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1. An organic compound X contains C, H, and O. A 16.69 g sample of X underwent combustion analysis, leading to the production of 44.71 g CO2 and 10.99 g H2O. What is the emperical formula of the compound?
2. Organic compound X from part 1 is a monoprotic acid; as it contains one carboxylic acid within the molecule. A 27.9 g sample of compound X was completely neutralized in 235 mL of 0.362 M calcium hydroxide. What is the molecular weight and molecular formula of compound X? Also propose a structure of compound X with the given information.
calculate the mass of a sample of gold that occupies 5.0 x 10 (exponent -3) cm cubed. the denisty of gold is 19.3 g/cm cubed.
Draw a formula for the lowest molecular weight compound that contains C, H, and possibly O, is a chiral compound, contains ONLY one functional group,
Scientists can use mutants to study metabolic pathways. These organisms have a mutation in a gene encoding a metabolic pathway enzyme that results in the inactivation of that enzyme
Calculate the pressure when the volume is 1.22 L and the temperature is 307 K.
Calculate the grams of solute needed to prepare each of the following solution. 5.5L of a 0.60M KCI solution.
The RUBISCO catalyzed reaction is: a. Exergonic, because Ribulose-,5-biphosphate has enormous energy charge built up from previous phosphorylations
at conditions of 785.0 torr of pressure and 15.0 Celsius temperature, a gas occupies a volume of 45.5 Celsius what will be the volume of the same gas at 745.0 torr and 30.0 Celsius.
The mass of a cube of iron is 379 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
The double-replacement reaction below results in the formation of the precipitate lead chloride. Balance the equation and write the net ionic equation.
A chemical reaction releases 58,500 J of heat into 150 g of water. Assuming no heat is lost to the surroundings
A solution is made by mixing 4.6 mL of 0.274 M Fe(NO3)3 and 656.0 mL of water. What is the concentration of Fe3+ in the resulting solution?
The molar heats of sublimation and fusion of iodine are 62.3 kJ/mol and15.3 kJ/mol, respectively. Calculate the molar heat of vaporization of liquid iodine.
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