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The following information is given for silver at 1atm: boiling point = 2212oC Hvap(2212oC) = 254 kJ/mol melting point = 961oC Hfus(961oC) = 12.0 kJ/mol specific heat solid= 0.238 J/goC specific heat liquid = 0.285 J/goC What is H in kJ for the process of freezing a 28.9 g sample of liquid silver at its normal melting point of 961 oC.
Calculating concentration in equilibrium, At pH 6.00 and pE 2.60, what is the concentration of Fe2+ (mol/L) in equilibrium with Fe(OH)3?
What is the molarity of a NaOH solution if 28.2 mL of a 0.112 M H2SO4 solution is required to neutralize a 25.0-mL sample of the NaOH solution?
Determine the partial pressure and total pressure of each gas in the vessel and process of reaction runs until eighty five of the Oxygen is used and the vessel get cooled to its starting or initial temperature.
aluminum block and that the alcohol vaporizes at 25 degree Celsius). Heat of vaporization of the alcohol = 45.4 kj/mol at 25 0C
A 24.9 mL volume of HCl reacts completely with 55.0 mL of aqueous Na2CO3. The reaction is as follows: 2HCl (aq)+ Na2CO3(aq) ->CO2(g)+H2O(l)+2NaCl(aq) The volume of CO2 formed is 141 mL at 27°C and 742 mmHg.
One way to isolate metals from their ores is to react the metal oxide with carbon as shown in the following reaction: 2MO(s) + C(s) → 2M(s) + CO2(g)
Ethylene glycol is used as automobile antifreeze. 6.38g og this compound contains 2.47g of carbon and 0.620g of hydrogen. The rest is oxygen. The molar mass is 62.0g/mole.
For the reaction 2 HCl + Na2CO3 → 2 NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP
What was the volume occupied by the sample under the new conditions - Determine what volume of 3.00M HCl in liters is required to react
The equilibrium constant at 25°C is 8.9 × 10-12. One hundred grams of magnesium hydroxide is added to 1.00 L of water and equilibrium is established.
What is the final concentration of Na+ if 250 ml of 0.3 M Na Cl is added to 750 ml of 0.125 M Na2SO4?
Nitrogen (N2) reacts with hydrogen to give ammonia (NH3): N2 + 3H2 -> 2NH3 If 30 g of N2 reacts with excess hydrogen, what the mass of ammonia formed would be?
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