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The combustion of 0.4196g of hydrocarbon releases 17.55kJ of heat.the masses of the products are CO2=1.419g and H20 =0.290g what is the empirical formula of the compound?If the approximate molar mass of the compound is 76g/mol calculate its standard enthalpy of formation.
A 16.96 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 16.58 grams of CO2 and 3.394 grams of H2O are produced.
Consider the following chemical equations: A) Fe2O3(l) + Al(l) ---> Fe(l) + Al2O3(s) If 25.0 g of molten iron(III) oxide reacts with 475 g of aluminum, what is the mass of the iron produced. B) Al(OH)3(s) + H2SO4(l) ---> Al2(SO4)3(aq) + H2O(l) If ..
How many milliliters (mL) of a 1.28 M sulfuric acid solution are needed to neutralize 60.2 mL of a 0.427M sodium hydroxide solution.
concrete etching solution can be used to clean concrete before paining it. the directions tell you to dissolve 680g of
Determine the pH of (a) a 0.20 M NH3 solution, (b) a solution that is 0.20 M in NH3 and 0.30 M NH4Cl
Determine which is the limiting reagent and how many grams of excess reagent remain unreacted. Calculate the theoretical yield of the reaction
What is the purpose of washing the products of a dehydration of 2-Methylcyclohexanol with saturated aqueous sodium chloride and saturated aqueous sodium bicarbonate
The barometric pressure in a cavern was measured using a mercury barometer. A value of 74.2 cm of Hg was obtained. How many atmospheres is this
a work moment and energy all have the same units. what are the difference between them ? answer should be 2 to 3
If acid rain causes the pH of a lake to decrese by 0.010, the [H+] concentration that lake will increase by
Diagram a substitution (oxidation) reaction of ammonia. You may use any alkyl group as a reactant with ammonia. Name the product.
How does the lead test kit actually work explain the chemistry behind the lead test itself. It uses Sodium Sulfide to test for lead.
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