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Calculate the enthalpy change, change of H, for the process in which 37.1 g of water is converted from liquid at 4.4 degrees C to vapor at 25.0 C.
water change in H=44 kJ/mol at 25 degrees C and s=4.18 j/(g*C) for H2O.
How many grams of ice at -20.6 C can be completely converted to liquid at 29.6 C if the available heat for this process is 4.26×10^3 kJ ?
For ice, use a specific heat of 2.01 J/(g*C) and change in H= 6.01 kJ/mol.
1.isobutene is formed by following radical polymerization process that follows chain transfer to monomer is the
of 2.60 cm^2.if solar radition is 1150 W/m^2, how many photons strike the leaf every second.
A 25.0-mL sample of 1.00 M NH3 is titrated with 0.15 M HCl. What is the pH of the solution after 15.00 mL of acid have been added to the ammonia solution? Kb = 1.8 × 10¯5
Determine the ionization constant of a 0.0070 aqueous ammonia solution with an OH- concentration of 3.46 x 10^-4 M.
Write the formula for each component in a buffer solution of acetic acid and it's salt. How would you prepare 20 mL of a solution having pH = 2.00 by dilution of 0.10 M HCL
Imagine you want to determine the binding constant for a reaction. You know you will need to generate data to calculate the binding constant.
Write the balanced chemical equation for the neutralization reaction that occurs when an aqueous solution of hydrochloric acid (HCl) is mixed with an aqueous solution of potassium hydroxide (KOH).
Assuming that N2 obeys the Van der Waal's equation, determine the Boyle temperature of 1 mol of N2 and determine the percent error in the answer knowing that the experimental value of the Boyle temperature
For each of the following species, draw its Lewis-dot structure. If the species exhibits resonance, draw all the resonance hybrids. For each species, tell its shape, bond angles, hybridization of the central atom, and whether it is polar or nonpola..
For the reaction SO3+H2O=H2SO4 calculate the percentage yield if 600 g of sulfur trioxide react with excess water to produce 475 g of sulfuric acid
An unknown sample (0.7844g) containing KHP is titrated to the equivalence point with 9.2mL of 0.0811M NaOH. How many moles of KHP are present
The simplest formula of a substance is found to be CH2O, and its approximate molar mass is found by experiment to be 93 g•mol-1. What is its exact molar mass?
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