nh3 is acid or base. Explain Is H2SO4 an acid or a base? How do you know? How do you determine the formula for the conjugate base of an acid? Identify the acid and the base in the following reaction: HF(aq) + OH-(aq) F-(aq) + H2O(l). ...
What is the difference between the strength and the concentration of any acid or base? How do I know if an acid is weak or strong? How do you determine the strength of an acid? Which is the stronger acid: NH4+ or NH3? Explain. ...
Ammonia (NH3) is a gas that readily dissolves in water and behaves as a base. The ammonia equilibrium is describe with the equation NH3 + H2O = NH4(+) + OH(-). Formally, the acidity of the solution is expressed as pH. This is the logarithm of the concentration of hydrogen ions (pro...
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what is the net charge of this peptide at (a) pH 2.3, (b) pH 6.0, (c) pH 8.5 and (d) 11.5 ? Assume that the ionisable groups have the following pKa values: Glu 4.2, His 6.0, N-term-NH3+, C-term -COOH 2.3. The disulfide bond is stable between pH 2.3 and 12.5. ...
2002年1月5日，印尼某公司与非洲某国某公司签订一份FOB出口合同，合同约定交货期是6月10日。合同签订后，印尼公司积极准备货源，到6月10日，货源全部备妥。但非洲公司指派的船舶6月30日才到达装运港，装船时发现，一部分货物已经丢失，关于丢失部分货物的损失的承担___。
Errata: a formal basis for architectural connection Wenger uses the example of insurance claims processors to illustrate how communities of practice work. The actual practice of claims processors is as much ... Robert,Allen,David,... - 《Acm Transactions on Software Engineering & Methodology》 被...
The changes observed for two other kinds of interactions, NH2···HB and NH3+···base (for anilinium cations), are much smaller. For all four kinds of interactions, the relationships between ipso-bond angle, mean ipso-ortho bond length, and CN bond length follow the BentWalsh rule. ...
1.12 g of KHP required 34.38 mL of an approximately 0.3 m NaOH solution in an acid/base titration to reach the equivalence point. What is the exact molarity of the NaOH solution? The equivalence point is the point in a titration at which the added...
Is a solution of 0.05 M NH3 and 0.02 M HCl a buffer? Explain why or why not. How do enzymes work? Explain briefly. Explain why alkaline water is good for our health. What is the best buffer? What are the rules of reasoning?