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The 0.200g of a compound containing C,H and O was combusted as well as produced 0.2998g of CO2 and 0.0819g of H2O. If the molecular mass of the compound was find out to be 176.30, explain what is the molecular formula for the compound?
Sparkling wine is bottled under a CO2 pressure of 4.1 atm. The solubility of CO2 at 4.1 atm is 0.70 g/100 g H2O. What is its solubility after the bottle is opened if the partial pressure of CO2 is 3.4x 10-4 atm
Siler metal crystalizes in a face-centered cubic lattice with L as the length of one edge of the unit cube. The center-to-center distance between nearest Silver atoms is....L/2 or 2 1/2L or 2L or L/2 1/2 or none of the above
A compound gave an orange precipitate when reacted with 2,4 -DNP and showed a strong absorbance. The Tollens test shows a negative result
a sample of chloroform is found to contain 11.3 g of carbon 100.2 g of chlorine and 0.95 g of hydrogen. if a second
All of the common noble gases are mono atomic and low boiling. Their boiling points in °C are: Ne,-245: Ar,-186;Kr,-152: and Xe, -107. Using the periodic relationship between the noble gases, predict the boiling point of Radon.
A piece of iron weighing 85.690 g was burned in air. the mass of the iron oxide produced was 118.350 g. What are the moles of iron in the original sample
polypropylene is made of one kind of monomer. give the two monomers used to make nylon 66. why are two monomers needed
Given the following data table of average bond enthalpies, estimate the ΔH^rxn for the reactions 2H2+O2-- 2H2O. What is the hybridization of xenon in each of your Lewis resonance structures?
Upon further analysis, the compound is found to be 25.305% C and 74.695% Cl. What is the molecular formula of the compound?
M+ is added to a solution of 0.0035 M X- and 0.0016 M Z-. MX has Ksp = 8.2 × 10^-9, while MZ has Ksp = 1.7 × 10^-10. What percentage of the Z- is still in solution (not precipitated) when the MX just starts to precipitate? Answer in units of %.
a bacterial culture isolated from sewage produced 35.5 ml of methane ch4 at 31 oc and 753 mmhg. what is the volume of
And 25.43 ml of Na2S2O3 x 5H2O reacts with the KIO3. What's the concentration of the thiosulfate solution
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