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An object has a mass of 24 grams and students find it hard to calculate the density of it because of its shape. They decide to use the volume displacement method to determine the density of the object. They use a 50 ml graduated cylinder and fill it with 25 ml of water. When they lower the object carefully into the water, the level of the water rises to 31 ml. What is the density of the object?
A 170.0 g sample of metal at 79.00*C is added to 170.0 g of H2O(l) at 14.00*C in an insulated container. The temperature rises to 16.19*C. Neglecting the heat capacity of the container, what is the specific heat of the metal
If you are given that a circular hydraulic jump forms near station 1, estimate the depth of water after the hydraulic jump using the one-dimensional hydraulic jump relationship. Under what conditions will the accuracy of this estimate improve?
a) Write the chlorine shorthand configuration and valence electrons. b) Why chloride anion size larger than neutral chlorine atom?
Give detailed mechanisms for the following reaction, including curly arrows to show electron shifts.
Describe what happen to the density of liquid water when its temperature is increased and/or decreased. properly cite your reference source(s) for this information
Determine theoretical yield, limiting agent and excess reagent - How much excess reagent remains after the reaction goes to completion
For the reaction C2H6 (g)+ H2 (g) -> 2CH4 The standard change in Gibbs free energy is dekta G° = -69.0 kJ/mol. What is delta G for this reaction at 298 K when the partial pressures are
How does the second law explain why heat travels from a substance at higher temperature to one at lower temperature?
Assume at 25C the vapor pressure of pure benzene is 100.84torr. Define what is the vapor pressure of the solution made from dissolving 19.7 g of biphenyl in 28.5 g of benzene
What precautions must one take in using internal standard method for analysis of samples in complex matrices
It takes 11.2 kJ of energy to raise the temperature of 145 g of benzene from 25.0°C to 70.0°C. What is the specificheat of benzene?
Cattell was interested in discovering the fundamental structure of personality. He utilized a statistical procedure named factor analysis.
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