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Gravitational attraction between two masses is equal to 1.6 N at a distance between them to equal 0.5 m. What is the gravitational force between the masses if the distance rises to 1 m?
a 90 antifreeze solution is to be mixed with a 75 solution to make 30 liters of an 80 solution. how many liters from
a solution of vinegar is 5.40% by mass acetic acid in water. assuming the density of vinegar is 1.00g/mL, what is the molarity of the acetic acid?
Alpha terpene, C10H16, is a pleasant-smelling hydrocarbon that has been isolated from oil of marjoram. On hydrogenation over a palladium catalyst, alpha terpene reacts with two molar equivalents of H2 to yield a hydrocarbon C10H20
The equilibrium constant has a value of 0.30. Assume 0.20 mol of A and 0.50ml of B are dissolved in 1.00L and the reaction proceeds. Calculate the concentration of reactants and products at equilibrium
a 0.6447-g portion of manganese dioxide was added to an acidic solution in which 1.1402g of a chloride containing
portion of that solution is diluted by adding 167 mL of water. What is the final concentration? Assume the volumes are additive.
The normal boiling point of water (delta H vap = 40.7 kJ/mol) is 100c. At the summit of mount Everest the boiling point of water is 70 c. Calculate the pressure in (torr) at the summit of Mount Ev.
If the overall of the coupled reaction is -7.60 , what is the equilibrium constant, , of the first reactions at 6? The for the hydrolysis of ATP to AMP is 31.6.
the so2 concentration in a stack is 400 ppm the stack diameter is 10 ft and the stack gas velocity is 50 ftsec. the gas
Problem- In the boxes below draw the lewis structure for each of the four compounds whose NMR spectra were recorded. Using letters (abc) mark each set of F atom that are in unique environments and produce separate peaks in NMR spectra
What is the entropy change for the reaction 2H2(g) + O2(g) 2H2O(l) at 372.2 K and 1.0atm? the enthalpy of reaction at 298.2K and 1.0atm is -572 KJ. The Cp values for H2, O2 and H2O are respectively
A box contains a mixture of small copper spheres and small lead spheres. The total volume of both metals is measured by the displacement of water to be 432 cm^3 and the total mass is 4.32 kg
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