Chemistry, 07.10.2020 14:01 wolfking800
Information: Adding and Subtracting Using Scientific Notation
Whenever you add or subtract two numbers in scientific notation, you must make sure that they have the same
exponents. Your answer will then have the same exponent as the numbers you add or subtract. Here are some
examples. Make sure you understand each step:
Answers: 3
Another question on Chemistry
Chemistry, 22.06.2019 14:00
How many absorptions would you expect to observe in the 13c nmr spectra of the following molecules? a) 3-chloropentane b) cis-4-methyl-2-pentene
Answers: 2
Chemistry, 22.06.2019 20:00
Phosphoric acid is a triprotic acid ( =6.9×10−3 , =6.2×10−8 , and =4.8×10−13 ). to find the ph of a buffer composed of h2po−4(aq) and hpo2−4(aq) , which p value should be used in the henderson–hasselbalch equation? p k a1 = 2.16 p k a2 = 7.21 p k a3 = 12.32 calculate the ph of a buffer solution obtained by dissolving 18.0 18.0 g of kh2po4(s) kh 2 po 4 ( s ) and 33.0 33.0 g of na2hpo4(s) na 2 hpo 4 ( s ) in water and then diluting to 1.00 l.
Answers: 3
Chemistry, 22.06.2019 20:00
Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
Answers: 1
Chemistry, 23.06.2019 08:00
Determine the number of moles of air present in 1.35 l at 750 torr and 17.0°c. which equation should you use? n=pv/rt what is the number of moles present? ⇒ 0.056 mol a sample of n2 gas occupying 800.0 ml at 20.0°c is chilled on ice to 0.00°c. if the pressure also drops from 1.50 atm to 1.20 atm, what is the final volume of the gas? which equation should you use? v2= p1v1t2/p2t1 what is the final volume of the gas? ⇒ 932 ml these are the answers
Answers: 1
You know the right answer?
Information: Adding and Subtracting Using Scientific Notation
Whenever you add or subtract two numb...
Questions
Mathematics, 28.04.2021 06:30
History, 28.04.2021 06:30
English, 28.04.2021 06:30
Mathematics, 28.04.2021 06:30
Mathematics, 28.04.2021 06:30
Computers and Technology, 28.04.2021 06:30
Social Studies, 28.04.2021 06:30
English, 28.04.2021 06:40
Mathematics, 28.04.2021 06:40
English, 28.04.2021 06:40
Mathematics, 28.04.2021 06:40
Biology, 28.04.2021 06:40
