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0.80 g of sulfur is combusted to form SO2. All ofteh heat evolved is used to raise the temperature of 100.0 g ofwater by 17.8 K. Specific heat of water is 4.813 J/g K. Calculate the heat of combustion of 1 mol of sulfur.
a) Write the combustion reaction for sulfur
b) Calculate the heat absorbed by water (indicate is it exo or endothermic?)
c) How do heat of combustion of sulfur and heat absorbed by waterrelate to one another?
d) Calculate the heat combustion of 1 mole of sulfur (indicate isit exo or endothermic?)
In an earlier problem we described the reaction of ammonia with oxygen to form nitrogen monoxide, NO.4NH3 + 5O2 ? 4NO + 6H2O
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The flask was then shaken until the solution was uniform. A 30.0-\rm mL sample of this glucose solution was diluted to 0.500 \rm L. How many grams of glucose are in 100. \rm mL of the final solution
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The current dietary recommendation is to consume less than 0.1 mol of sodium per day. one teaspoon of table salt.
A researcher studying the nutritional value of a new candy places a 4.20-gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.71 °C
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What is the pH of a saturated solution of Ba(OH)2 at 25oC? For Ba(OH)2, Ksp=5.0x10-3
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