A 0.125 g sample of unknown hydrocarbon is prepared for combustion analysis. After the hydrocarbon undergoes complete combustion, O.4225 g of CO2 and 0.0865 g of H2O are produced. What is the empirical formula of the unknown? O CH3 CH2 O CH2 O CH

If you were given 14.8 g of C3H8 and 3.44 g of O2, determine the mass (in grams) of the excess reagent after the combustion reaction.

For the reaction represented by the equation SO3+ H2O    H2SO4. 500 g of sulfur trioxide are reacted with excess water. if 575 g of sulfuric acid are produced during this experiment, what is the percent yield of the sulfuric acid?

How many moles of NO₂ would be produced from 2.4 mol of O₂ in the reaction below assuming the reaction has a 57.0% yield? 2 NO (g) + O₂ (g) → 2 NO₂ (g)

The reaction for producing glucose in plants, called photosynthesis, is    6CO2+6H2O→lightC6H12O6+6O2    If a plant produces 9.76 mol C6H12O6, how many moles of CO2 are needed?

2 N2O5 ----> 4 NO2  +  O2 What mass of NO2 can be produced from the complete reaction of 38.2 g of N2O5?

An unknown hydrocarbon, which contains only C and H, is tested by combustion analysis to determine its empirical formula. When 1.50g of this substance is completely combusted, 4.40g of CO2 and 2.70g of H2O are produced.  What is the empirical formula of the unknown?

Combustion of 8.45 mg of an unknown substance yields 14.0 mg CO2 and 7.08 mg H2O. The unknown substance contains only C, H, and O. What is the percentage of each element in this substance? Percentage of C = Percentage of H = % Percentage of O =

Black smokers are found in the depths of the oceans. Thinking that the conditions in these smokers might be conducive to the formation of organic compounds, two chemists in Germany found the following reaction could occur in similar conditions. 2 CH3 SH + CO CH;COSCH3 + H2S If you begin with 24.2 g of CH3 SH and excess CO, what is the theoretical yield of CH, COSCH3 ? g CH3COSCH3 If you isolate 11.4 g of CH, COSCH3, what is the percent yield of CH, COSCH; ? Submit Answer Try Another Version 9 item attempts remaining

The combustion of propane may be described by the chemical equation 3 CO2 (g)4 H20(g) C3H(g)5 2g) How many grams of O2(g) are needed to completely burn 57.4 g C3H (g)? mass O2 g O2