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Question- A salt, MY, crystallizes in CsCl structure, a body-centered cubic structure with a Y- anion at each cube corner and an M+ cation at the cube center. Assuming that the Y- anions touch each other and the M+ cation at the center, and the radius of Y- is 1.50 angstroms, the radius of M+ is
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explain how many grams of magnesium sulfate can you produce. Finally if you have 2.00 grams of magnesium as well as 10.0 ml of 6.0 M sulfuric acid, explain how much hydrogen gas can be produced which is the limiting reagent.
Water is added to 25.0 ml of .716 MKNO3 solution until the volume of the solution is exactly 500 ml. What is the concentration of the final solution?
A 25ml sample of 0.200 M HCO2H(aq) is titrated with 0.100 M KOH (aq). What is the pH at the equivalence point. (Ka of HCO2H = 1.8 x 10^-4)
A volume of 80.0mL of H2O is initially at room temperature (22.0) Celcius. A chilled steel rod at 2.00 is placed in the water. If the final temperature of the system is 21.1 Celcius, what is the mass of the steel bar
The boiling point of ethanol is 78°C. How much heat is required to heat 100 grams of ethanol from 25°C to its boiling point and then to turn it into a vapor
The combustion of ethanol, C2H6O (MW = 46.0 g/mol), produces CO2 (MW = 44.0 g/mol) and water (18.0 g/mol). In a lab experiment, the reaction occurs using 4.60 g of ethanol in a 1.00 L container at body temperature (310 K) and 0.970 atm according t..
For the following reactants, predict the products formed (if any) and write the balanced molecular equation, complete ionic equation and net ionic equation. Ca(s)+ HCI(aq)
Calculate the [Cr+3] in equilibrium with Cr(OH)4-(aq) when 0.010 mol of Cr(NO3)3 is dissolved in a liter of solution buffered at a pH of 7.3. Kf for Cr(OH)4-(aq) is 8.0 x 1029.
Explain why the salt of a weak acid, as well as the acid itself, must be present to form a bu?er solution.
Select the reagent from the list below that could be the basis of a simple chemical test that would distinguish between each of the following:
Another Reaction, A -> Products, is a first order reaction. An experiment was performed at 25C which determined the rate constant is 0.015min^-1. THe activation energy of this reaction is +34.8kJ/mol. Calculate the temperature, in C, of the reacti..
A 739 mL gas sample at STP is compressed to a volume of 244 mL, and the temperature is increased to 24 ? C. What is the new pressure of the gas in Pa? Answer in units of Pa.
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