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Given the following equation. What is the maximum mass of FeO3 that can be prepared when 360.0g of FeS2 are mixed with 47.5g of oxygen gas?
A balanced equation is this: 4 FeS2 (s) + 11 O2 (g) ----> 2 Fe2O3 (s) + 8 SO2 (g)
How many grams of Mg2SO4 is required to make up 100mL of 20g/L Mg2SO4 solution in water?
Glucose is approximately .10 % of human blood, by weight. Glucose has a formula weight of 180 g/mol. What is the conc of glucose in ppm
what is the concentration M of a NaCl solution prepared by dissolving 15.3g of NaCl in sufficient water given 455mL of solution?
After 42 days a 2.0 g sample of phosphorus 32 contain only 0.25 g of the isotopt. what is the half life of the phosphours 32 ?
Three resonance structures of the following cation are possible. One resonance form is given below, but it is incomplete. Complete the given structure by adding non-bonding electrons and formal charges where necessary
A compound contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen (by mass). calculate empirical formula.
eject electrons from a mixed alkali metal photocathode, what is the longest wavelength in nm of light necessary to eject these electrons by the photoelectric effect?
What volume in milliliters of a 0.0992 M NaOH solution is required to reach the endpoint in the complete titration of a 15.0 mL sample of 0.107 M H3PO4?
A 75 mL solution of 0.030 M Ca(OH)2 is titrated with 0.035 M HCl. Calculate the pH of the mixture after 60 mL of HCl have been added.
the foal heat capacity of the apparatus (bomb plus water) was 4.5 J/C determine the change in internal energy in kJ/mol for one mole of the reaction.
Confirm that the z-component of orbital angular momentum is a basis for an irreducible representation of A2 symmetry in C3v.
The mass percentage of iodine in the compound was determined by converting the iodine in a 0.850 g sample of the compound into 2.31 g of lead(II) iodide. What is the empirical formula of the compound? Could the compound also contain oxygen?
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