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As a technician in a large pharmaceutical research firm, you need to produce 200. of 1.00 potassium phosphate solution of = 7.26. The of is 7.21. You have 2.00 of 1.00 solution and 1.50 of 1.00 solution, as well as a carboy of pure distilled . How much 1.00 will you need to make this solution?
Pure liquid water can be supercooled to temperatures below its freezing point. Consider 10 kg of water cooled as a liquid to -10 Celsius. Let's now add a small crystal of ice (whose mass is negligible) as a "seed"
The labels of bottles that contain barium hydroxide, hydrochloric acid and sodium carbonate had fallen off. When the contents of the bottle A were mixed with B's Contents, a white precipitate formed, A with C yielded a gas and B with C gave heat.
The reaction 2NO (g)-> N2 (g) + O2 (g) has a H = 180.5 kJ. How much heat will be required to produce 44.8 L of NO by the reverse reaction?
What mass of HCl is consumed by the reaction of 3.84 mol of magnesium? Answer in units of g.
imagine that you have a 5.00 l gas tank and a 2.50 l gas tank. you need to fill one tank with oxygen and the other with
A hypothetical metal has a body-centered cubic unit cell and a density of 3.229 g/cm3. The molar mass of the metal is 114.8 g/mol. What is the atomic radius of this metal
how many metric tons of oxygetn are combined in a sample of pitchblende that contains 2.3 t of
The osmotic pressure,pie , of a solution of glucose is 83.1atm . Find the molarity of the solution at 298k .
What was the concentration (mol/L) of the permanganate solution. Submit answers correct to two decimal places.
Water (2290 ) is heated until it just begins to boil. If the water absorbs 5.43×105 of heat in the process, what was the initial temperature of the water?
So could you please explain how you can estimate the order of increasing melting points for the following compounds. Why is the estimate rather inaccurate
A hydrated iron chloride compound was found to contain 20.66% Fe, 39.35% Cl, and 39.99% water. Determine the empirical formula of this hydrated compound.
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