Half-stoichiometric point
What is the pH at the half-stoichiometric point (half-way to the endpoint) for the titration of 0.22 M HNO2(aq) with 0.10 M KOH(aq)?
Expected delivery within 24 Hours
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?
What is the crystal lattice energy of LiI? Sublimation energy for Li is 155 kJ/mol and ionization energy for Li is 520 kJ/mol. Sublimation energy for I2 is 62 kJ/mol and dissociation energy for I2 is 151 kJ/mol. The electron affinity for I is -295
Suppose that 1.331 g of impure barium hydroxide is dissolved in enough water to produce 250. mL of solution and that 35.0 mL of this solution is titrated to the stoichiometric point with 17.6 mL of 0.0935 M HCl(aq).
The specific heat of ethanol is 2.44j/g times degrees celcius. How many kilojoules of energy are required to heat 50.0 g of ethanol from -20.0 degrees celcius to 68.0?
A 245 mL stock solution contains 0.9 M Ca(CN)2. When 105 mL of the stock solution is diluted to 125 mL, how many moles of CN- ions will be contained in the dilute solution?
A sample of propane,C3H8, contains 11.7 moles of carbon atoms. How many total moles of atoms does the sample contain?
If the final temperature reached by the alloy sample and water is 27^{circ}{rm C}, what is the specific heat ({rm cal}/{rm g}^circ{rm C}) of the alloy?
In most general chemistry courses, students calculate the molar mass (MM) of a volatile liquid using the ideal gas law (PV = nRT) in the following form: MM = (mass of vapor*R*boiling point in Kelvins)/(pressure in atmospheres*flask volume).
1932019
Questions Asked
3,689
Active Tutors
1451554
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
The hyperarousal cluster is characterized by heightened awareness and emotional reactivity. Survivors may have exaggerated startle responses
Question: For school-aged children, language development? Need Assignment Help? Group of answer choices
Jordan is a high school student who is simultaneously an athlete, an older sibling, and a member of the student council.
Select a topic impacting family systems in which you will become an expert and teach to your classmates.
In this assignment, you will create a strategy chart evaluating literacy strategies as they relate to the five reading components.
Please select a creative idea for your capstone and submit a 3-5 page proposal for preliminary topic approval by your instructor.
Rawls argues that inequalities are only just if they benefit the least advantaged, while Nozick defends individuals' right to keep what they earn.