Explain why ph is neutral at given temperature
The Kw for the dissociation of H2O varies with temperature. At 90°C, Kw = 1.0 x 10-13. explain why pH = 6.5 is neutral at this temperature and why pH = 7 is basic.
Expected delivery within 24 Hours
Is it possible to separate Ca2+ from Mg2+ by selective precipitation of Mg(OH)2? To be precise, is it possible to precipitate 99.99% of magnesium without precipitating any calcium as hydroxides?
Give examples of specific situations that would call for the following types of research, explaining why - a) Exploratory research b) Descriptive research c) Diagnostic research d) Evaluation research. In the context of hypothesis testing, brief
The National Restaurant Association holds an annual food service convention in Chicago every year. This is a coveted event for many vendors to restaurants and hotels
Calculate ΔH°rxn for this reaction. ΔH°f [NaNO3(s)] = -467.8 kJ/mol; ΔH°f [NaHSO4(s)] = -1125.5 kJ/mol; ΔH°f [H2SO4(l) = -814.0 kJ/mol; ΔH°f [HNO3(g)] = -135.1 kJ/mol.
Two nonconservative forces are present: friction does -2.00 104 J of work on the car, and a chain mechanism does +3.00 104 J of work to help the car up a long climb. What is the change in the car's kinetic energy, ΔKE = KEf - KE0, from A to
Suppose an application generates chunks 40 bytes of data every 20 msec, and each chunk gets encapsulated in a TCP segment and then an IP datagram. What percentage of each datagram will be overhead and what percentage will be application data?
What are five key principles of effective differentiation and which of the five will be the most difficult for you to embrace with a "fluid" or "growth mindset .
Assume that patient blood lead levels are 0.590. What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream?
1929670
Questions Asked
3,689
Active Tutors
1454472
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
A 2016 survey of undergraduate students considered this further and found that compared with students that did not use cannabis at least once
Problem: An infant with known congenital heart disease presents with weight loss, tachypnea, and hepatomegaly.
For a research topic on evaluating the access to health services for commercial sex workers as a mixed method approach provide the methodology
The healthcare provider ordered a urine culture for a client. Which item would a nurse need for a urine specimen collection from an existing indwelling
The nurse practitioner (NP) evaluates a client with complaints of a burning sensation in the chest that often occurs after meals and is exacerbated
I am writing a dissertation topic on the utility of community based interventions in post exposure support to survivors of IPV in uMzingwane district
A 12-month-old child presents with fever of 100.9, lethargy, vomiting and tachypnea. The history is significant for recent hand-foot-mouth disease infection.