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A sample of gas occupies a volume of 73.8 mL . as it expands , it does 127.5 J of work on its surroundings at a constant pressure of 783 torr what's the final volume of the gas?
Draw the molecule by placing atoms on the grid and connecting them with bonds
The presence of reductants can enhance the thermodynamic favorability of the decomposition of nitrous oxide (N2O). Calculate deltaH
a balloon is filled to a volume of 7.00 times 10^2 mL at a temperature of 20.0 degrees celcius. the balloon is then cooled at constant pressure to a temperature of 1.00 times 10^2 K. what is the final volume of the balloon?
The hydrogen gas formed in a chemical reaction is collected over water at 30 at a total pressure of 737. What is the partial pressure of the hydrogen gas collected in this way
A student is required to generate 90.0 mL of carbon dioxide at 750 mm Hg and 21C using potassium hydrogen carbonate and HCl. What is the mass of the potassium hydrogen carbonate needed?
What is the net ionic equation for this reaction occurring in water: Potassium sulfate and barium chloride are mixed to form potassium
The pH of the solution at equivalence was 8.4. At 9.3 mL the pH was 5.3. What is the Ka for this acid? Please show all the work
The mineral rhodochrosite [manganese (II) carbonate, MnCO2] is a commercially important source of manganese. Write a half reaction for the oxidation of the manganese in MnCO3 to MnO2 in neutral groundwater
Solid silver nitrate is added to a solution that is 0.0010 M each in NaCl, NaBr, and NaI. For AgI, ksp= 1.5x10^-16, for AgBr, ksp= 3.3x10^-13, and for AgCl, ksp= 1.8x10^-10
Write lewis structures for each of the following species. Use expanded octects as necessary.
The equilibrium constant KC for the reaction 2H2(g) + CO(g) ? CH3OH(g) is 135 at a certain temperature. If there are 5.23 ? 10?2 moles of H2 and 3.73 ? 10?
the calculation supports the idea that thermal pollution around cooling vents of nuclear reactors is detrimental to marine life.
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