What is the new ph
A compound is a weak acid with a pKa of 7.4. You make 100 mL of a 1.0 M solution of this compound. The pH of the resulting solution is 8.0. Then you add 40 mL of 1.0 M hydrochloric acid (HCl) to the solution. What is the new pH?
Expected delivery within 24 Hours
A dead alkaline battery is found to contain a compund of Mn and O. Its analysis gives 69.6% Mn and 30.4% O.
Caffeine is a stimulant found in coffee and tea . A solution of caffeine in chloroform as a solvent has a concentration of 7.90×10-2 . Calculate the percent caffeine by mass.
The absorbance of the new solution was 0.500. What is the concentration of Cu2+ in the sample? State any assumptions you might make and pay attention to significant figures.
What is the molarity of a solution made by dissolving 0.0815 grams of Na2SO4 in enough water to form exactly 750. mL of solution?
The pH of the resulting solution is 8.0. Then you add 40 mL of 1.0 M hydrochloric acid (HCl) to the solution. What is the new pH?
How is the solubility of manganese(II) sulfide affected by the addition of aqueous potassium hydroxide to the system?
Describe the process that will result in the greatest amount of work done by the system with a constant external pressure and calculate w. What is the least amount of work done with no restrictions on the external pressure?
A 5.00 g sample of aluminum pellets (specific heat capacity = 0.89 J/C g) and a 10.00 g sample of iron pellets (specific heat capacity= .45J/C g) are heated to 100.0 C.
$15 for original work in APA format please 3-4 references NO INTERNET COPY WORK You have been hired as an executive director of a small nonprofit organization. Among your many duties are to determine an annual budget and develop a fiscal plan for
1953345
Questions Asked
3,689
Active Tutors
1451355
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: What are the most common disability types for suspended students?
According to the text, what is a trait of adolescence whereby ongoing social, cognitive, and psychological development continues?
68-year-old widowed white male who has been increasingly more withdrawn and lonely. His wife died five months ago, very suddenly after a cardiac arrest
Jordan lives in a culture where God is viewed as benevolent. Based on correlational research, one could reasonably predict that Jordon lives
Compose an expressive blog. Parents often struggle to understand the difference between reinforcement and punishment, especially the technical terms,
In evaluating Pete Jones for possible diagnoses, one prominent diagnosis in the differential is Adjustment Disorder.
Schizophrenia spectrum and other psychotic disorders are defined by delusions, hallucinations, disorganized thinking (speech), grossly disorganized