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The mineral rhodochrosite [manganese (II) carbonate, MnCO2] is a commercially important source of manganese. Write a half reaction for the oxidation of the manganese in MnCO3 to MnO2 in neutral groundwater where the principal carbonate species is HCO3-. Add H2O, H+, and electrons as needed to balance the half reaction.
When separated from a water solution, CuSO4 forms a hydrate with 5 water molecules per formula unit. If 38 g of anhydrous CuSO4 are dissolved in water, what mass of the hydrate could be recovered from the solution?
A 5.0 ml sample of vinegar was titrated with 7.2 ml of 0.55 M NaOH. if the density of vinegar solution is 1.00g/ml, what is the mass percent of acetic acid present.
Exactly 5.00 days later, the rate of decay was found to be 177 disintegrations per minute. Calculate the half-life, in days, for the decay of this sample.
degree C is mixed with 35.2 g/mL of water (density = 1.0 g/mL) initially at 24.4 degree C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
at 75 degrees celsius, a gas has a volume of 3.22 dm^2. What volume will it occupy at 75 k?
What mass of NaOH is needed to precipitate the Cd2+ ions from 44.0 mL of 0.500 M Cd(NO3)2 solution?
Separation scheme for isolating benzoic acid, Could you please show me a separation scheme for isolating benzoic acid from a reaction mixture if mixing a Grignard
acetylene (C2H2) torches are used in welding. How much heat in kJ evolves when 5.0g of C2H2 (d=1.0967kg/m^3) is mixed with a stoichiometric amount of oxygen gas?
Calculate the minimum number of grams of solid that must be combusted to provide the energy necessary to convert 2.50kg of from its solid form at -14.0 C to its liquid form at 60.0 C .
How many grams of oxygen are collected in a reaction where 231 mL of oxygen gas is collected over water at a temperature of 25°C and a total pressure of 697 torr?
What is the mass of a glass empty beaker? What is the mass of a glass beaker with 60mL water?
why would a direct measurement of the heat of decomposition of sodiium hydrogen carbonate be impossible usig a coffee cup calorimeter.
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