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- Calculate the mass of iron (III) oxide (Fe_2O_3) that contains a million (1.000 x 10^6) oxygen atoms. be sure your answer has a unit symbol if necessary, and round it to 4 significant answers. Note: underscore represents the subscript.What is the maximum mass of pure silver that could be extracted from 2.5kg of argentite, a silver ore with the chemical formula Ag2S? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of significant digits.Calculate the mass of vanadium(V) oxide V2O5 that contains a million 1.000 x 10^6 vanadium atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
- This is the chemical formula for carvone: C10H14O An organic chemist has determined by measurements that there are 96. moles of carbon in a sample of carvone. How many moles of oxygen are in the sample? Round your answer to 2 significant digits.A high-performance heater that burns propane, C3H8(g), is adjusted so that 100.0 g of O2(g) enters the system for every 100.0 g of propane. Calculate the mol ratio of oxygen to propane. Write the answer as a decimal containing number.What is the maximum number of pure gold that could be extracted from 95.0 g of calaverite, a gold ore with the chemical formula AuTe2? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of significant digits.
- Calculate the mass of hydrazine (N_2H_4) that contains a billion (1.000 x 10^9) nitrogen atoms. Be sure your answer has a unit symbol if necessary, and round it to significant digits. NOTE: underscore represents the subscriptThis is the chemical formula for talc (the main ingredient in talcum powder): Mg3Si2O52OH2 An analytical chemist has determined by measurements that there are 13. moles of silicon in a sample of talc. How many moles of hydrogen are in the sample? Round your answer to 2 significant digits.Calculate the mass of forsterite (Mg2SiO4) that contains a million (1.000x10^6) magnesium atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
- Calculate the mass of dinitrogen tetroxide. (N2O4) that contains a million (1.000x106 )oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.1. Provide the chemical formula (including brackets where appropriate) or systematic name for the following compounds. (a) gold(I) hypoiodite (b) HI(aq): (f) Ca(ClO4)2·4H2O: 2. What mass (in g) of chlorine atoms are there in a sample that consists of 5e+23 molecules of molecular chlorine? INSTRUCTIONS: Report your answer to 3 significant figures in scientific notation unless stated otherwise. DO NOT include the units in your answer.This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): CH3CO2H An analytical chemist has determined by measurements that there are 38. moles of oxygen in a sample of acetic acid. How many moles of hydrogen are in the sample? Be sure your answer has the correct number of significant digits.