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a power plant 55 kg of fly ash per hour up the stack. the flow rate of the hot gases in the stack is 1.0 m^3/s. what is the concentration of the fly ash in micrograms per cubic meter?
For the following reaction, 148 grams of calcium hydroxide are allowed to react with 73.0 grams of hydrochloric acid .
- Ca(OH)2 (aq) + 2 HCl (aq) CaCl2 (aq) + 2 H2O (l)
What is the FORMULA for the limiting reagent?
What is the maximum amount of calcium chloride that can be formed?
What amount of the excess reagent remains after the reaction is complete?
When excess of NH3 react with limited amount of Chlorine gas two nitrogenous products X & Y are obtained. The difference in oxidation states of Nitrogen in X & Y is
When 0.85mol of zinc nitrate react with 0.254mol of sodium phosphate insoluble zinc phosphate forms. Which is the limiting reactant and which is the reactant in excess?
In the decomposition of phosphoric acid, H3PO4(s), pyrophosphoric acid and water form. How many moles of phosphoric acid are needed to produce 8.34mol of pyrophosphoric acid?
The analysis of an unknown compound shows that it is made up of 14.14% C, 2.37% and 83.48% O. What is the chemical formula of the compound if it’s molar mass is 84.93g/mol?
Europium metal crystallizes in a body–centered lattice with the unit cell measuring 4.58
A° along each edge. Determine the volume of a unit cell.
Calculate the oxidation number of chromium in an unknown salt if the electrolysis of the salt yields 9.71g of chromium at the cathode after a current of 10A is passed through a cell for 1.5 hours.the relative atomic mass of chromium is 52.
1. How many grams of Copper Sulphate Pentahydrate (CuSO4.5H2O) are needed to prepare a 500 ml of 4% CuSO4 solution?
If the pOH of an aqueous NaOH solution is 11.55, what is the [H3O+] for this solution?
