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A reaction between liquid reactants takes place at -18.0°C in a sealed, evacuated vessel with a measured volume of 5.0L. Measurements show that the reaction produced 46.g of dinitrogen monoxide gas. Calculate the pressure of dinitrogen monoxide gas in the reaction vessel after the reaction. You may ignore the volume of the liquid reactants. Round your answer to 2 significant digits. pressure: atm
What is the molality of 150.0 g of NH3 dissolved in a solution that is 1.25 Liters? The density of the solution is 1.45 g/mL.
When combining with nometallic atoms, metallic atoms generally will... a) lose electrons and form negative ions b)lose electrons and form positive ions c) gain electrons and form negative ions d) gain electrons and form positive ions
What weight of BaCl, 2H,0 (fw 244.25) is needed to react with 0.1503 g of: AgNO, (fw 169.9 g)? (AgCl, FW- 143.32) What is the weight of the resulting?
The average kinetic energy for a volume of gas can be found by multiplying the following: 3/2, temperature (in Kelvin), and the gas constant
Calculate the standard free energy change per mole assocatiated with the formation of solid SrSO4. Use the solubility product. Remember G(standard) equals -RTln(K) when all surface effects are neglected.
How much heat would be given off per mole of NaOH if 4.6g of NaOH dissolves to give off 755J of heat? b)How many grams of NaOH are needed to produce 88 kJ of heat? Please explain the steps to get the answer
How many moles of luminol are present in 2.00 L of the diluted spray?
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
What will be the new pressure relative to the initial pressure? A fire breaks out and increases the Kelvin temperature of a cylinder of compressed gas by a factor of 1.2. What is the final pressure of the gas relative to its initial pressure?
A flexible vessel contains 47 L of gas where the pressure is 1.3 atm. Explain what will the volume be when the pressure is 0.85atm the temperature remaining constant
What is the efficiency of the engine, with work done divided by the heat supplied expressed as a percentage? How could the efficiency be increased?
What is delta H for the following reaction? Mg + 2HCl -> MgCl2 + H2 if 0.158 g Mg reacts in 100.0 mL of solution and changes the temperature from 25.6 °C to 32.8 °C
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