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Calculate the molecular weight of the solute in a solution containing 2.47 g of a non-volatile solute in 100 g of acetic acid (CH3COOH) freezes 1.3oC below the normal freezing point for pure acetic acid (kf = 3.9)
Draw the mechanism for the reaction of Cl2 and 3-ethylpentane with light (there should be three different chloroalkane products in addition to HCl).
Consider the following balanced equation: 6HCl(aq) + 2Al(s) ? 3H2(g) + 2AlCl3(s)
After 50 mL of 0.5 M Ba(OH)2 and same volume of HCL of same concentration react in coffee cup calorimeter, you find Q rxn to be 1.386 kJ.
How many moles of hydrogen are produced by the unbalanced reaction below when 0.195 moles of magnesium and 0.102 moles of water are allowed to react? Mg (s) + H20 (l) > Mg(OH)2 (s) + H2 (g)
Problem- Formula H2O, mass in grams 7.6, molar mass 18g/mol, moles .42 mol, 1) What are the mole and how many atoms in the element
When 26.5 grams of a substance absorbs 40.1 J of heat, the temperature of the substance increases from 27.0oC to 68.3oC. What is the specific heat of the substance
When a 0.369 g sample was studied by combustion analysis, 0.662 g of CO2 and 0.0897 g of H2O formed. How many moles of each of the following were in the original sample? C: ? H: ? Cl: ? What is the molecular formula?
Calculate Enthalpy of HNCO given that the enthalpy of the following reaction is -221.4 KJ/mol.
Upon taking the IR spectra of decanedioyl chloride and nylon 6,10, which of the 2 molecules would you expect to have a higher C=O stretching frequency and why
the successive ionization energies of a certain element arei1 589.5 kjmol i2 1145 kjmol i3 4900 kjmol i4 6500 kjmol
If carbon dioxide gas is collected over water at 25 °C and 775 torr, what is the partial pressure of the CO2? The vapor pressure of water at 25 °C is 23.8 torr.
Potassium chlorate decomposes into potassium chloride and oxygen. how many moles of potassium chlorate are required to form 32 grams of oxygen.
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