Write the net ionic equation
Write the net ionic equation for any precipitation reaction that may be predicted by the solubility rules on the information page, when aqueous solutions of iron(III) nitrate and sodium sulfate are combined.
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Determine the molecular formula of a compound which has a empirical formula of CH3 and a molar mass of 60.0 g/mol.
When 0.6 g of impure zinc reacted with an excess of hydrochloric acid, 135 mL of hydrogen was collected over water at 10?C. The external pressure was 745.4 Torr.
A voltaic cell is constructed with two Zn+2-Zn electrodes. The two cell compartments have [Zn+2]=5.00 M and [Zn+2]=1.00 x 10^-2 M, respectively. What is the standard emf of the cell?
The reactant concentration in a first-order reaction was 6.80×10-2 M after 10.0 s and 4.40×10-3 M after 65.0s. What is the rate constant for this reaction?
Exactly 10.0 mL of an unknown sample of Ni2+ gave a current of 2.36 ?A. After 0.500 mL solution of 0.0287 M Ni2+ was added to the 10.0 mL sample, the current increased to 3.79 ?A. What is the concentration of Ni2+ in the sample?
Calculate the concentrations of all species at equilibrium for each of the following cases.(a) 1.4 g H2O and 2.4 g Cl2O are mixed in a 1.0 L flask.
Examine the reaction you have written. What will be the effect of decreased pressure on the system on the concentrations of [O2] , [HbO2] and [Hb] in the blood
the explosive, TNT, is composed of 37.0% carbon, 2.2% hydrogen, 18.5% nitrogen and the rest oxygen. if the molar mass of TNT is 227 g/mol, what is the empirical and molecular formula for TNT?
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