What is the maximum mass of pure tungsten that could be extracted from 6.5 kg of...
What is the minimum mass of calaverite (AuTe), a gold ore, from which 100. g of pure gold could be extracted? Be sure your answer has a unit symbol, if necessary, and is rounded to the correct number of significant digits. xo xs ?
Calculate the mass of glucose C H20 ) that contains a billion (1.0x 10') oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits. x 6 ?
The useful metal manganese can be extracted from the mineral rhodochrosite by a two-step process.... In the first step, manganese(II) carbonate and oxygen react to form manganese(IV) oxide and carbon dioxide: 2MnCO3 + O2=2MnO2 + 2CO2 In the second step, manganese(IV) oxide and aluminum react to form manganese and aluminum oxidide: 3MnO2 + 4Al = 3Mn + 2Al2O3 Suppose the yield of the first step is 65.% and the yield of the second step is 80.%. Calculate the mass of...
what is the answer? Calculate the mass of scheelte (Cawo.) that contains a billion (1.0x 10") oxygen atoms. Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits. 00 0
Interconverting number of atoms and mass of compound Calculate the mass of diphosphorus pentoxide (P,05) that contains a million (1.0 x 10°) phosphorus atoms. Be sure your answer has a unit symbol if necessary, and round it to 2 significant digits.
An iron ore contains 31 % FeO, by mass Part A What is the maximum mass of iron that can be recovered from 112 kg of this ore? Express your answer using two significant figures.
O = CAL REACTIONG interconverting number of atoms and mass of compound Calculate the mass of hydrazine (N_H.) that contains a million (1.00 x 10) hydrogen atoms. Be sure your answer has a unit symbol necessary, and round it to 3 significant digits.
Calculate the mass of dinitrogen tetroxide (N4O4 ) that contains a billion (1.000 x 109 )nitrogen atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
5.000 g of Compound X with molecular formula C,H, are burned in a constant-pressure calorimeter containing 40.00 kg of water at 25 °C. The temperature of the water is observed to rise by 1.331 °C. (You may assume all the heat released by the reaction is absorbed by the water, and none by the calorimeter itself.) Calculate the standard heat of formation of Compound X at 25 °C. Be sure your answer has a unit symbol, if necessary, and round...
Calculate the mass of glucose (CH 20) that contains a trillion (1.000 x 10!2) carbon atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.