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!
A) What combination of a molecular base (compound must be neutral and not contain a cation) and a salt (must be composed of a cation and anion) of the conjugate acid of the molecular base (don't forget to specify a common spectator ion as the anion in the salt) should you select to prepare a buffer solution that would maintain a pH of 9.00? Explain how you came to that answer.
B)What ratio of concentrations of the molecular base you chose in part A and its conjugate acid would be necessary to achieve a pH of exactly 9.00?
C) Describe a simple and practical way to make 1.00 L of this buffer solution, assuming a 1.0 M solution of the molecular base is available and that the chloride salt of the conjugate acid is available as a solid. (Note: Lab balances are calibrated to measure in grams and pipettes in mL, neither of these are calibrated in moles hint hint!)
The difference between these forces is why some solids dissolve by an exothermic reaction (release heat), while other solids absorb heat and cool the solution. For an ionic solid dissolving in water, briefly identify the attractive
Consider the following equilibrium process at 686°C: CO2(g) + H2(g) ? CO(g) + H2O(g) The equilibrium concentrations of the reacting species.
Assume that the volume of Earth's oceans is 137 x 10^7 km^3 and that the density of seawater is 1.03 g/cm^3. Also assume that the heat capacity of seawater is the same as that of water.
Calculate the amount of heat required to completely sublime 23.0g of solid dry ice (CO2) at its sublimation temperature
An open-end manometer containing mercury is connected to a container of gas. The mercury in the arm attached to the gas is 13.6cm higher than the one open to the atmosphere.
A patient needs 2.40×10-2 of a sulfa drug. There are 8.00 tablets in stock. How many tablets should be given?
Calculate the fraction of methyl isonitrile molecuules that haven an energy of 80.30 kJ or greater at at 450 k.
A Flask contains 0.320 mol of liquid bromine,Br_2. Determine the number of bromine molecules present in the flask.
How many moles of Mg3N2 would be produced when 180.0 g of Mg reacts with 85.0 g of N2.
Metal carbonyls having formula M(CO)x , where x is the number of carbonyl units co-ordinate to metal M are formed by Fe, Cr and Ni. If effective atomic number of each metal is 36
A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.740 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane
I'm working on a Lewis Structures sheet. After we have completed the structures, which i have, we need to predict the shape of the molecule in VSEPR. What is the shape of a C2H6 amd a C2H4 molecule in VSEPR?
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