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What is the purpose of telomeres in cells? And how does this relate to progeria syndrome?
Question- What volume of solution can be made from 1.35 g of NaOH if the desired concentration for the final solution is 0.225 M
Hydrogen gas has a Henry's law constant of 7.8 x 10 -4 mol/kgxbar at 25 C when dissolving in water. If the total pressure of gas (H2 plus water vapor) is 1.00 bar over water, what is the concentration of H2 in the water in g/mL
Determine the final temperature achieved in this expansion, and the corresponding work done by the gas for the cases that it is 1) Helium, 2) Krypton.
magnesium undergoes a single displacement raction with hydrochlic acid. how many grams of hydrogen gas will be produced from the reaction of 3.00 g of magnesium with 4.00 g of hydrochloric acid? identify the limiting and excess reactants.
A 9.75-L container holds a mixture of two gases at 45 °C. The partial pressures of gas A and gas B, respectively, are 0.186 atm and 0.820 atm. If 0.190 mol of a third gas is added with no change in volume or temperature, what will the total pr..
how the isomerization from trans to cis isomer might occured. How does this compare to the isomerism of trans-[Co(NH3)4Cl2]Cl?
Explain how this model can be used to reduce the number of dangling bonds from 49 (unreconstructed) to 19 (constructed). B. Explain the origin of the name dimer adatom stacking fault.
Tartaric acid, which occurs in many fruits, has a molar mass of 150.1 g/mol and contains 63.96% oxygen by mass. How many oxygen atoms are in each tartaric acid molecules.
Zinc dissolves in acid according to the balanced reaction: Zn(s) + 2H^+(aq) -> Zn^2+(aq) + H2(g) A sample of zinc is placed in the ice calorimeter. If 0.0657g of zinc causes a decrease of 0.109mL in the ice/water volume of the calorimeter
The hydrolysis of glucose-1-phosphate to glucose and Pi has a standard free energy of -5 Kcal/mol. What's the equilibrium constant for the reaction
What must be the initial concentration of reaction, [A]0, if (a) the zero- and first-order; (b) the zero- and second-order; (c) the first- and second-order reactions are to have the same half-life?
A calibration curve for absorbance versus the concentration of the chemical indicator crystal violet is found to have a slope of 19. If a sample of unknown concentration has an absorbance of 1.32
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