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One of the most common causes of inaccurate melting points is too rapid heating of the melting point bath. under these circumstances, how will the observed melting point compare to the true melting point.
What effect would the incomplete drying of a sample have on the melting point
What is the pseudoformula of ascorbic acid, given that ascorbic acid contains 3.41 mol of carbon, 4.53 mol of hydrogen, and 3.41 mol of oxygen
To find the volume of a flask, it is first evacuated so it contains no gas. Next, 2.2 g CO2 is introduced into the flask. On warming to 33 °C, the gas exerts a pressure of 760.0 mm Hg. What is the volume of the flask in milliliters
Distinguish between the kinetics of a reaction and its process towards equilibrium. (Compare/contrast kinetics and equilibrium.)
polonium-218 is an alpha emitter with a half-life of 3.0 minutes. if a sample contains 55 mg of po-218 atomic mass
A quantity of CO gas occupies a volume of 0.34L at 1.9atm and 309K. The pressure of the gas is lowered and its temperature is raised until its volume is 2.0L . Find the density of CO under the new conditions.
How many grams of sodium hydrogen phosphate and sodium dihydrogen phosphate are needed to make 300 mL of a 0.12 M phosphate buffer with a pH of 7.2
A solution of 2.40 grams of the unknown hydrocarbon dissolved in 26.7 grams of naphthalene is found to freeze initialy at 76.2 Degree Celsius. Caluculate the apparent milar mass of the unknown hydrocarbon on the basis of the freezing-point depress..
a proton in a linear accelerator has a de broglie wavelength of 128 pmwhat is the speed of the
the molar heat of combustion of methanol ch3oh is -757kjmol. if 2g of methanol is placed in bomb calorimeter with heat
What monomers make up the zylon polymer, and how is the monomer made in industrial quantities? Are alternative monomers ever used
a spherical balloon containing 5.035 mg of hydrogen gas in its standard state of aggregation behaving ideally is
Write the complete mechanism for the reaction of the above molecule with HCl. Used curved arrows to indicate the formation or breakage of covalent bonds, label all charges, and show each step separately.
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