How much 1.0 m naoh should be added
A 1.0 L solution has a mixture of 0.05 M NaH2PO4 (pKa = 6.86) and 0.10 M Na2HPO4. How much 1.0 M NaOH should be added to bring the solution to pH 7.4?
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What volume would this air occupy if it were at 25.0°C under a pressure of 5.00 102 atm (a typical pressure in a compressed air cylinder)?
Imagine that you have a 7.00 gas tank and a 2.50 gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch. If you fill the larger tank with oxygen to a pressure of 135 , to what pre
The force exerted on the cue ball by the cue is horizontal. Determine the value of h for which the ball rolls without slipping. (Assume that the frictional force exerted on the ball by the table is negligible.)
The density of H2O2 is 1.463g/mL and the density of O2 is 1.428 g/L. How many liters of O2 can be made from 55.0 mL of H2O2? How many liters of O2 will form if 22.5 g H2O2 react?
A 300kg compressor is placed at the end of a cantilever beam of length 1.8 m made of a material with an elastic modulus of 200*10^9 N/m^2. The beam has a moment of inertia of 1.8*10^-5 m^4.
An excess of zinc metal reacts with 500. mL of 12M hydrochloric acid and produces 48.8 L of hydrogen gas at 20 degrees C and 750 torr. Determine the mass of zinc metal reacted.
POCl3(g) POCl(g) + Cl2(g) is at equilibrium. Which of the following statements describes the behavior of the system if the partial pressure of chlorine is reduced by 50%?
What mass of CCl2F2 substance must evaporate in order to freeze 135 g of water initially at 15 degrees celsius? (The heat of fusion of water is 334 J/g the specific heat of water is 4.18 J/gK .)
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