Organic Chemistry Answers

the decomposition of iron iii oxide into its elements uses 98 kj/mol of energy. what is the thermochemical equation and the enthalpy diagram.

I want to achieve the 10mcg concentration per 60ml of juice

The powder spec is

2500mcg/g concentration
Molecular mass 384.65g/mol

Find the mass of NaCl that was made (called the 'experimental mass') by subtracting the masses of the dish and foil that was measured at the beginning from the combined mass of the dish, foil and NaCl at the end.

Calculate the mass of salt (NaCl) that is expected to be made based upon the mass of NaHCO3 used. This is called the 'theoretical mass of NaCl'.

Balance the reaction that occurs: HCl (aq) + NaHCO3 (s) --> CO2 (g) + H2O (l) + NaCl (aq)
*** for this Cl is chlorine, not carbon and iodine

How many grams of MoO3 are used if 210 grams of H2O are made?
MoO3 + H2 --> Mo + H2O

How many molecules of Cr2S3 will be made when 3.5(40)²⁴ molecules of S8 are reacted?
Cr + S8 --> Cr2S3

If I react 2.9(10)²⁰ molecules of C12H22O11 how many grams of COs will be made?
C12H22O11 + O2 --> CO2 + H2O

please help me balance these equations
1. Zn(s) + NO3−(aq) = Zn2+(aq) + NH3(aq)
2. CuS(s) + NO3−(aq) = Cu2+(aq) + S(s) + NO(g)

How many molecules of Ag2So4 will be made if 2.7 grams of AgNO3 are reacted?
AgNO3 + H2SO4 --> Ag2SO4 + HNO3