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Find the temerature at which water boils on a day in the mountains when the barometric pressure is 593 mmHg. (Gien the heat of vaporization of water is 40.79 kJ/mol).
Write a chemical equation for LiOH(aq) showing how it is an acid or a base according to the Arrhenius definition.
If a 2.743g sample of MgSO4.7H2O were heated strongly,what would be the expected mass of the cooled dehydrated salt
If the cell potential for a voltaic cell is 0.250 V, and the reduction potential for the oxidation reaction is ?0.150 V, what is the reduction potential for the reaction occurring at the cathode
For three known solutions and an unknown solution of a compound in water: Which one of the following values is possible as the molarity of the unknown
Acid strength decreases in the series HI > HSO4- > HF > HCN. Which of these anions is the weakest base?
A sample of gas has a density of 1.25 g/dm at 30 degrees C and 1.02x10^5 Pa. What is the molecular mas of this gas?
when 0.629 g of ca metal is added to 200.0 ml of 0.500 m hclaq a temperature increase of 102c is observed. assume the
Combustion of a 0.1000 g sample of a compound containing only carbon, hydrogen, and oxygen in excess yields 0.1953 g CO2, and 0.1000 g H2O. A separate experiment shows that the molar mass is 90 Daltons. Calculate the mass percent composition.
Calculte w and delta E for the vaporization of 1.00 mol water at 100 degrees celsius and 1.00 atm pressure.
What is the temperature of the sample, in degree celsius? can you please show steps?
To identify a diatomic gas (\rm X_2), a researcher carried out the following experiment: She weighed an empty 1.00-\rm L bulb, then filled it with the gas at 1.10 \rm atm and 23.0 ^\circ\rm C and weighed it again.
Balance each of the following neutralization reactions. Express your answer as a chemical equation. Identify all of the phases in answer.
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