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Which intermolecular force or bond is responsible for the high boiling point of NH3 relative to PH3 and AsH3?
a. hydrogen bonding
b. dipole/induced dipole force
c. induced dipole/induced dipole force
d. covalent bonding
e. dipole-dipole force
How can you distinguish chemically between starch and three other carbohydrates (sucrose, glucose, & lactose)? What would you expect to observe when adding one drop of iodine-potassium iodine reagent to each of the four carbohydrates?
Find the expected freezing point of a water solution that contains 268 g of aluminum nitrate, Al(NO3)3, in 8.50 kg of water.
If I have 7.0 moles of gas at a pressure of 0.10 atm and at a temperature of 50.1 degrees C in a balloon, what is the volume of the balloon? (Round to one decimal place.)
How many moles of KHP were weighed out? How many moles of NaOH were required to neutralize the KHP that was weighed out?
Light with a frequency of 7.11 x 10 -14 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light? Answer in units of nm.
Assume that an air conditioner consumes 1.50 X 103 W of electrical power, and that it can be idealized as a reversible Carnot refrigerator. If the coefficient of performance of this device is 2.50, how much heat can be extracted from the house in ..
calculate the pH of 50 ml of .15 M HCHO2 with 75 mL of .13 M NaCHO2
Explain Solid State Chemistry, 1) Write the balanced chemical equation for Fe2O3+2Al?2Fe+Al2O3 using the lowest possible whole number coefficients.
Calculate the mass of one oxygen atom and determine the number of oxygen atoms in a 10.00g sample of the element.
A gas occupies a volume of 380. ml at 135 °C? At what temperature will the volume of the gas be equal to 535 ml?
Deuterium oxide (D2O, where D is deuterium, the hydrogen-2 isotope) has an ion-product constant, Kw, of 8.9 x 10^-16 at 20 *C (degrees Celsius). Calculate [D+] and [OD-] for pure (neutral) D2O at this temperature.
The dioxouranium(vi) cation (urany1,uo2)can be seperated and identified using the procedure described in the experiment. the spot test results for this cation with the with the following test reagents are k4fe(cn)6 red-brown
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