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concentration expressed as ; (a) molarity of CH3OH; (b) molality of CH3OH?
X – [Ar]4s2
Y- [Ne]3s2
3p5
.The formula of ionic compound formed is.
If 0.25 moles of sodium hydroxide completely react with hydrochloric acid how many moles of water will be made?
2Al + Fe2O3 Al2O3 + 2Fe H=?
a) calculate the standard enthalpy change for this reaction?
b) if 40.0 g of iron (III) oxide we’re reacted with excess aluminum, how much heat would be produced ?
c) of the heat produced was used to heat 2.00L of water at 23.0C, what would the final temperature of the water be?
2Al + Fe2O3 Al2O3 + 2Fe H=?
a) calculate the standard enthalpy change for this reaction?
b) if 40.0 g of iron (III) oxide we’re reacted with excess aluminum, how much heat would be produced ?
c) of the heat produced was used to heat 2.00L of water at 23.0C, what would the final temperature of the water be?
a) how much heat energy was transferred into the water ?
b) how much energy was transferred per gram of paraffin wax?
c) How much energy was transferred per mile of paraffin wax?
d) If the theoretical enthalpy of combustion of paraffin wax is -42kj/g, what is the percentage difference ?
