calculate the mass of forsterite (Mg2SiO4) that contains a million (1.00•10^6) oxygen
Calculate the mass of forsterite Mg2SiO4 that contains a trillion 1×1012 magnesium atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
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 ?
Calculate the mass of gold(III) chloride (Au,C16) that contains a million (1.000 x 10°) gold atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits. x I ?
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
Calculate the mass of dinitrogen tetroxide N2O4 that contains a million 1.000×106 nitrogen atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
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.
A compound of arsenic and oxygen contains 75.7% arsenic by mass . What is the ratio of arsenic and oxygen atoms in the compound?
A compound of molar mass 166 contains only carbon, hydrogen, oxygen, and bromine. Analysis shows that a sample of the compound contains six times as much carbon as hydrogen, by mass. Part A Calculate the molecular formula of the compound. Express your answer as a chemical formula. Enter the elements in the order: C, H, O, Br. C6H7O2Br5
A sample of iron (III) contains 4.9 x 10 to 21st atoms of oxygen. What is the mass in grams?
A 1.80−L vessel contains 4.70 g of a gas at 1.00 atm and 27.0°C. (a) Calculate the density of the gas in g/L. g/L (b) What is the molar mass of the gas?