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A volume of 120. mL of H2O is initially at room temperature (22.00 °C). A chilled steel rod at 2.00 °C is placed in the water. If the final temperature of the system is 21.30 °C, what is the mass of the steel bar? Use the following values: specific heat of water = 4.18 J/(g⋅°C)specific heat of steel = 0.452 J/(g⋅°C)?
The specific heat of water is 4.18 J/(g⋅oC). Calculate the molar heat capacity of water?
Express your answer to three significant figures and include the appropriate units.
Explain what simple test can be performed to show that 3-chlorobenzoic acid is not eluted from the chromatography column? TLC possibly
a metal m can readily form the m cation. a nonmetal x is a gas at room temperature and can easily form the x- anion.
Calculate the kilojoules of heat released per gram of the compound reacted with oxygen.The standard enthalpy of formation B5H9 is 73.2kJ/mol
An aqueous solution of iron (III) chloride reacts with magnesium solid to give solid iron an aqueous magnesium chloride. Write the balanced equation for this reaction.
Why is acetanilide more reactive than methyl benzoate in a competetive nitration
How much work does gravity do on a 0.150-kg ball falling from a height of 10.0 m? (Neglect air resistance.) A student throws the same ball straight upwards to a height of 7.50 m. How much work did the student do?
Neglect the absorption of other waste gas components into the water, and the evaporation of water into the waste gas stream. What rate is NH3 is being removed from the feed gas?
Ethyl p-aminobenzoate was produced by the H2SO4 acid-catalyzed, reversible reaction of paminobenzoic acid and ethyl alcohol, as depicted below. Briefly explain why one reactant (the one that's cheaper and more easily separated during work-up) was ..
The ionization constants for sulfurous acid are Ka1 = 1.4*10^-2 and Ka2 = 6.3 * 10^-8. Species that need to be calculated (Molarity):
Assuming that the drug components whose spots you identified dissolved completely when you stirred the tablet with 1:1 ethanol/dichloromethane, what was the solid that remained behind?
When analyzed by ICP-MS, the solution concentration is found to be 35 µg L-1. What is the concentration of arsenic in the rice (in µg kg-1)?
What impact would adding twice as much Na2CO3 than required for stoichiometric quantities have on the quantity of product produced?
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