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Problem- A calorimeter is to be calibrated: 51.203 g of water at 55.2 degrees C is added to a calorimeter containing 49.783 g of water at 23.5 degrees C. After stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degrees C. Calculate the calorimeter constant.
Using the same calorimeter from the above question, calculate the amount of heat evolved when 50.00 ml of 0.400 M copper (II) sulfate solution at 23.35 degrees Celsius is mixed with 50.00 ml of 0.600 M sodium hydroxide solution a same temperature. After the reaction occurs, the final temperature of the resulting mixture is measured to be 25.23 degrees Celsius. The density of the final solution is 1.02 g/ml. Assume the specific heat of solution is the same as pure water, 4.184 J/g degrees Celsius.
Write the complete solution in short and simple way
Would the following procedural errors causes an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case.
Determine the molecular mass and its uncertainty for CH3CH2COOH. Note: Pay attention to significant figures and use the atomic masses given in the table.
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If A gas consisting of only Carbon and Hydrogen has an empirical formula of CH2. The gas has a density of 1.65g/L at 27 degrees Celsius and 734 torr. Find out the molar mass and molecular formula of the gas
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question a gas is compressed at a constant pressure of 0.320 atm from a volume of 8.00 l to 5.00 l. in the process 400
Describe what data you need to collect and how you will use it to identify the metal cations present in the sparklers.
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