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Combustion reactionA fuel has the following weight percentage composition:
C = 52%, H = 11%, S = 0%, O = 9%, moisture = 13%, Ash = 15%
100 kg of this fuel is burned and you need to calculate the mass of oxygen required for this combustion reaction to occur.
(The 'fuel' is an un-named carbon-hydrogen mix which combines with oxygen to form carbon dioxide and water. From the percentages given, you know you have 52 kg C and 11 kg H.)
At 25 degree celcius, the density of a 50 percent by mass ethanol/water solution is 0.914 g per subic centimetre. Given that the partial molar volume of water in the solution is 17.4 cubic centimeter per mol.
Determine the concentration of the total available acid of the apple juice express your answer in moles/L?
A 60.00 mL sample of 0.075 M benzoic acid was titrated using 0.050 M KOH. What will be the pH at the equivalence point in the titration.
A 60.0 g sample of an alloy was heated to 96.0 °C and then dropped into a beaker containing 87.0 g of water at 24.1 °C. The temperature of the water rose to a final 27.63 °C.
A 4.70 g nugget of pure gold absorbed 260 J of heat. The initial temperature was 28.0°C. What was the final temperature.
Periodicity in the ionization energy and balancing the equation - Complete the following chemical reactions by writing the product(s) and balancing the equations:
Calculate the final temperature of 204 mL of water initially at 35 degrees C upon absorption of 18kJ of heat.
what volume of 3M sulphuric acid is required to neutralize all of the C 7 H 5 NaO 3 and the excess sodium hydroxide present after the initial reaction? Determine how much H 2 SO 4 was in excess?
Following a terrorist release of Cesium-137 (half-life of 30 years) in downtown, clean up efforts were successful in removing all but 100 curies. How long will it take for the contamination to decay to about 5 curies?
In a manometer the mercury level at the open end of the tube is 215 mm higher than at the closed end of the tube. If the atmospheric pressure is 1 atm.
Determine the molar mass of aspartame and How many moles of molecules are in 10.0g of aspartame?
One method of estimating the temperature of the center of the sun is based on the assumption that the center consists of gases that have an average molar mass of 2.00 g/mol.
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