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How much commercial fresh concentrated H2SO4 solution (in mL) would you have to add to 100mL of distilled water to make a 1.5N solution?
imagine that you run a nursing home facility in your area. analyze and comment on the role public policy has in the
A 50.0 mL sample of vinegar (density = 1.06 g/mL) was diluted to 500.0 mL. Titration of a 50.0 mL aliquot of this solution required 42.5 mL of 0.0900 M NaOH to reach the end point. Determin the acid content of the vinegar as wt. % acetic acid.
an aqueous solution that contains 285ppm of potassium nitrate kno3 is being used to feed plants in a garden. what
Liquid ammonia ionizes to a slight extent. 2NH3(l) > NH4^(+) + NH2^(-). At -50 degrees Celsius, its ion product is K(NH3) = [NH4^(+)][NH2^(-)] = 10^(-30). How many moles of amide ions, NH2^(-), are present per mm^3 of pure liquid ammonia
Calculate the mass of Sodium Nitrate required to prepare 50cm3 of 0.2 moll-1 solution
A student following the procedure described in this module collected the foll wing data: Mass Mg, m= 0.0243, initial syringe volume, ml=1.0, final syringe volume,ml= 26.5, barometric pressure, torr= 754, temperature,k= 298. Calculate the gas law c..
How do you draw S-2 and connect with bonds? Include all lone pairs of electrons and nonbonding electrons and show the charge of the atom.
Which of the following substances would consist of molecules with twice the average velocity of SO2 molecules at the same temperature?
A sample of helium gas initially at 37.0 °C, 785 torr and 2.00 L was heated to 58.0 °C while the volume expanded to 3.24 L. What is the final pressure in atm
For the reaction PCl5-> PCl3+Cl2 kp= 26.03 at 800K. calculate the equilibrium partial pressure for the reactant and product if the initial pressures are PPCl5= .54 atm and PPCl3= .37 atm.
Determine the quantity of stock 75% EtOH required to prepare 300ml of a 25% EtOH solution.
What are some factors to help you determine the relative strength of a base. For example, how would you know that NH2- is a very strong base. Or that OH- is a weaker base than NH2- And that CN- is a relatively weak base
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