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Calculate the increase in the boiling point, ΔT, for a 1.87 m solution of sucrose (dissolves as a molecule) in water.
The molecules methane (CH4) as well as ammonia (NH3) both has four regions of high electron density around their central atoms, and yet these two molecules have different molecular geometries. Explain why are their molecule geometries different
A solution is prepared by adding 50.0mL of 0.050M HCl to 15.0mL of 0.10M HNO3. Calculate the concentrations of all of the ions in the solution.
The solid state transition of Sn(gray) to Sn(white) is in equilibrium at 18 C and 1atm, with an entropy change of 8.8 J/kmol. The density of gray tin is 5.75 grams/cm3 that of white tin is 7.28 g/cm3. Compute the transition temperature at a pressu..
Explain what is the mass number of a carbon isotope that consists of 6 protons, 6 electrons and 8 neutrons
One mole of an ideal gas undergoes an isothermal reversible expansion, doing 1 kJ of work and doubling the volume. What is its final temperature? How much heat was added to the gas
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz ({\rm MHz}), where 1\; {\rm MHz}=10^6\; {\rm Hz}. Calculate the broadcast wavelength of the radio station 102.7 FM
a) What was the likely coronary artery pathology and how does endothelial damage contribute to it. b) If the patients arterial blood contained 190mlO2/l mixed venous blood 90mlO2/l and his O2 consumption 300ml/min. What is the cardiac output. What..
Glucose oxidation has a standard enthalpy of -2803 kJ/mol. What is the total heat produced by human respiration over the course of one year
A 3.592 g sample of hydrated magnesium bromide, MgBr2.xH2O is dried in an oven. When the anhydrous salt is removed from the oven, its mass is 2.263 g. What is the value of x
What is the minimum concentration of Mg2+ required to begin precipitating Mg(OH)2(s) in a solution of pH 10.82? For Mg(OH)2
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
A reaction mixture in a 10.00-L flask contains 0.27 moles each of hydrogen and fluorine gases plus 0.45 moles of HF. What will be the concentration of H2 when this mixture reaches equilibrium
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