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A sample of helium gas is at a temperature of 100 K. If both the volume and pressure each double what is the final kelvin temperature?
The vapor pressure of dichloromethane at 0C is 134mmHg. The normal boiling point of dichloromethane is 40C. Calculate its molar heat of vaporization.
ond weighs 44.0 carats. Determine the volume occupied by the diamond, given that its density is 3.5 g/cm3 at 20°C, and that 1 carat = 0.200 g.
A solid mixture consists of 35.7 of KNO3 (potassium nitrate) and 6.3g of K2SO4 (potassium sulfate). The mixture is added to 130. of water. If the solution described in the introduction is cooled to 0
Using the Grubbs test, decide wheter the value 216 would be rejected from the set of results 192, 216, 202, 195 and 204. G ( 95% confidence) : 1.463, 1.672, 1.822, 1.938, 2.032
A 5.0 g sample of a hydrate of BaCl2 was heated, and only 4.3 g of the anhydrous salt remained. What percentage of water was in the hydrate?
Describe the impact of time of exposure on the amount of radiation you receive. If you are exposed for three times as long do you feel 1/3 the amount of radiation, three times the amount of radiation
What is the volume of sulfur dioxide (SO2 gas), formed when 2 moles of carbon disulfide (CS2) are burned ?
Silver has two naturally-occurring isotopes with masses of 106.905092 amu and 108.904756 amu. What are the percent abundances of each isotope, respectively?
A student is presented with a sample of an unknown substance and asked to classify the substance as organic or inorganic
Examples are BrCl, IBr, BrF, and ClF. Which compound is expected to have the highest boiling point aqt any given pressure? Please explain why
Draw a two-dimensional conformational energy landscape (free energy on y-axis, conformational coordinate on x-axis) to show how a protein may become kinetically (not thermodynamically) ‘trapped' in a misfolded conformation.
Calculate the heat evolved from a mixture of 14.6 L of sulfur dioxide at 1 atm and 294 K and 15 g of oxygen if the following reaction occurs: 2 SO2(g) + O2(g) ?? 2 SO3(g) ?H? = ?198 kJ
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