The ph of a 010 m nicotinic acid solution is 293 what is
The pH of a 0.10 M nicotinic acid solution is 2.93. What is the approximate value of Ka for nicotinic acid, HC6H4NO2? Assume small percent dissociation. pH = ?log10[H+].
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If a sample for BOD needs to be diluted by a factor of 0.02 , calculate the volume of sample that will be used in the BOD bottle
Explain the effect of the following experimental errors on your results: a) You add hexane to the reaction flask instead of 1-hexene b) You use 3% hydrogen peroxide instead of 30% c) You forget to add potassium carbonate in the seperation step.
Given the initial effective stress state at a point within a soil mass (s_y=2.5 daN/cm2, s_x=1.5 daN/cm2, t_xy=t_xy=0.4 daN/cm2) and effective soil shear strength parameters at the same point
The next three questions relate to voice communications. Note that this topic was not covered in the class, but it is included to encourage self-learning. research, and analysis.
Iron can exist in the FCC or BCC structure. For FCC iron, the crystal lattice parameter is a=0.3515nm and the atomic packing factor is 0.74. In an FCC structure, iron atoms have an atomic radius of 0.1263nm.
Benny the Barber owns a one-chair shop.
It takes 151 kj/mol to break an iodine-iodine single bond. Calculate the maximum wavelength of light for which an iodine-iodine single bond could be broken by absorbing a single photon.
A structural element subjected to cyclic loading is made of fc' = 3000 psi concrete. Compressive stresses are changing between 2200 psi and 1600 psi. The frequency of loading is 8 Hz.
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In the article "Why It's Important to Think about Social Media Use as a Form of Dissociation, Rather than Addiction" written by Amanda Baughan
What is long-term potentiation (LTP)? Provide one line of evidence to demonstrate its role in memory formation.
In your view, how can we best support mothers? If you were to do a program to help prevent depression or to help depressed mothers, what might you include?
Should I find myself involuntarily immersed in an alien culture, it could potentially trigger a range of detrimental emotional and psychological effects.
How does a researcher go about identifying a problem space? What are the critical arguments one should make to justify
a. Identify who is part of your Service community. b. Which service community members have participated in the self-assessment?
A new psychological pattern has emerged and according to Lunderberg, et al (2018), and Young (2017) it is an uncontrollable need to be online.