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If 5.25 mL of 0.100 M NaOH solution is needed to just neutralize excess acid after 20 mL of 0.500 M HCL was added to 1.00 g of the antacid, how many moles of acid can the antacid counteract per gram?
explain why ethanamine (ethylamine) initially forms a white precipitate when added to a solution of aqueous copper sulphate (CuSO4).
Hemoglobin, a nonelctrolyte is an iron containing protein found in red blood cells. The osmotic pressure of 25.0 mL of an aq. soln containing 0.658 g of hemoglobin is 9.88x10^-3 atm at 25.0 *C. Determine the molar mass of hemoglobin
Fish produce glycerol to survive the freezing waters of the Arctic. Determine the degree to which the freezing point of blood and other biological fluids is lowered with the help of glycerol. What is the ideal concentration range of glycerol requi..
One molecular form of elemental sulfur is a ring of eight sulfur is a ring of eight sulfur atoms. As one molecule of this element is burned to make sulfur trioxide, how many oxygen molecules are used?
the xy-plane and the C-atom skeleton lies on the x axis, what is the hybridization of C for the right-side CH2 group?
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 300mL of a solution
Zinc metal reacts with hydrochloric acid according to the following equation: Zn + 2HCl --> ZnCl2 + H2. How many grams of hydrogen gas can be obtained if 50.0 g of zinc react completely?
A 40 foot fiberglass boat hull weighs 2000 kg. 60% of that is a fully cured crosslinked polyester resin (the remainder is the glass reinforcing fibers, pigment, fillers, etc.).
element z has two isotopes: one has mass number of 19.0 amu is 55.0% abundant,and the isotope with mass number 21.0 amu is 45.0% abundant. what is the average atomic mass for element Z?
Develop a crystal field splitting diagram for the following geometries by considering the crystal field generated by the ligands interacting with the d orbitals on the metal (ML2).
estimate the enthalpy change for the reaction between 1 mol c2h5oh as liquid ethanol, a fuel made by fermenting corn, and o2 to yield co2 and h2o under standard conditions by using bond enthalpies,
What mass of NaOH is needed to precipitate the Cd^{2+} ions from 38.0 mL of 0.480 M Cd(NO_3)_2 solution
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