You are asked to prepare 19 l of a hcnnacn buffer that has
You are asked to prepare 1.9 L of a HCN/NaCN buffer that has a pH of 9.56 and an osmotic pressure of 1.00 atm at 298 K. What masses of HCN and NaCN should you use to prepare the buffer? (Assume complete dissociation of NaCN).
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the current density in a 28 mum thick x 75mum wide gold long film is 750000 am2the current flows along the length of
suppose that 2265 ml of a 002024m permanganate solution was needed to react with the fe 2 in a sample that had a mass
an air-track cart is attached to a spring and completes oneoscillation every 567 s at t 0 s the cart isreleased at a
a projectile of mass m is launched from the origin at speedv0 and angle theta it is attached to the origin with aspring
you are asked to prepare 19 l of a hcnnacn buffer that has a ph of 956 and an osmotic pressure of 100 atm at 298 k what
the position of a particle is given by the expression x 400 m cos600pit 14pi where x is in metersand t is in secondsa
suppose you are hilding a circular ring of wire and suddenly thrust a magnet south pole first away fro you toward the
a piece of charcoal used for cooking is found at the remains of anancient campsite a 110 kgsample of carbon from the
on a cool morning when the temperature is 14 circrm c you measure the pressure inyour car tires to be 30 psi after
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