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A tank initially at a pressure of 6.70 atm contains 20.0 moles of oxygen gas at 25.0 degrees celsius. Its temperature is then increased to 45.0 degrees celsius, and an addditional 10.0 moles of gas are added. What is the final pressure?
A gas has a volume of 10 L at 0 degrees C. What is the final temperature of the gas in C if its volume increases to 27 L? Assume that amount of the gas and its pressure remain unchanged.
1.00 g of NH4Cl (s) is completely decomposed by heating to 325 °C at 1.00 atm. What volume of gas will be produced? NH4Cl (s)= HCl(g) + NH3(g)
A particular gaseous hydrocarbon that is 82.7% C and 17.3% H bymass has a density of 2.33g/L at 23oC and 746 mmHg. What is the molecular formula of this hydrocarbon?
N2(g) + 3H2 (g) ---- 2NH3(g) a one liter vessel contain 1.60 mole NH3.800 mole N2 and 1.20 mole of H2. What is the equilibrium constant.
Questions on chemical equations - Write a balanced equation for this reaction. Include the states of matter for each compound.
If 5.25mL of 0.1000 M NaOH solution is needed to just neutralize excess acid after 20.00 mL of HCl was added to 1.00 g of an antacid, how many moles of acid can the antacid counteract per gram?
Construct quantum mechanical operators for the following observable: (1) the inverse separation 1/x
What is the molarity of a solution prepared by dissolving 10.5 grams of NaF in enough water to produce 750 mL of solution
764 mL of chlorine gas are added to the reaction chamber at STP. How many grams of silicon metal are needed to react with this volume of chlorine gas?
What would the appropriate substrate concentration be? b) At what substrate concentration would you expect 30% of the enzyme molecules to have substrate bound?
When 3.8 L of propane gas is completely combusted to form water vapor and carbon dioxide at 350°C and 0.936 atm, what mass of water vapor results?
A solution is prepared by adding 5.00 grams of an unkown compound to 217 g of cyclohexane (C6H12). This solution freezes at 4.5 degree C.
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