A student takes a sample of KOH solution and dilutes it to a total of 487.59 mL. If the diluted solution is 1.51 M KOH and its original concentration was 2.53 M, what was the volume of the original sample?

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°c 2 atm pa