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Problem- 1) Calculate the heat required to sublime of 940 g of solid CO2 at the normal sublimation temperature. Delta H = 24.2 kJ/mole
2) A 1.00 kg object is lifted from the ground to a height of 15 meters. It is then dropped from that height and falls back to the ground. What is the velocity of the object immediately before it reaches the ground?
It is not a question in the book, so I just need the full solution of deriving!
A 74.0-mL sample of 0.13 M HNO2 (Ka = 4.0 × 10-4) is titrated with 0.14 M NaOH. What is the pH after 25.8 mL of NaOH has been added?
A sample of propane occupies 250.0 L at 125 kPa and 38 degrees celsius. Find its volume at 100.0 kPa and 95 degrees celsius.
A solution was prepared by dissolving 5.76g of KCL*MgCl2*6H2O (277.85g/mol) in sufficient water to give 2.000L
Compute the number of moles - As we know many volatile substances are present in Earth's atmosphere in trace amounts.
A 0.48 mg sample of sulfur-35 has an activity of 20.4 Ci. What is the decay constant of sulfur-35 (in /s)
For propanoic acid (HC3H5O2, Ka = 1.3 multiplied by 10-5), determine the concentration of the species present, the pH, and the percent dissociation of a 0.27 M solution.
Consider the the list below for the formation of esters of acetic acid using different alcohols. What does it tell you about the relative ease of preparation of esters from different types of alcohols
Draw the abbreviated structural formula of the products of the complete hydrolysis of lidocain.
Explain the data related to odour in terms of types of bonds. Do you think that a substance can be relatively volatile and not have an odour? Give an example.
Does fluorene or 9-fluorenone move faster down the column when petroleum ether is used as the eluant. Why
Question- a) What is the mathematical equation that relates absorbance and concentration? Define each symbol. b) How are A and %T related mathematically
Problem- The standard reduction potentials in volts for Pb 2+ and Ag+ are -0.13 and +0.80, respectively. Calculate E in volts for a cell in which the overall reaction is
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