Chemistry, 22.01.2020 20:31, cailinhannon4828
In order to determine if two sets of data are significantly from each other, standard deviations are compared via f-test, and means are compared via t-test. the following data gave the recovery of bromide from spiked samples of vegetable matter, measured by using a gas-liquid chromatographic method. the same amount of potassium bromide was added to each specimen. does the sample matrix interfere in the precision of the method? does the sample matrix interfere in the recoveries? the following percentage recoveries were obtained in a comparison between a new method and the official method of determining oxyphenbutazone. does the mean result obtained by the two methods differ significantly?
Answers: 1
Chemistry, 22.06.2019 02:10, vapelordcarl69
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=–7061 kj mol−1.)
Answers: 3
Chemistry, 22.06.2019 04:30, terrancebest
Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat
Answers: 2
Chemistry, 22.06.2019 13:10, bartonamber4042
Select the correct answer a modure consists of glucose and water. what is the percent composition of glucose in the mixture if it contains 1.3 moles of glucose (cho total mass of the mature is 276 grams? ) and the a 1775
Answers: 1
In order to determine if two sets of data are significantly from each other, standard deviations are...
Social Studies, 29.12.2019 18:31
Chemistry, 29.12.2019 18:31