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On the western prairie where trees were sparse, cowboys fueled their campfires with dried cattle dung (referred to as "cow chips"). What kind of energy would cow chips provide? What would the source of this energy have been? Name one advantage and one disadvantage of using this type of fuel to produce electricity.
Compute the ΔH for this reaction and express your answer in kilojoules if the given . Bond Energies (kJ/mol) are N-Cl 201 , Cl-Cl 243 , N-H 389 ,H-Cl 431
Phenolphthalein has apKa of 9.7 and is colorless in its acid form and pink in its basic form.
Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9041 amu. What is the atomic mass of this element?
What volume will 500 mL of gas at 20°C and a pressure of 420 mm Hg occupy if the temperature is reduced to -80°C and the pressure is increased to 650 mm Hg?
You are using a 0.700M aqueous ammonia solution for your titration, and reach the equivalence point after using 10.0mL. Please i) write down the complete and balanced neutralization reaction, and ii) calculate the concentration of the hydrochloric..
The molar solubility of a compound AX2 is 2.5 x 10-3 M. Calculate the value of Ksp for AX2. 1.5 x 10-3 6.3 x 10-8 1.4 x 10-8 3.4 x 10-9 none of these
Which of the following affect(s) the solubility of gases in solvents. You may select one, two or three responses.
Magnesium is used in lightweight alloys for airplane bodies and other structures. The metal is obtained from seawater in a process that includes precipitation, neutralization, evaporation
calculate the molar enthalpy change when mercury is cooled 10 k. the molar heat capacity of mercury is 27.8
Describe solids, liquids, and gases in terms of how they fill a container, Use your descriptions to identify the physical state ( at room temperature) of the following: 1.helium in a toy balloon. 2. mercury in a thermometer. 3. soup in a bowl
Based on the expressions above, provide a qualitative assessment of the reactions. From this assessment, provide the ideal conditions for the formation of G. Evaluate quantitatively to determine which reactor, plug flow or perfectly mixed, that wo..
calculate the temperature (in EC) at which the vapor pressure is 760 torr. The vapor pressure of Ethanol is 115 torr at 34.9EC
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