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The concentration of potassium dichromate in waste water is found to be 4.85 X 10-7 M. Calculate the ppm (parts per million; mg/L) of chromium (VI) present in the waste water.
calculate the kg mix- ture from the mixer, kg water evaporated, and kg jam produced.
what concentration of Ba(OH)2 solution is left after complete precipitation of BaS. What is the mass of BaS Precipitated
Calculate the amount of heat energy in each of the following: A) calories removed to condense 125g of steam at 100 degrees celsius and to cool the liquid to 15 degrees celsius
Use bond enthalpy to estimate the enthalpy change for each of the following reactions: (a)H2C=O(g) + HCl(g) ---> H3C¬O¬Cl(g (b)H202(g)+2CO(g)
Question- A solid piece of Copper (Cu) was used as the electrode in each side of the cell and the answers to party a and b are the solutions corresponding to the anode and the cathode.
Problem- Use the data in the Successive Ionization Energies and Electron Affinity tables to determine the following. Assume the values in the Successive Ionization Energies table are given to the ones place. In kJ/mol
What is the heat of the reaction when 1.30 moles of F2 react - Complete the thermochemical.
A 32.22 g sample of a metal that looks like aluminum is heated to 99.8 C in hot water. The metal is then quickly transferred into exactly 50.0 ml of water at 22.9 C in a calorimeter
Separat the components of a water-insoluble mixture of barium sulfate (BaSO4) and nickel (ii) carbonate (NiCO3). Chemicals provied to aid in the separation and recovery of the 2 component mixturee are HCl(aq) and K2CO3(aq)
What is the most interesting water properties? Explain how hydrogen bonding relates to that particular property.
What is the maximum mass, in kilograms, of (NH4)2U2O7 that can be formed from the reaction of 100 kg of water and 100 kg of ammonia with 481 kg of UO2SO4?
Find the mass of barium metal (in grams) that must react with to produce enough barium oxide to prepare 1.0 of a 0.15 solution of.
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