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17.4g of Aluminium is dropped into a beaker of dilute hydrochloric acid. Calculate the work done (in J) on the surrounding atmosphere (1atm pressure, 25.8 oC ) by the evolution of hydrogen in the subsequent reaction. State any assumptions you have made?
15.0 g of steam at 373 K is added to 250.0 g of H2O (l) at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate ?S for the process.
Indicate what precipitates, if any, form when solutions of each of the following are added to a solution containing the Group I cations.
A current of 4.67 A is passed through a Sn(NO3)2 solution for 1.80 hours
When some ionic compounds dissolve, not all of their bonds dissociate. What kind of conductivity would you expect such a solution to have?
If the reaction is carried out in a 2.0 L container and 0.010 mol of PH3 is consumed each second, what are the rates of production of P4 and H2?
How do I determine the concentration of 2 separate acids in a solution of water if I know the overall pH of the solution? There exists both formic acid and acetic acid in a 1 liter solution of water. The overall solution pH is stated as 4.0 and it ..
What mass of oxygen will react with 2.64g of magnesium? 2Mg(s)+O2(g)-->MgO(s)
For the unbalanced equation Cl2 ++ KI = I2 + KCl - how many moles of the second reactant would be require to react exactly with the 0.275 mole of the first reactant
Sample were collected in a zinc smelter to determine the exposure of a furnace tender to lead fume during his normal work duties which involves "furnace draws" and general activities around the furnace.
Compute the volume of 3M NaOH(aq)aqueous sodium hydroxide needed to neutralize the phosphoric acids and acetic acid in the synthesis of acetyl-ferrocene.
A flask contains 0.350 grams of liquid Br( bromine). calculate the number of (Br)bromine molecules present in the flask
Which of the following would be expected to have the lowest freezing temperature?
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