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A solution containing 80.5g of C6H8O6 dissolved in 210g of water has a density of 1.22 g/mL at 55 C. State the concentration of C6H8O6 in each of the following
(A) Mass percentage
(B) Mole fraction
(C) Molality
(D) Molarity
a solid substance a is soluble in water to the extent of 10 mgml of water at 25 degrees c and 100 mgml of water at 100
what is the concentration of solute particles or ions in moll present in 1 l of the following aqueous solutions? assume
A 2.9 m solution of methanol (CH3OH) in water has a density of 0.984 g/ml. What are the a) mass percent, b) molarity, and c) mole fraction of methanol in this solution?
What is the theoretical yield of bromobenzene in this reaction when 33.0 g of benzene reacts with 71.5 g of bromine?
At 2000°C the equilibrium constant for the reaction is Kc = 2.4 103. 2 NO(g) N2(g) + O2(g) If the initial concentration of NO is 0.100 M, what are the equilibrium concentrations of NO, N2, and O2? A) [O2] _ M B) [N2] _ M C) [NO] _ M
calculate the energy required to bring your substance from absoluter 0 to 4000 degrees c , if you have 5g,75g,300g,1000g,1.5 of your substance.
Calculate amount in unknown from titration and what is the curve supposed to look like - Report the mass of KCl and KI in the original unknown sample
when silver metal reacts with bromine at 298 k a spntaneous redox reaction takes place. calculate e initial andnbsp
Find the enthalpy change for the chemical reaction below PCl5(g) ----> PCl3 (g) +Cl2 From the following equations:
A 8.05-L container holds a mixture of two gases at 39 degree Celsius. The partial pressure of gas A and gas B, respectively, are 0.178 atm and 0.894 atm. If 0.210 mol a third gas is added with no change in volume or temperature, what will the tota..
a sample of helium effuses through a porous container 6.5 times faster than does unknown gas x?what is the molar mass
what mass of sucrose c12h22o11 nbsptable sugar cane sugar beet sugar or usually just sugar must be added with 550 grams
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