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A voltaic cell consists of a Zn/Zn^2 + half-cell and a Ni/Ni^2 +half-cell at 25C. The initial concentrations of Ni^2 + and Zn^2 + are 1.70 M and 0.100 M, respectively. What is the initial cell potential?
Use VSEPR theory to describe the bonding in propene. Also, include bond angles in your explanation.
A 50.00-mL solution containing NaBr (FW=102.894g/mol) was treated with excess AgNO3 to precipitate 0.2146 g of AgBr (FW= 187.772g/mol). What was the molarity of NaBr in the solution
What volume of oxygen is needed to react with solid sulfur to form 6.20 L of sulfur dioxide?
A 20.00 mL solution of nitric acid, HNO3, required 25.7 mL of 0.1313 M NaOH to reach a bromthymol blue end point. What is the concentration of the nitric acid solution
Determine the binding energy of F-19 nucleus. The F-19 nucleus has a mass of 18.99840325 amu. A proton has a mass of 1.00728 amu, a neutron has a mass of 1.008665 amu.
In a typical experiment, you drop a gelatin capsule containing 0.1458 g of an Al-Zn alloy sample into an HCl solution. a) Write the equations that represent the chemical reactions that take place after the capsule has dissolved in HCl?
Calculate the pH after 0.10 mol of HCl has been added to the original solution. Assume no volume change on addition of HCl
1. nitrogen and oxygen gases react to form dinitrogen trioxide gas.nbsp2 n2g 3 o2g 2 n2o3gat a certain temperature and
A certain liquid has a vapor pressure of 92.0 Torr at 23.0 °C and 398.0 Torr at 45.0 °C. Calculate the value of ?H°vap for this liquid. Calculate the normal boiling point of this liquid.
the background section describes why you want the bleach to be far in excess of the dye. state how much greater the
a test tube containing a mixture of kcl kclo3 and mno2 having a total weight of 23.584 g was heated to compose the
The mass spectrum of an organic compound shows the relative abundance of M to be 34.29% and M+1 to be 8.901%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundance: 12C is 98..
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