The Senate approved the legislation earlier Wednesday in a 78-20 vote, and Obama signed it into law that evening. All 20 ânoâ votes in the Senate came from Republicans, though Sens. Marco Rubio (R-Fla.) and Lindsey Graham (R-S.C.), both running for president, missed the vote. Without action by Congress, the federal government would have shut down on Thursday, the beginning of a new fiscal year.
A buffer is made by mixing a large volume of a weak acid or weak base together with its conjugate. A weak acid and its conjugate base can remain in solution without neutralizing each other.
A buffer is an aqueous solution that has a highly stable pH. If you add acid or base to a buffered solution, its pH will not change significantly. Similarly, adding water to a buffer or allowing water to evaporate will not change the pH of a buffer.hen you select an acid for a buffer solution, try to choose an acid that has a pK a close to your desired pH. This will give your buffer nearly equivalent amounts of acid and conjugate base so it will be able to neutralize as much H + and OH-as possible.