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Question 1: What are secondary bonds? What is the driving force for formation of such bonds? Give examples of materials in which such bonds exist.
Question 2: Methane (CH4) has a much lower boiling temperature than does water (H2O). Explain why this is true in terms of the bonding between molecules in each of these two substances.
A weather balloon at Earth's surface has a volume of 3.9 L at 275 K and 775 mm Hg. if the balloon is released volume reaches 4.2 L at 711 mm Hg what is the temperature.
calculate the work done in joules when 50.4 g tin is dissolved in excess acid at 1.04 atm and 20 degrees celsius.
A phosphate buffer solution contains 0.08 M K2HPO4 and 0.12 M KH2PO4. pKa values for H3PO4 are 2, 6.8, and 12.2. Compute the concentrations of
Saturated liquid carbon dioxide at a temperature of 293 K and a pressure of 5.72 x 106 Pa experiences throttling to a pressure of 1.01 x 105 Pa. The temperature of the resulting mixture of solid and vapor is 195 K. What fraction is vaporized?
An aqueous solution of CaCl2 has a vapor pressure of 84.0mmHg at 50 C . The vapor pressure of pure water at this temperature is 92.6mmHg . What is the concentration of CaCl2 in mass percent?
How much heat is required to warm 227 g of ice from -45.5°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C.
Problem- A 5.50 L of sample of gas is cooled from 91 degrees Celsius to a temperature at which its volume is 4.10 L. What is this new temperature. Assume no change in pressure of the gas.
My assignment is to writing a well developed paragraph discussing the reliability, credibility, and/or relevance of the methods.
What is ideal gas law? Who first stated the Ideal gas law? Give Ideal gas equation. Which theory can be used to derive Ideal gas law? Give the molar form of Ideal gas law.
When equilibrium is established, it is found that the partial pressure of ammonia has increase by 12.4%. Calculate K for the decomposition of NH4HS at 25 degrees C.
The excess EDTA from this reaction required 19.77 mL of 0.01883 M Pb2+ standard solution to reach an end point. Calculate [Cu2+] in the unknown
A sample of a gaseous compound of nitrogen and oxygen weighs 5.25 g and occupies a volume of 1.00 L at a pressure of 1.26 atm and temperature of -4.0 °C. Which of the following molecular formulas could be that of the compound
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