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A solution is prepared by dissolving 4.21 g of a non-electrolyte in 50.0 g of water. If the boiling point raise by 0.203ºC, explain what is the molar mass of the solute? The boiling point elevation constant for water is 0.512 ºC/m.
The heat of fusion of sodium metal is 630 cal/mol. How much heat (in kilocalories) is required to melt 179 grams of sodium
A single cell has a radius of 15 um, a volume of 14.1 picoliter, and a mass of 15.5 nanograms. what is the density of this cell in g/mL
A 1.75L container contains 32.5 mol of Xe at 75oC. Compute the pressure of the gas (a) assuming ideal gas behavior also (b) using the Vander Waals equation. For Xe, a = 4.194 L2atm/mol2 and b = 0.05105 L/mol.
Assume that the octet rule is followed for the N atom when you draw your structure(s). Pick the correct statement from the choices below.
a. calculate the ph of a solution which is 0.50m acetic acid and 0.25m sodium acetate.b. what is the new ph of the
hydrogen peroxide undergoes a first-order decomposition to water and o2 in aqueous solution. the rate constant at 25
A metal was heat up in hot water and then put into a Styrofoam cup of water at room temperature. the specific heat was calculated.
What would happen if you increase the pH of this acidic solution by addition of a strong base such as KOH? b.) Write the balanced equation for the reaction (a.) and identify both the stronger acid and base and the weaker acid and base.
Calculate the pH at the equivalence point in titrating 0.110 M solutions of each of the following with 8.0×10-2 M NaOH.
what is the experimental value of Avogadro's number. dropper pipet calibration= 68 drops/ml number of drops of oleic acid in the monolayer=16 drops diameter of monolayer = 15.0 cm
For phenylanaline can be modeled as particle on a ring. Calculate the wavelength of the transition from ground state to the first excited state.
When the following reaction is balanced in basic solution using the lowest possible whole number coefficients, the coefficient of PbO2(s) will be: BrO3-(aq) + Pb(OH)42-(aq) --> Br-(aq) + PbO2(s)
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