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A gas pressure of 2.0 atm is in a closed container. Indicate the changes in its volume when the pressure undergoes the following changes at constant temperature: a) the pressure increases to 6.0 atm. b) the pressure drops to 1.0 atm. c) the pressure drops to 0.40 atm.
Write an orbital diagram for the ground state of the Calcium atom. Is this atomic substance diamagnetic or paramagnetic
A gas expands and does P-V work on the surroundings equal to 325J. At the same time, it absorbs 127J of heat from the surroundings. Calculate the change in energy of the gas. How do I solve this?
What would the product be in an aldol condensation and dehydration reaction for 4-methoxybenzaldehyde
Calculate the number of grams of alcohol present in 1.00 L of 60. proof gin. The density of ethanol is 0.798 g/mL.
Assuming the solution has a heat capacity of 4.18 J/°C · g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.
Sunlight causes the following reaction to take place in the atmosphere: NO2(g) NO(g) + O(g). Calculate the standard enthalpy of the reaction from the following information and from additional information in Appendix 2A
The precipitate formed was washed and dried .Its mass was 0.287g.Find the mass of NaCl in the initial sample.
Find the temperature at which ethanol boils on a day in the mountains when the barometric pressure is 547 mmHg. (Given: The heat of vaporization of ethanol is 39.3 kJ/mol; the normal boiling point of ethanol is 78.3°C.)
When 50 grams of iron absorbs 1.0 kJ of heat its temperature increases by forty degrees celsius. What is the molar heat capacity of iron?
Explain why the Rf values changed when the eluant was changed from 100% petroleum ether to a 95:5 mixture of petroleum ether-ethyl acetate.
A 125g metal block at a temperature of 93.2 degrees Celsius was immersed in 100g of water at 18.3 degrees celsius. Given the specific heat of metal (s= 0.900j/g x degrees celsius)
7.50 mL of 0.125 M HCl is added to the 100.0 mL of the buffer solution. Calculate the new [NH3] and [NH4Cl] for the buffer solution. Calculate the new pH of the solution.
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