Chemistry, 27.06.2019 10:00 jonathanmenosky11
Avogadro’s number is a constant that scientists count atoms and molecules. it is approximately equal to 602,200,000,000,000,000,000,000. how is this number expressed in scientific notation? a. b. c. 6.02/1023 d. 6.02 × 1023 e. 6.02 × 10-23
Answers: 1
Chemistry, 21.06.2019 16:30, KieraKimball
10-14. (a) when 100.0 ml of weak acid ha were titrated with 0.093 81 m naoh, 27.63 ml were required to reach the equivalence point. find the molarity of ha. (b) what is the formal concentration of a- at the equivalence point? (c) the ph at the equivalence point was 10.99. find pk. for ha. (d) what was the ph when only 19.47 ml of naoh had been added?
Answers: 1
Chemistry, 21.06.2019 21:30, gatorr2010
An alcohol thermometer makes use of alcohol's changing in order to measure temperature. as the temperature goes up, the alcohol contained in the thermometer increases in volume, filling more of the thermometer's tube.
Answers: 3
Chemistry, 22.06.2019 14:00, cheyennemitchel238
Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *
Answers: 2
Avogadro’s number is a constant that scientists count atoms and molecules. it is approximately equa...
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