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The specific heat of solid gold is 0.13 J/g C. How much heat is needed to raise the temperature of 25.0 g of gold from 23degrees C to it's melting point at 1063 degrees C?
a. 3.5 kJ
b. 3.4 kJ
c. 0.14 kJ
d. 2.0 * 10^3 kJ
e. 3.3 kJ
a solid with an irregular shape and a mass of 11.33 g is added to a graduated cylinder filled with water
Assume that you have a cylinder with a movable piston. What would happen to the gas pressure inside the cylinder if you do the following? (a) Decrease the volume to one third the original volume while holding the temperature constant.
Determine the identity of the diatomic gas when a boy places 59.5 gm of a diatomic gas into a ten litres container at 25 degree Celsius (measures the pressure to be 2.053 atm. )
Which species from the above reactions would be most active (oxidize most easily). Write two complete reactions from the above list that happen spontaneously.
Carbon monoxide gas burns in oxygen to form carbon dioxide gas. Write a balanced equation for the reaction and determine the volume of oxygen needed to react completely with 174 mL of CO at 40.0°C
Calculate the freezing point of each of the solution 75.0 g of glucose,C6H1206 , added to 0.539 kg of water. Calculate the boiling point of the solution. 75.0 g of glucose,C6H1206 , added to 0.539 kg of water.
What is the molecular equation, total ionic equation, and net ionic equation for Cu(NO3)2 and NaOH
find the ph of the solution at the following points in the titration: a) before any base is added b) when half the acetic acid has been neutralized c) at the equivalence pt.
How many mL of 2.56M solution of KCl are required to prepare 500.0 mL of 1.33 L of a 0.175M KCl solution
What m/z value would you predict for the most stable fragment peak in the mass spectrum of 4-ethylheptane ? a- 85 b-128 c-99 d-113 e- 127
Construct quantum mechanical operators for the following observable: (1) the inverse separation 1/x
The following sequence of reactions is a good way to convert 1-alkylcyclohexene to a 3-alkylcyclohexene. Draw structural formulas showing stereochemistry for each step of the reaction sequence and show why it gives the desired product.
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