Acompound has the empirical formula chcl. a 256ml flask, at 373 k and 750. torr, contains 0.800 g of the gaseous compound. give the molecular formula.

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)

Which of the following units is not an official si unit

Complete each row of the table below by filling in the missing prefix or missing exponent.