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A box contains a mixture of small copper spheres as well as small lead spheres. The total volume of both metals is calculated by the displacement of water to be 427 cm3 and the total mass is 4.36 kg. Explain what % of the spheres is copper?
Determine the pH change when 0.092 mol NaOH is added to 1.00 L of a buffer solution that is 0.457 M in HNO2 and 0.356 M in NO2-.
a silver chloride precipitate weighing 0.2255 grams was obtained from 0.3448 grams of a soluble salt mixture. calculate
How many milliliters of a 330 mL solution of 1.5 M Na3PO4 must be used to make 53 mL of a solution that has a concentration of .5 M PO43-?
Calculate the mass of methane that must be burned to provide enough heat to convert 128.0 g of water at 36.0°C into steam at 103.0°C. (Assume that the H2O produced in the combustion reaction is steam rather than liquid water.)
The shares of American Greetings are currently trading at an EBITDA multiple
a 10-mL graduated cylinder (where volumes can be read to the nearest 0.1 mL). Calculate the required quantity of each reagent and the volume of water that must be added for dilution.
identify the spectator ion s in the following equationhclaq li2co3aq rarr lihco3aq
a what is the ground state energy of the electron in a hydrogen atom expressed in units of electron volts ev?b what is
When carbon dioxide is bubbled through a clear calcium hydroxide solution, the solution appears milky. write an equation for the reaction and explain how this reaction illustrates that CO2 is an acidic oxide. Remember to add the states of all reac..
A 633 milliliter NaCl solution is diluted to a volume of 1.34 L and a concentration of 8.00M. What was the initial concentration C1
If doing by hand, please write dark onpaper before scanning. Balance and do total net ionic equations
Determine the density of valence electron in silver. assume silver is a simple cubic structure. (mass density of Ag=10.5g/cm3, atomic weight of Ag=107.88)
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