Determine the experimental vant hoff factor
Question: The freezing-point depression of a 0.100 m (molality) MgSO4 solution is 0.225 degrees Celsius. Determine the experimental van't Hoff factor of MgSO4 at this concentration.
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Without referring to a periodic table, write the electron configuration of the elements with the following atomic numbers Z=9, Z=20, Z=26,Z=33
10.8 g of particular gas occupies a volume of 41.2 dm^3 at 350 K at 3 atm. What would the volume be at 400 K if we assume the gas behaves ideally. what is the molar weight of this gas if we assume it behaves ideally
What is the volume of a 1.25 M NaOH solution required to neutralize a mixture of 50.0 mL vinegar (5.0% m/V acetic acid) and 50.0 mL concentrated acetic acid (95.0% m/V) solution? Acetic Acid: 60.05 g/mol
In the reaction below, 2.41 atm each of H2 and Br2 were placed into a 1.00 L flask and allowed to react:
The air in the ducts flows at 5.0 m/s, find the width of the ducts. (b) How big would the ducts need to be if the owner wanted the air to flow at 1.0 m/s
If an automobile air bag has a volume of 12.2 L, what mass of NaN3 (in g) is required to fully inflate the air bag upon impact. Assume STP conditions. 2NaN3(s) --> 2Na(s) + 3N2 (g)
Gaseous NOBr is placed in a closed container at -180 oC, where it partially decomposes to NO and Br2: 2 NOBr(g) 2 NO(g) + 1 Br2(g) At equilibrium it is found that p(NOBr) = 0.008230 atm, p(NO) = 0.004080 atm, and p(Br2) = 0.004130 atm.
The problem below concern CACL2. 0.135 gram of cacl2 is dissolved to 250 ml. What is the prepared molarity of the solution
What is the frequency of the photons emitted by hydrogen atoms when they undergo transitions from n=5 to n=3.
At 100 atm the melting temp changes to 351.26 K. Calculate the enthalpy and entropy of fusion of the solid.
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