Describe the preparation of a 150 m ph 80 tris buffer 500
Describe the preparation of a 1.50 M, pH 8.0 tris buffer (500 mL) using tris base (MW= 121.1 g/mol) and 3.0 M HCl. pKa of tris is 8.3
Expected delivery within 24 Hours
Determine the number of moles of helium in the balloon and Determine the mass of helium needed to inflate the balloon to these values
A compound is known to contain 51.27% carbon and 27.30% oxygen by mass. Each molecule contains two atoms of oxygen. What is the molar mass of this substance
While sitting in your car by the side of a country road, you see your friend, who happens to have an identical car with an identical horn, approaching you. How fast is your friend approaching you
Explain why a voltage follower implemented with an op-amp is a useful circuit component. Explain how the nature of KCL allows the connection to a single op-amp input of multiple voltage signals, each through a resistor, to perform a summing functi
Design a counter that counts according to the sequence 0,5,1,4,2,3 in the ways listed. Provide a state diagram and show how unused states connect to the counting sequence. a. using T-Flip Flops b. using D-Flip Flops
Burning coal for energy is not efficient and never will be. Burning coal for energy is now around 33% efficient now, but "a successful outcome to ongoing RD&D could see units with efficiencies approaching 50% or even higher demonstrated within
The combustion of 53.4 g of butane (c4h10) produces 95.6 g of co2. what is the percent yield of the reaction
LSI recently issued $195,000 of perpetual 9% debt and used the cash to do a stock repurchase. Earnings for LSI are anticipated to be $83,000 annually before interest and taxes.
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