the aluminum cup inside your calorimeter weighs 41.55 g. you add 59.21 g of 1.0 m acetic acid solution and 50.03 g of 1.0 m sodium hydroxide solution to the calorimeter. both solutions have an initial temperature of 19.9 oc, and the final temperature after addition is 26.8 oc. what is the molar enthalpy of neutralization, in units of kj/mol?

Heights of men on a baseball team have a bell-shaped distribution with a mean of 177 cm and a standard deviation of 6 cm. using the empirical rule, what is the approximate percentage of the men between the following values? a. 159 cm and 195 cm b. 165 cm and 189 cm a. 89% of the men are between 159 cm and 195 cm. (round to one decimal place as needed.) b. 89% of the men are between 165 cm and 189 cm. (round to one decimal place as needed.)

Arecipe calls for 2 cups of flour to make a cake. you look in the stock room and see a bag of flour that has a tag that says this bag contains 25 cups of flour. how many complete cakes could you make from this bag of flour?

To safely control the traffic flow and protect workers near public roadways and moving construction equipment use you could use