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Plan and Design Lab: To Determine the water of crystallization in hydrated copper (2) sulphate. Hence determine the formula CuSO4.xH2O.
How many grams of P2O5 gas are present in a 750 ml container that is at 75 degrees C and at a pressure of 590 mm Hg?
A chemist wants to make 6.5 L of a 0.270 M solution. What mass in grams should the chemist use?
How long will it take for 75% of nitrogen dioxide to decompose if the initial concentration of nitrogen dioxide is 1.33M
How many hours will it take to produce 61.0 kg of Al metal by the reduction of Al3+ in an electrolytic cell using a current of 484 amps?
The stereochemistry of the more highly substituted alkenes is difficult to define using the cis and trans designations. Therefore, a more systematic manner of indicating stereochemistry in these systems has been developed that uses an E and Z nome..
How many moles of Na2SO3 were added to the calorimeter cup if 30.0mL 0.50 M NaOCl and 70.0mL 0.50 M Na2SO3 were combined?
write mechanisms for the following reactions, which are used in chemical tests and derivative preparations: (a) the reaction of butanal with 2,4 dinitrophenylhydrazine reagent.
How many grams of KNO3 are needed to make 450 mL of a solution that is to contain 5.50 mg/mL of potassium ion? Calculate the molarity of the solution.
what are the ground state electron configuration of the elements in period 2 of this alternate reality?
a 4.50-g sample of CaO is reacted with 4.34 g of H2O. how many grams of water remains after completion of reaction?
1.0 mol of CaCN2 and 1.0 mole of water are mixed together: CaCN2 + 3 H2O → CaCO3 + 2 NH3 How much NH3 could be produced?
A 3.84-mole sample of a gas is held at a temperature of 297 K and a pressure of 286 atm. Determine the volume of the gas sample.
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