Calculate the number of moles
Phosphorus pentachloride, PCl5, a white solid that has a pungent, unpleasant odor, is used as a catalyst for certain organic reactions. Calculate the number of moles in 38.7 g of PCl5.
Expected delivery within 24 Hours
The empirical formula for acetic acid is CH2O. Its molar mass is 60 g/mol. The molecular formula is
A certain first-order reaction () has a rate constant of 7.50×10-3 at 45 . How many minutes does it take for the concentration of the reactant, to drop to 6.25 of the original concentration?
In the reaction between potassium carbonate and calcium nitrate (balanced eq: K2CO3 + Ca(NO3)2--> K2(NO3)2 + CaCO3), why wouldn't ...--->2KNO3 +CaCO3 be right?
Consider the following reaction, equlibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of SO3(g)
The molar heat of solution of a substance is found to be +35.34 kJ/mol. The addition of 0.20 moles of this substance to 1.5 L water initially at 55. °C results in a temperature decrease. Assume the specific heat of the resulting solution to be
A solution is prepared by dissolving 4.21g of a nonelectrolyte in 50.0 g of water. If the boiling point increases by .203C, what is the mass of the solute?
The reaction of peroxydisulfate ion (S2O8)2- with iodide ion (I-)is, S2O82-(aq) + 3I-(aq)= 2SO42-(aq) + I3-(aq) From the following data collected at a certain temperature, determine the rate law and calculate the rate constant.
If 6.06 L of O2 gas is collected over water at 250C (vapor pressure = 23.8 torr) and a barometric pressure of 702 torr, what is the mass of H2O2 (MM = 34.02 g/mole) decomposed?
1949591
Questions Asked
3,689
Active Tutors
1454324
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
The 2009 murders of four women in the Shafia family shocked Canadians and sparked national debate about multiculturalism, religious freedom, and gender equality
Please submit as a Word or PDF document. Article: Why Aren't We Losing Our Minds over the Plastic in Our Brains? By Megha Satyanarayana
Assignment: Essay #1: Summary & Response: Mr. Death Formatting & Citation: Make sure the essay adheres to MLA formatting guidelines.
While they are often confusing, the terms presented in the "Public Relations Terms" presentation provide a taxonomy of public relations practice.
Discuss solution-focused brief therapy. Describe key concepts and specific interventions including the use of the miracle question.
The Gloria tapes showcase the approach of three of the pioneers in the foundation of individual psychotherapy and their very different approaches
In this PowerPoint assignment, you'll take on the role of a psychology professional by investigating a real-world issue in a workplace or educational setting.