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As 390 g of hot milk cools in a mug, it transfers 30,000 J of heat to the environment. What is the temperature change of the milk? The specific heat of milk is 3.9 J/g·°C. Show your work for credit.
Solubility of Mg(OH)2 in water is 9.0z10^-4 g/100mL. What volume of .006 M HNO3 is required to neutralize1.0L of saturated Mg(OH)2 solution
First, dihydrolipoate goes to the active site of dihydrolipoyl dehydrogenase, where it gets oxidized by FAD making it back into lipoate (making the FAD into FADH2). Then, the FADH2 is reoxidized into FAD by NAD+ (making it into NADH).
Question- Consider the titration of 37.2mL of 0.270M HF with 0.200M NaOH. Calculate the pH at each of the following points A. How many milliliters of base are required to reach the equivalence point
Given: A sample of 0.400 moles of an ideal monatomic gas has an initial pressure of 1.20 atm and initial volume of 9.50 L. The gas expands at constant pressure to a new volume of 19.0 L.
The 13C nucleus is a spin 1/2 particle, which means it can orient in two directions in a magnetic field (with the field and against it). The difference in energy between the two orientations is given by:
The analysis showed 92% CO2, 2.2% NO, 1.7%SO2 and 4.1%H2O by mass. what is the partial pressure exerted by nitric oxide (NO)
At 22 degrees C an excess amount of generic metal hydroxide M(OH)2 is mixed with pure water. The resulting equilibrium solution has a pH of 11.05. What is the Ksp of the salt at 22 degrees C
The Iron(3) ion have five unpaired electrons. In octahedral coordination complexes, it may have either one or five unpaired electrons. Using valence bond theory: 1. Draw and name the hybrid orbital schemes for these two situations
Problem- Pure benzophenone freezes at 48.1degee c. A solution of 1.25g of biphenyl c12h10 molar mass=154.2g/mol) plus 25.38g of benzophenone froze at 16.8degree c. Calculate de Kf of benzophenone.
An emerald gemstone is an impure form of the mineral beryl, Be3Al2Si16O18. What is the percentage of silicon in the mineral?
2C2H6 + 7O2---> 4CO2 + 6H2O if the reaction produces 2.75 mol of H2O how many grams of CO2 are also produced?
explain to anyone that wants to listen to you that NaCl is an extended structure formed from ionic bonds that doesn't have individual molecules
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