Other Chemistry Answers

3) Given: 3Cu(s) + 8HNO3(aq) à 3Cu(NO3)2(aq) + 2NO(g) + 4H2O(aq) Step 1 is done!
How many grams of HNO3 are needed to dissolve 11.45g of Cu?
Step 2: Mass to moles
Step 3: Mole to Mole (Ratio)
Step 4: Mole to Mass

1. Given: 2Al(s) + Fe2O3(s) à Al2O3(s) + 2Fe(l) Step 1 is done!
How many grams of Fe2O3 are needed to produce 6.7 g of Fe?
Step 2: Mass to moles
Step 3: Mole to Mole (Ratio)
Step 4: Mole to Mass

What mass of NaCl is needed to produce 500 mL of a 2.0 mol/L solution?

as2s3+nano3+na2co3 -> na3aso4 + na2so4 + nano2 +co2 determine the theoretical mass of reactants needed to form 50 g of sodium arsenate

It takes 585 J of energy to raise the temperature of 125.6 g mercury from 20.08C to 53.58C. Calculate the specific heat capacity and the molar heat capacity of mercury.

Calculate the standard entropy of formation of liquid ethanol at 25°C. [S0(Cgraphite) = 160.70J/K•mol, S0(O2) = 205.14 J/K•mol, S0(H2) = 130.68 J/K•mol, S0(C2H5OH) = 130.68 J/K•mol]

H2C2O4.2H2O(s) is a primary standard substance. 2.3688 g of oxalic acid dihydrate were completely neutralized by 42.56 ml of NaOH solution. Calculate the molar concentration of the NaOH solution.

What mass of Na2S2O3 is needed to react with 0.12 g of Cl2?

A student uses a pH meter to measure the pH of a 2.0 M solution of ammonium hydroxide. The pH meter reads 12.94. What is the pOH of the solution?

The three major isotopes of lead are Pb-206, Pb-207 and Pb-208. If they exist in the abundances 19.4%, 40.3% and 40.3% respectively, what is the AVERAGE ATOMIC MASS of lead? *SHOW YOUR WORK!