Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
1. You titrate 125 mL of a solution of ammonia (NH3) with 1.0 M HClO4. The equivalence point is reached after adding 25 mL of the titrant.
a.) What kind of titration was this (WA/SB; WB/SA; SA/SB; polyprotic A (or B) /SB (or SA); WA/WB)?
b.) Write a balanced reaction for the titration.
c.) What is the concentration of the NH3?
d.) Would the resulting solution be acidic, basic, or neutral?
4. Write the Keq expression for the following equilibria:
a.) H3PO4 (aq) + H2O (l) ? H3O + (aq) + H2PO4 - (aq)
b.) HCO3 - (aq) + H+ (aq) ? H2O (l) + H2CO3 (aq)
c.) PbSO4 (s) ? Pb+2 (aq) + SO4 -2 (aq)
A 2.914-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO4, is heated at a temperature greater than 170 Celsius in a crucible until a constant mass is reached.
in an effusion experiment it was determined that nitrogen gas n2 effused at a rate 1.812 times faster than an unknown
write separate oxidation and reduction half-reaction for the procedure used in the test for nitrate ions.
a) If one of the electrodes is Al (suspended in a 1 M Al3+ solution), and the volt meter reads 2.00 volts, what is the identity of the other solid metal electrode
Graphite is the crystalline form of carbon used in lead pencils. How many moles of carbon are there in 305 mg of graphite? (b) Manganese (Mn) is a transition element essential for the growth of bones.
34.62mL of 0.1510M NaOH was needed to neutralize 50.0mL of an H2SO4 solution. What is the concentration of the original sulfuric acid solution?
Recognize the atom or ion that has the indicated property or state the electronic configuration of the atom listed whichever applies.
The compound sodium bromide is 22.3 % by mass sodium. The compound sodium oxide is 74.2 % by mass sodium. Calculate the mass (g) of sodium bromide in the mixture.
How much calcium bicarbonate (kg/day) will need to be added per day in water with alkalinity of 30 mg/L CaCO3 to prevent rapid pH decrease (assume for simplicity inly bicarbonate alkalinity is present) if 794 kg of Al2(SO4)3 x 18H2O is added per..
The energy required to ionize boron is 801 kJ/mol. What minimum frequency of light is required to ionize boron?
If an iron atom in this universe contains the same number of electrons as on Earth, and Hund's rule and the Pauli exclusion principle are also true, what is the highest energy orbital for Fe that contains at least one electron
What are the units for absorptivity where the path length is given in centimeters and the concentration is expressed in. a. parts per million
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd