A student transferred 30. mL of a 4.5 M HCl stock solution to a 250. mL volumetric flask and then
added water to the mark on the volumetric flask.
What is the molar concentration, M, of the dilute
solution?

What are the major products produced in the combustion of c10h22 under the following conditions? write balanced chemical equations for each. a. an excess of oxygen b. a slightly limited oxygen supply c. a very limited supply of oxygen d. the compound is burned in air

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

If you burn 46.6 g of hydrogen and produce 416 g of water, how much oxygen reacted