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A student placed 17.0 g of glucose (rm C_6H_{12}O_6) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.-rm mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 20.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
The Ksp for PbSO4 = 2.53 X 10-8. What is the molar solubility of PbSO4 in a 4.20M solution of gallium sulfate?
Consider the following unbalanced reduction half equation. MnO4-+H=+e- > Mn2++H2O. How many H= are needed for the balanced half-equation.
While cytotoxicity, antiviral activity, and immunosuppressant properties of didemnin-C and of its 8 analogs were excellent to very good, these compounds were, unfortunately, dropped from further studies and development at the stage of human trials..
Nitrogen dioxide decomposes according to the reaction given below where Kp = 4.48 10-13 at a certain temperature. 2 NO2(g) 2 NO(g) + O2(g) A pressure of 0.23 atm of NO2 is introduced into a container
The chiral carboxylic acid A (C5H6O2) reacts with 1 mol of hydrogen gas on catalytic hydrogenation. The product is an achiral carboxylic acid B (C5H8O2). What are the structures of Compounds A and B?
what relative masses of dimethyl amine and dimethyl ammonium chloride do you need to prepare a buffer solution
after finding the kinetic trace by bleaching food dye and finding the concentration and then graphing.
The temperature of a block of copper metal (molar mass 63.55 g mol-1) fell by 8.52 K when the copper block released 64.5 J of heat. What is the mass of the copper block?
Calculate the amount of heat needed to convert 96 g of ice at -24C to water at 28C. The specific heat capacity of H2O(s) is 2.1J/g*C.
Physiological saline solutions used for intravenous injections have a concentration of 0.90% NaCl by weight
Calculate the concentration of a red dye solution with an absorbance of 0.617. If you have 5.78ml of the solution how many mg of red dye are found in the solution.
Imagine that you have a 6.50L gas tank and a 2.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
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