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Butane(C4H10) is used as a fuel where natural gas is not avaiable. How many grams of butane will fill a 45.0 liter container at 27 degrees celsius and 3.05atm?
4 HCl(aq) + MnO2(s)-> MnCl2(aq) + 2 H2O(g) + Cl2(g) Consider the reaction of 1.53 mol HCl with excess MnO2. How many moles of Cl2 form?
Aluminum has many different isotopes. What percentage of the mass of 26Al is attributable to its neutrons
NMR of D exhibits resonance at -4 ppm. - On heating D, a flammable gas and A are formed. - Reaction of C with CH3I affords white solid E whose proton NMR shows a single resonance around 0.2 ppm. Identify A-E.
Four atoms of iron (Fe) are to be combined with three molecules of oxygen (O2). How many total iron atoms and oxygen molecules will be combined during the formation of Fe3O4?
in an extraction of benzoic acid from a three part mixture containing benzoic acid methyl orange and previously
Ultra-high-vacuum experiments are routinely performed at a total pressure of 1.0 x 10-10 torr. Calculate the binary number of collisions, Z11, of N2 molecules (per liter per second) at 350 K under these conditions. The collision diameter of N2 is ..
A 2.50-g sample of a large biomolecule was dissolved in 37.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C.
The heat capacity of the calorimeter was 24.5J/0C and contained exactly 1250g water which increased from 24.620C to 27.430C. Calculate (Delta)U for the reaction in kJ/mol rxn
Write the structural formula and name of the organic product for the following reaction between an alkyne and an alkyl halide.
Write the formula and calculate the molar mass of KHP (KHP is not potassium hydrogen phosphorus). Q2 When conducting this experiment, why is it necessary to standardize your NaOH solution before titrating your unknown acid?
The freezing point (Tf) for t-butanol is 25.50°C and Kf is 9.1°C/m. Usually t-butanol absorbs water on exposure to the air. If the freezing point of a 9.2-g sample of t-butanol is measured as 24.59°C, how many grams of water are present in the sam..
Hydrogen iodide decomposes according to the equation 2HI(g) H2(g) + I2(g), for which Kc = 0.0156 at 400ºC. 0.550 mol HI was injected into a 2.00 L reaction vessel at 400ºC. Calculate the concentration of HI at equilibrium.
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