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Calculate the melting point of Tungsten (in oC) if 5.5 x 106 J of heat must be removed from a 20.0 kg sample of the Tungsten at the boiling point to just reach the melting point. (sp Heat = 0.13 J/(g*oC))
When the reaction is complete, transfer the contents of the reaction glassware to a beaker to test its electrical conductivity.
5Ca+ V2O5 ----> 5CaO + 2V In one process, 1.54 x 10^3 g of V2O5 react with 2.07 x 10^3 g Ca. Calculate the theoretical yield of V. Calculate the percent yield if 795 g V are obtained
How many moles of NaN3 would have to decompose
What pressure is needed to make the following changes. 130 mL of a dry gas at 740 torr to 150 mL.
If 1.87 {rm g} of acetic acid (rm CH_3CO_2H) reacts with 2.31 {rm g} of isopentyl alcohol (rm C_5H_{12}O) to give 2.96 {rm g} of isopentyl acetate (rm C_7H_{14}O_2), explain what is the percent yield of the reaction
Outline the procedure for calibration of a light microscope, The procedure of focusing in light microscope, Explain four factors ways of obtaining maximum amount of resolution in bright field microscope
The percentage of the major component of clove oil actually increases as the cloves are steam distilled. Explain why and give an equation for the reaction involved.
An isolated chamber with rigid walls is divided into two equal compartments, one containing gas and the other evacuated. The partition between the compartments ruptures.
If management requires a minimum 12 percent rate of return. Should the firm purchase this particular machine? why or why not
What are the common strong and weak acids and bases need to recognize for titration, equilibrium and anything else involving acids and bases
as a system increases in volume it absorbs 52.5 j of energy in the form of heat from the surroundings. the piston is
What is the amount of heat required to raise the temperature of 200.0g of aluminum by 10 degrees celceius
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