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Explain how many grams of which reactant remains after the reaction of 15.0 g of MnO2 (86.9 g/mol) as well as 30.0 g of HCL (FW = 36.5 g/mol) according to the subsequent chemical equation?
MnO2(s) + 4 HCl(aq) ¡ Cl2(g) + MnCl2(aq) + 2 H2O(l)
Plutonium- 239 decays by alpha emission. Calculate the energy emitted when 2.00mg of Pu-239 decays in this manner
Calculate the 1/2 life for the decomposition of co2 which is first orderwithnrespect to co2 at 1000degree k with k=1.8x10to-13degree sec
certain substance has a temperature of 30 oC, a mass of 10.2 g and a density of 1.02 g/cm3. What will the % concentration, temperature, mass and density of 20.0 mL of this solution be?
A solution of 0.18 mol of the chloride salt of protonated atropine (AH^+), a weak organic base, in 1.0 L of solution has pH = 5.20.
A reaction has a standard free energy change of -12.8 kJ mol^-1 (-3.059 kcal mol^-1). Calculate the equilibrium constant for the reaction at 25 degrees celcius.
a dissolve 8g of ammonium iron iisulfate in 25cm3 of water that has been acidified with 1cm3 of 2m sylfuric acid.add
calculate the mass of MgCO3 precipitated by mixing 10.0 mL of a 0.200 M Na2CO3 solution with 5.0 mL of a 0.0450 M Mg(NO3)2
Calculate the overall energy change in kilojoules per mole for the formation of CaCL(s) from the elements. The following data are needed
the resulting acid dichloride is reacted with 20mL butyl amine (density=0.74 g/mL). After work up and recrystallization, 12.5 g of N,N'-dibutyl adipamide is obtained. What is the limiting reagent and percent yield
How many liters of a 18.0%(m/v) glucose solution would you need to obtain 160 g of glucose
A mixture of CaCO3 and CaO weighing 0.698 g was heated to produce gaseous CO2. After heating, the remaining solid weighed 0.434 g. Assuming all the CaCO3 broke down to CaO and CO2, calculate the mass percent of CaCO3 in the original mixture.
Fundamentals of chemistry - The conditions under which gases behave most ideally and Under the Bronsted?Lowry definition a base
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