Nh3 is a weak base kb 18 times 10-5 and so the salt nh4cl
NH3 is a weak base (Kb = 1.8 × 10-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.049 M in NH4Cl
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A small mailbag is released from a helicopter that is descending steadily at 1.00 m/s. After 3.00 s, What is the speed of the mailbag
What mass of oxygen gas, measured at STP, is required in order to release 8300 kJ of heat to the surroundings from the combustion reaction shown
How long (in years) would it take the oceans to heat up to 100°C? You can assume that they start out at about 2°C. Take the heat capacity of seawater to be the same as pure water.
The motion of a particle is given by x = A sin^3(?t). What is the amplitude of the particle's motion
Calculate the circumfrential and longitudinal stresses in the plates when the internal pressure is 800KN/m sq. If the ultimate tensile stress of the material used is 600 MN/m sq, and the efficiency of the longitudinal joint is 70 per cent, determi
A diver leaves the end of a 4.0-m-high diving board and strikes the water 1.3 s later, determine magnitude of velocity when she enters the water
Description of data collection and analysis methods (how do you choose people for survey? Sampling plan or any others) Survey on according to the Australian market
stable globular units unit of tertiary structure clusters of secondary structure may be distinct functional units of a protein Both: depends on primary structure depends on hydrophobic interactions may retain a 3d structure when seperated from ent
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