Let’s consider a small randomized clinical trial designed to…
Let’s consider a small randomized clinical trial designed to compare the response of a continuous variable between patients randomized to one of two treatments, A or B, using a permuted block design with a block size of 2. That is, for each block of two patients, one receives treatment A and the other receives treatment B, with the order chosen at random. Why do most clinical trials avoid using permuted block randomization with such small block sizes?
Read DetailsHow many liters of CH₃OH gas are formed when 3.20 L of H₂ ga…
How many liters of CH₃OH gas are formed when 3.20 L of H₂ gas are completely reacted at STP according to the following chemical reaction? Remember 1 mol of an ideal gas has a volume of 22.4 L at STP CO(g) + 2 H₂(g) → CH₃OH(g)
Read DetailsThe boiling point of pure ethanol (C₂H₅OH, MM = 46.07 g/mol)…
The boiling point of pure ethanol (C₂H₅OH, MM = 46.07 g/mol) is 78.4 °C. A solution is made using 100.0 g of ethanol (the solvent) and 12.1 g of glucose (MM = 180.16 g/mol). What is the boiling point of this solution, in °C? (Kb of ethanol is 1.22 °C/m)
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