How would you prepare 250ml of a buffer having a ph of 360
How would you prepare 250mL of a buffer having a pH of 3.60 using 0.500M NaOH and 0.500M of HNO2? Would you calculate the molarities of the conjugate acid and base pair and then somehow get the volumes from that? Please explain
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block A (mass 2.28 kg) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 2.57 kg ), evaluate the tension in the cord
What observed rotation is expected when 1.58M solution of (R)-2-butanol is mixed with an equal volume of a 0.790 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sampling container that is 1 dm long
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A coil of 20Ω and inductance of 212mH is connectedin parallel with a 106μF capacitor. The circuit is connected over a 180V, 50Hz(variable frequency source) supply. 1.) Calculate the total Current drawn from the supply .
How would you prepare 250mL of a buffer having a pH of 3.60 using 0.500M NaOH and 0.500M of HNO2. Would you calculate the molarities of the conjugate acid and base pair and then somehow get the volumes from that
A sailboat runs before the wind with a constant speed of 3.7 m/s in a direction 32 degrees north of west. How far north has the sailboat traveled in 21 min
A 3-phase, 200 hp, 480 V, 6 pole, 60 Hz synchronous motor has asynchronous reactance x1= 1.5Ω and x2=1.5Ω. Neglect all losses. The motor is connected to an infinite bus, and it delivers its rated horsepower at unity power factor.
A diver runs horizontally off the end of a diving board with an initial speed of 1.70 m/s, what is the diver's speed just before she enters the water
What is its energy in joules? Enter your answer in the form 1.02E12 for 1.02 x 1012 with three significant figures
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