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What would the net ATP yield if a muscle cell takes a glucose molecule, stores it as part of a glycogen molecule and later releases it and sends it through glcolysis?
Studies are ongoing regarding the best metal to be a sacrificial anode to prevent corrosion of the rebar. Which would work better for the purpose, magnesium or zinc? Explain your answer based on the
If you weigh 670 on the earth, what would be your weight on the surface of a neutron star that has the same mass as our sun and a diameter of 19.0 ?
The "Zebra" cell was invented in 1985 in South Africa as part of the "ZEolite Battery Research Africa" project, and is used in all-electric municipal buses and other vehicles. It uses nickel and mol
How many electrons must aluminum lose before it can reach a stable electronic configuration? Use the table of ionization energy to justify your answer.
An element crystallizes in a face-centered cubic lattice. If the length of an edge of the unit cell is 0.408 nm, and the density of the element is 19.3 g/cm3, what is the identity of the element?
Hydrogen gas produced in the laboratory by the reaction of zinc and hydrochloric acid was collected over water at 25°C. The barometric pressure at the time was 742.5 mm Hg. What is the pressure
A sack of flour of mass 5.00-rm kg is lifted vertically at a constant speed of 3.50 m/s through a height of 15.0 m.How great a force is required? How much work is done on the sack by the lifting requi
A physiological saline solution contains 174mEq/L each of Na+ and Cl-. How many moles each are in 1.30L of the saline solution?
What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M methylamine, CH3NH2, with 25.00 mL of 0.10 M methylammonium chloride, CH3NH3Cl?
An unknown compound Y, C10H16, can absorb 2 equivalents of hydrogen gas to give 1-isopropyl-4-methylcyclohexane. The ozonization products are shown below. What is the structure of Y?
A student weighs out 10,000 grams of MgSO4 from a bottle. after heating, the sample was 5.720 g the chemical reaction that occurs upon heat a hydrate is: MgSO4 7H2O? How much water in grams was actu
Tarzan plans to corss a gorge by swinging in an arc form a hanging vine. If his arms are capable of exerting a force of 1400 N on the rope, what is the maximum speed he can tolerate at the lowest p
An aqueous solution that 2.10 in is slowly added from a buret to an aqueous solution that is 1.40×10-2 in and 0.250 in . When the second ion begins to precipitate, what is the remaining concen
The 7.0N frictional force is applied at a point 40cm from the chair's rotation axis, in the direction that causes the greatest angular acceleration. If that angular acceleration is 1.8rad/s^2, what
Calculate the wavelength of the photon emitted when the hydrogen atom undergoes a transition from n = 5 to n = 3. (R = 1.096776 × 107 m-1).
The following question refers to the following system: 3.5 x 102 mL of 3.2 M Pb(NO3)2 and 2.0 x 102 mL of 0.020 M NaCl are added together. Ksp for the lead chloride is 1.6 x 10-5. Determine the equ
A 1.5g sample of unknown alkali metal carbonate was dissolved in water, and 31.10mL of 0.350M CaCl2 was required to precipitate all the carbonate ions as CaCO3. Give the name and formula of the unkn
A truck travels 1350 m uphill along a road that makes a constant angle of 4.42 degrees with the horizontal. Find the magnitude of the truck's vertical component of displacement, answer in units of m
A student titrates a soln containing 0.254 g of a monoprotic acid in 35 ml of water. the student reaches the endpoint after adding 18.35 ml of 0.107 M NaOH. How many moles of the acid are present i
The majority of cholesterol use in the body is for
The first and second ionization constants of H2CO3 are 4.2×10-7 and 4.8×10-11. Calculate the concentrations of H+ ion, HCO3-, CO32- and undissociated H2CO3 in a 0.080 M H2CO3 solution.
A falling stone takes 0.28 s to travel past a window 2.2 m tall as shown in the figure on the right. From what height above the top of the window did the stone fall?
a compound is determine to contain 4.36g phosphorus and 5.64g oxygen and a molar mass of 284 g/mol. Determine the empirical and molecular formula of this compound.