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For a particular redox reaction MnO2 is oxidized to MnO4- and Cu2 is reduced to Cu . Complete and balance the equation for this reaction in basic solution.
the concentrations of the four main individual ionic compouns are 0.48 M NaCl, 0.090 M MgCl2, 0.0250 M CaCl2 and 0.0050 M KCl. what is the total mass of salt in one liter of seawater?
The pH of an aqueous solution containing only a monoprotic weak acid has a pH of 4.1. What is the concentration of hydronium ion, H3O+, in the solution? (a)2 x 10?3 M (b)2 x 10?4 M (c)8 x 10?4 M (d)8 x 10?5 M (e)0.61 M
what is the percent yield of a reaction in which 262 g phosphorus trichloride reacts with excess water to form 102 g
A solution of HCl has a pH of 2.50. How many grams of HCl are there in 0.250 L of this solution? How many grams of HCl are in 250mL of an HCl solution that has twice this pH
If, in a certain experiment, over a specific time period, 0.0035 mol PH3 is consumed in a 2.0 L container during each second of reaction, what are the rates of production of P4 and H2 in this experiment?
A reaction mixture in a 5.21 L flask at a certain temperature contains 27.1g CO and 2.32g H2. At equilibrium, the flask contains 8.63g CH3OH
twenty grams of a solute are added to 100g of water at 25c. the vapor pressure of pure water is 23.76 mmhg the vapor
If the hindenburg held 200000 m^3 of hydrogen gas at 23 degrees C and 1.0 atm, what mass of hydrogen was present
an An automobile gasoline tank holds 42 kg of gasoline. When the gasoline burns , 168 kg of oxygen are consumed and carbon dioxide and water are produced. What is the total combined mass of carbon dioxide and water that is produced
What is the wavelength of an electron (mass= 9.11 x 10^-31 kg) moving with a velocity
how many mL of 1.00 M hydrochloric acid is needed to prepare a 100.0 mL solution of hydrochloric acid with pH = 5.0 that also contains 0.01667 M MgCl2?
Carbon monoxide and water vapor, each at 190 Torr, were introduced into a 250 mL container. When the mixture reached equilibrium at 690 ?C, the partial pressure of CO2(g) was 108 Torr.
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