Determining the initial concentration
A zero-order reaction has a constant rate of 3.70×10-4 . If after 45.0 seconds the concentration has dropped to 2.50×10-2 , what was the initial concentration?
Expected delivery within 24 Hours
A student mixes 5.00 mL 2.00 x 10-3 M Fe(NO3)3, 2.50 mL 2.00 x 10-3 M KSCN, and 2.50 mL H2O to give a solution having a total volume of 10.00 mL. She finds that in the equilibrium mixture the concentration of FeSCN2+ is 7.50 x 10-5 M. What is the
Calculate the pH of a buffer made with 0.50M phosphoric acid and 0.75M sodium dihydrogenphosphate. Ka = 7.5 x 10-3.
Water with a static pressure of 1.96kN/M2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M2. How do you determine the volume flow rate (Q) of the water? (Q = 1.40 M^3/sec, V=2.79 M/sec)
The reaction if the concentration of H2 in the equilibrium mixture is 0.426M what mass of methanol was initially introduced into the vessel?
When the mixture has come to equilibrium, the concentration of iodine monobromide is 1.190 M. What is the equilibrium constant for this reaction at 350°C?
Would you expect the energy of metal to ligand charge-transfer bands to increase or decrease with increasing charge on the complex? Why?
What difference does the tightening of bolt in the friction grip joint make to the load at first slip and the failure load. Why is the correct tightening of friction grip bolts important?
The solubility of silver sulfate in water is 0.223% (w/v) at 35°C. Calculate the solubility product of this salt at this temperature
1958395
Questions Asked
3,689
Active Tutors
1421907
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
When bulimia nervosa and a substance use disorder are comorbid: O the symptoms usually surface at about the same time.
Problem: During an adolescent health assessment, what is the purpose of the HEEADSSS assessment tool?
Write a brief explanation (two hundred-three hundred words) of your BPMN model, describing the steps and decisions included (See BPMN scenario)
By the late 1990s, as it relates to tobacco, the Surgeon General came to several conclusions. Which choice below is NOT one of those conclusions?
Create a response for this post: Proper resource allocation is crucial to ensure we are providing high quality care at the lowest cost possible.
During the COVID-19 pandemic, researchers began using contact tracing to track people who have been in contact with an infectious disease
Create at least one graph that gives a sense of the potential relationship between the two variables