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Hydrogen sulfide is composed of two elements: hydrogen and sulfur. In an experiment, 6.500 g of hydrogen sulfide is fully decomposed into its elements.A) if 0.384g of hydrogen is obtained in this experiment, how many grams of sulfur must be obtainedB) What fundamental law does this experiment demonstrate?C) How is this law explained by Dalton's atomic theory?
Determine the empirical and molecular formulas of each of the following substances:a) Ibuprofen has 75.69% C, 8.80%H and 15.51%O by mass and has a molar mass about 206g/molb) Cadaverine has 58.55%C, 13.81%H and 27.40%N by mass, its molar mass is 102.2g/molc) Epi has 59.0%C, 7.1%H, 26.2%0 and 7.7%N by mass; its MW is about 180 amu.
When a mixture of 10.0g of acetylene(C2H2) and 10g of oxygen (O2) is ignited, the resultant combustion reaction produces CO2 and H20.A) write a balanced chemical equation for this reactionB)Which is the limiting reactant?C)How many grams of C2h2, o2, co2 and H2o are present after the reaction is complete?
what we observed that 1.00 mole Hydrogen, 1.00 mol Iodine and 1.00 mole hydrogen iodide are introduced into a container of capacity 1.00-L. compute the concentrations of each species if equilibrium is reached?
Explain why the boiling point of an aqueous solution that is 1.0 m in glucose (C6H12O6) is 100.51oC whereas The boiling point of an aqueous solution that is 1.0 m in NaCl is 101.02 oC .
How can I make up 100ml of a solution containing Compound A (solid, purity of 83.7%) at 90 ug/ml and compound B (liquid, density 1.12 and purity of 90.5) at 30 ug/mL for HPLC reference standard.
What is the theoretical yield of SO 3 produced by the quantities described in Part A and How many Oxygen molecules are required to react with 7.82g of S?
Draw the enantiomer of proline which would give rise to the absolute stereochemistry and draw a proposed catalytic cycle for the transformation and how does the catalyst activate the substrate
Determine what was the % of excess air used? If The reactant entered at 93 degrees Celsius and
Litre of white gas, and density of the gas is 0.710 g/cm 3 . Calculate the mass of the fuel and express your answer in kgs?
What is the average speed of the sprinter if A sprinter set a high school record in track and field, running 200. M in 22.0s .express your answer in kilometers per hour?
Determine theoretical yield, limiting agent and excess reagent - How much excess reagent remains after the reaction goes to completion
Estimate dissociation energy of HF using simpe additivity rule If given that d(H-H) and D(F-F) IN H 2 is 336kj/mol and F2 is 258 kj/mol
Suppose .30 mol of Ammonia and .40 mol of oxygen are added to a 5L container. If Y mol of water is present at equilibrium, calculate the equilibrium concentration of oxygen?
Determine the mass of this substance should evaporate in order to freeze 190 grams of water at 25 degree Celsius initially? It is given that the heat of fusion H 2 O= 334 specific heat of H 2 O= 4.18
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