A solution was prepared by dissolving 0.02 moles of acetic acid (HOAc; pKa = 4.8) in water to give 1 liter of solution. What is the pH? To this solution was then added 0.008 moles of concentrated sodium hydroxide (NaOH). What is the new pH? (In this problem, you may ignore changes in volume due to the addition of NaOH).

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#Question id: 15779

#5. Developmental Biology

During stem cell regulation extracellular mechanisms leading to intracellular changes that regulate stem cell behaviour. Which of the following is not consider as extracellular mechanisms for stem cell regulation?

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#Question id: 2642

#2. Cellular Organization

We know that lactose has a positive impact on the activity of the lac operon. Tryptophan’s presence has a ________________

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#Question id: 4819

#8. Inheritance Biology

Plant with genotype AB/ab is test cross, two genes are linked are 10 map units apart. What proportion of progeny will have the genotype aabb?

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#Question id: 9180

#9. Diversity of Life Forms

Which of the following statements can be accurately made about light in aquatic environments?

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#Question id: 24166

#Aptitude

The term spices is a pleasant one, whether it connotes fine French cuisine or a down-home, cinnamon-flavored apple pie. ____________. In the past, individuals traveled the world seeking exotic spices for profit and, in searching, have changed the course of history. Indeed, to gain control of lands harboring new spices, nations have actually gone to war.