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What is the mass in milligrams of solute in 656 ml of solution that contains 4.96 ppm Pb(NO3)?
What is the molarity of a solution obtained when a mass of 23.6 g of calcium chloride is diluted to a volume of 250 mL in a volumetric flask? The molarity is ___x10^___ M.
What is the cell potential when the concentration of Cu2+ has fallen to 0.250M? 2. What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370V?
Nutritional tables give the potassium content of a standard apple (3 apples/lb) as 159 mg. How many grams of potassium are in 3.58 kg of apples
The equilibrium constant Kp for the reaction CO(g)+Cl2(g) COCl2(g) is 5.62x10^35 at 25 degrees c. Calculate delta Gof for COCl2 at 25 degrees.
Which components of an acrylamide gel effects qualities of the final product, and which components affect the speed of polymerization?
If a segment of DNA consists of 5'-TCTAGC-3', the nucleotide order in the complementary mRNA strand (written in 5' to 3') would be:
If a sample is composed of 39% of the lighter isotope (with the balance being 7Li), calculate the average molar mass of the sample.
A system that had work done on it but which receives or loses no heat from or to the surroundings has positive work or negative work; positive or negative delta E
Elemental phosphorus reacts with chlorine gas according to the equation: P4 (s)+ 6Cl2 (g) --> 4PCl3 (l) A reaction mixture initially contains 45.11 g P4 and 132.0g Cl2. Once the reaction has occurred as completely as possible, what mass (in g) of ..
Draw the product that is formed when (3R, 6R)-6-chloro-2,3-dimethyloctane reacts with sodium iodide in acetone
what is the molarity of a solution of silver perchlorate agclo4 if 3.2 moles of silver perchlorate is dissolved in 1.5
Water has a density of 1 g/cm3. How much pressure would a column of water exert that has a cross sectional area of 1 cm2 and a height of 100 cm
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