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1. Two metal strips weighing 100g each that are placed into a cylinder that contains H2O.In one case we observed the volume of water displaced is 8.8mL and in other case The volume of water displaced is 37.0mLdetermine the two metal strips. ?
2. Calculate the pressure in the flask in atmospheres and torr also If the sealed-tube manometer in had a height difference of 20.0 inches between the Hg levels?
What are the direction and magnitude of the velocity of plane 1 relative to plane 2? What is the Degrees? ° north of east
Calculate the pH of the buffer if 2.0 mL of 0.0125 M HCl is added to the buffer prepared in question 3. What is the % change in the pH of the buffer?
If matose is made up of two alpha D-glucose units connected together by an alpha(1-4) linkage, how can it give a positive test as a reducing sugar?
Using the following equation: 2AgNO3+MgBr2->2AgBr+Mg(NO3)2 calculate the moles of silver bromide and magnesium nitrate produced by 85 mol of magnesium bromide reacting with silver nitrate.
If oxygen gas were collected over water at 295K and the total pressure of the wet gas were 710 mm Hg, what would be the partial pressure of the oxygen
What kinetic energy must the electrons have in order to resolve a protein molecule that is 4.60 nm in diameter. Take the mass of an electron to be 9.11× 10-31 kg.
What are the concentrations of HSO4-, SO42-, and H+ in a 0.14 M KHSO4 solution? (Hint: H2SO4 is a strong acid; Ka for HSO4- = 1.3 10-2.)
A sample of argon gas at a pressure of 0.981 atm and a temperature of 29.7oC, occupies a volume of 12.5 liters. If the gas is allowed to expand at constant temperature to a volume of 19.1 liters, the pressure of the gas sample will be
determine the most important part in chemical bond formation, coulomb, J, or the Exchange, K, term. What is the interpretation of this key result
Use the reactions below and their equilibrium constants to predict the equilibrium constant for the reaction, 2A(s) 3D(g).
What is the molarity of an HCl solution if 23.3 mL of the solution is required to react with .266 g of Na2CO3
The Ksp of calcium hydroxide, Ca(OH)2, is 5.02 × 10-6. Calculate the solubility of this compound in g/L.
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