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A sample of a gas has an initial volume of 34.8 L and an initial temperature of −67°C. What must be the temperature (in Celsius( of the gas for its volume to be 25.0 L?

Place the following substances in order of increasing boiling point.  Consider polarity, chain length and intermolecular forces as part of your placement. CCl4 (carbon tetrachloride), H2O (water), CH2Cl2 (methylene chloride), CH4  methane), HOCH2CH2OH (ethylene glycol)

Which gas will mix/diffuse with air the fastest?

Which of the following are the pressures and temperatures at STP conditions?

music 9.mp4

Match the following composers and their Title

music 3.mp4

True or false: The U.S. Marine Band is also known as “The President’s Own.”

If a piece of music is in 4/4 time signature (4 beats per bar), has 8 bars, and the tempo is Quarter Note = 120 (120 beats per minute). Pleasecalculate the total duration of this piece. [Using the formula Tempo (T) = Total Beats (D) / Time in Seconds (S).]

Sickle-cell anemia is a genetic disease involving a single gene. Normal homozygous (SS) have normal blood, these individuals become very ill from the malaria parasite and many die. Individuals homozygous for the sickle-cell trait (ss) individuals often die because of the genetic defect. Individuals with the heterozygous condition (Ss) have some sickling of red blood cells, but generally not enough to cause mortality. In addition, malaria cannot survive well within these “partially defective” red blood cells thus, heterozygotes tend to survive.  If 9% of an African population is born with a severe form of sickle-cell anemia, what proportion of the population is likely to become very ill from the malaria parasite?