A buffer is prepared by combining 100 g of nah2po4 with 150
a buffer is prepared by combining 10.0 g of NaH2PO4 with 150 mL of 0.20 M NaOH and diluting to 2.0 L. what is the pH of the buffer? (Ka (H2PO4-)= 6.2 x 10^-8)
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find the speed and direction of a proton passing through the origin and where the magnetic fields are: B1=1.0x10^-13 (j hat) T at (x,y,z)= (1,0,0) in mm, B2= -1x10^-13 (i hat) at (0,1,0) in mm
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what is the pH of an aqueous solution composed of 0.64 M NH4+ and 0.20 M NH3? (Ka of NH4+= 5.6 x 10^-10)
The Sun revolves around the center of the Milky Way Galaxy at a distance of about 30,000 light-years from the center, how many stars would there be in our Galaxy
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Using demand and supply analysis to assistyou, what are the effects on the exchange rate between the British pound and the Japanese yen from: a decrease in Japaneseinterest rates.
Using the Ka values, calculate the pH of a buffer that contains the given concentrations of a weak acid and its conjugate bases. [1]. 0.86 M NaH2PO4 and 0.63 M Na2HPO4 [2] 0.60 M NaHCO3 and 0.72 M Na2CO3
Two objects attract each other gravitationally with a force of 2.5 * 10^-10N when they are .25m apart. There total mass is 5.00kg. Find their individual masses
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