Determine the total pressure
In a 50.0 L container, 4.00 moles of chlorine and 2.00 moles of bromine are placed and kept at 293.0 K until equilibrium is reached. At equilibrium there are 82.63 g of Br2 (l). Determine the total pressure in the 50.0 L container at equilibrium
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Small samples of oxygen gas needed in the laboratory can be generated by any number of simple chemical reactions, such as 2KClO3(s) 2 KCl(s) + 3 O2(g) According to this balanced chemical equation, how many moles of oxygen gas are produced from the
Consider a molecule with spacing between two energy levels of 0.250 kJ mol-1. Calculate the wavelength and wavenumber of the photon that would be needed to lead to an excitation between these two levels. What part of the electromagnetic spectrum w
A weak acid (HA) is found to ionize 17.8% when mixed at a concentration of 0.3 mol/L. What is the value of Ka for this acid?
What is the appearance of the flame when the air intake is covered? What temperature does the thermometer read as you retrieve it from your drawer?
Ethanol (C2H5OH) melts at -114°C. The enthalpy of fusion is 5.02 kJ/mol. The specific heats of solid and liquid ethanol are 0.97 J/g·K and 2.3 J/g·K, respectively. How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -135°C t
Container Y is a 3 L container that contains 1.8 L of acetone. Both containers and contents are at 28 ? C. Which of the following is true?
A gas has a volume of 50.0 cm3 at a temperature of -73°C. What volume would the gas occupy at a temperature of -123 °C if the pressure stays constant?
How many ounces would 12.30 moles of sulfur hexafluoride weigh?
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
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