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You have a stock solution of 14.8M Ammonia. Determine how many milliliters of this solution should you dilute to make 100.0mL of 0.250M Ammonia(NH3)?
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1.00 mole of sodium carbonate (formula mass 106.0) is converted to sodium chloride, Na2CO3(s) + 2HCl(aq)® 2NaCl(aq) + H2O +CO2(g). The percentage yield in this conversion is 80%.Which of the following is correct: a. 0.80 ...
An 18g ice cube initially at -10C is dropped into 120 g of water initially at 25C. What is the final temperature of the system after all of the ice has melted? Use the data provided in the reference data sheet and assume ...
At a given pressure and temperature, it takes 198.7 sec for a 2.6 L sample of Kr to effuse through a porous membrane. How long does it take for 2.6 L Ar to effuse under the same conditions?
If 0.050 mol hydrochloric acid (HCl) is mixed with 0.050 mol of sodium hydroxide (NaOH) in a "coffee cup" calorimeter, calculate the temperature change of 34.6 g of the resulting solution if the specific heat of the solu ...
Suppose 1.7 g of zinc is treated with 6.2 g of pure hydrogen chloride. What is the maximum mass (in g) of hydrogen gas that can be produced?
A 20.0 mL sample of 0.200 M HBr solution is titratedwith 0.200 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added. (19.8 mL)
While heating your copper sulfur mixture the original crucible lid fell and was broken. You replace the lid with another one. You used the mass of the original lid in your calculations. However the mass of the second lid ...
Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons. Show the formal charges of all atoms in the correct structure.
How do the colors seen by the naked eye compare to the emission spectra emitted by the flame
What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?
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