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Liquid water at 0oC and atmospheric pressure has a density of 1.000 g/cm3. At this condition, ice has a density of 0.917g/cm3.How much work is done at these conditions by 1 kg of ice as it melts to liquid water?
CO(g) + 2H2(g) = CH3OH(g) , what is the equilibrium constant? , where CH3OH = 0.0412 atm, H2 = 0.274 atm, CO = 0.914 atm.
A compound is 54.53% C, 9.15% H, and 36.32% O by mass. What is its empirical formula
What mass of NO2 can be produced by the complete reaction of 43.00 g of ammonia with 105.00 g of oxygen:
A solution containing CaCl2 is mixed with a solution of Li2C2O4 to form a solution that is 3.5 x 10^-4 M in calcium ion and 2.33 x 10^-4 in oxalate ion. What will happen once these solutions are mixed. Ksp(CaC2O4) = 2.3 x 10^-9
Lewis Structure and state which of the given compounds are isomers - There are three compounds are given as I. pentane , II. 2-methylbutane , III. 2,3-dimethylbutane , IV. 2,2-dimethylpropane V.
A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s) 2 Hg(l) + O2(g) Hrxn = 181.6 kJ (a) How much heat is needed to decompose 504 g of the oxide? kJ
what is the free energy change (DG) when protons are pumped across the membrane from the side of the membrane with low concentration to the side with high proton concenration at body temperature (37C)? The membrane potential is 0.06. Report your a..
In a plant fossil, you find that the C^14 has decayed to 1/16.0 of the original amount. How long ago was this plant alive? Express your answer numerically in years.
Draw the Lewis dot structure of ethanol. Estimate the bond angles and the hybrid orbitals found for each carbon and for the oxygen.
If 7.25 g of Al and 30.7 mL of 1.22 M HNO3 are allowed to react according to the equation below: 2 Al (s) + 6HNO3 (aq) -----> 3H2 (g) + 2Al(NO3)3 (aq) a) determine the limiting reactant. b) What is the volume of Hydrogen in liters that produced a ..
What minimum amount of AX(s) lattice energy might lead to compound formation if you predict that the following hypothetical ionic compound AX is unlikely to form. In this compound, A forms the A+ cation, and X forms the X anion.
how much of this chemical would have been measured? Express in terms of measured concentration C (mg/litre) of the filtered sample?
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