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When iron(III) oxide reacts with hydrochloric acid, iron(III) chloride and water are formed. How many grams of iron(III) chloride are formed from 10.0 g of iron(III) oxide and 10.0 g of hydrochloric acid?
A hydrate of calcium chloride contains 49.3% water and has a formula weight of 219 g/mol. Calculate the molecular formula of the hydrate.
Does a mutation causing a substitution of one base pair in a strand of DNA necessarily result in a new amino acid in the protein coded for that gene? Explain.
A sample of gas occupies a volume of 115mL at a pressure of 720. mmHg. Calculate its volume at STP.
Which one of the following would slow the rate of increase of atmospheric CO2? Building and operating more coal-fired power plants
Ddetermines how many tablets should be given to her if there are five tablets in stock.
Calculate the volume of dry CO2 produced at body temperature (37°C) and 0.966 atm when 26.0 g of glucose is consumed in this reaction.
A 28.0-g sample of nitrogen gas combines completely with 6.0 of hydrogen gas to form ammonia. What is the mass of ammonia formed.
Derive an expression for the compression factor of a gas that obeys the equation of state P(V - nb) = nRT
Octane (C8H18) undergoes combustion according to the following thermochemical equation: 2C8H18(l) + 25O2(g) ? 16CO2(g) + 18H2O(l) ?H°rxn = -11,020 kJ/mol. Given that ?H°f[CO2(g)] = -393.5 kJ/mol
Consider the following observations taken on successive, cloudless autumn mornings. On the first day, a considerable amount of frost is on the grass at sunrise. On the second day, only dew appears on the grass. On which day is the temperature incr..
Consider the following combustion reaction: 2C4H10 + 13O2 -> 8O2 + 10H20. 125 g of C4H2O react with 415g O2.
Write a balanced chemical reaction for the formation of a free fatty acid from a soap molecule under acidic conditions. Why would the formation of free fatty acids inhibit the cleaning ability of the soap
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