 1.08 g/mL. Calculate the molarity of the solution.
Some hypothetical metal has the simple cubic crystal structure (i.e., atoms positioned at each of the eight corners with atoms touching one another along cube edges). Calculate its atomic weight if its atomic radius and density are 0.153 nm and 8...
Calculate the volume of 1M solution of HCL needed for 1 unit shift of the pH of the following solutions: A. 100 mL of 0.01 M solution weak acid (pKa = 6) and 0.05 M of its sodium salt
What is the volume of Ammonia gas is dissolved in 40.0 mL of 15.0 M NH 3 solution at STP and Determine what is the vapor pressure of a solution made by dissolving 65.4grams ammonia in 259 grams of H 2 O at 55.0 ºC?
Assume that the initial purple solution is 16.05mg/L in sodium salicylate, 0.15M in HCl and 0.065 M in iron(III) ions. What are the concentrations of these three once you diluted the 10.00 mL to a final volume of 50.00 mL in the volumetric flask
Calculate the pH of the solution made by adding 0.50 mol of HObr in 0.30 mol of KOBr to 1.00 L of water. The value of Ka for HObr is 2.0 * 10^-9
The legal definition of intoxication, in many states of the U.S. is that the BAC is 0.08 or higher. What is the concentration of the alcohol, in terms of molarity in blood if the BAC is 0.08
Analyzing a new reaction Consider the following elementary steps that make up the mechanism of a certain reaction: 2X -> Y + Z Y + L -> M + Z Part A What is the overall reaction
In a gas mixture, the partial pressure are argon 415 mmHg, neon 75mmHg, and nitrogen 125 mmHg. What is the total pressure (atm) exerted by the gas mixture
Calculate the pH of a buffer solution obtained by dissolving 20.0 g of KH2PO4(s) and 30.0 g of Na2HPO4(s) in water and then diluting to 1.00 L.
What would be the best indicator for the titration of 0.20 M CH3COOH titrated with 0.2 M NaOH? (Ka for acetic acid = 1.8 X 10-5) The pH ranges for the color change of some common acid base indicators are given below
An allosteric enzyme that follws the concerted mechanism (MWC model) has T/R ratio of 300 in the absence of substrate. Suppose that a mutation reversed the ratio.
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