https://padlet.com/karenqi/ay6tqqf1vx3lucpr en-us 2023-09-04 00:52:03 UTC 2023-09-06 04:33:15 UTC hello@padlet.com karenqi https://padlet.com/karenqi/ay6tqqf1vx3lucpr/wish/2684826907 1. Richter scale is used to measure earthquake intensity, the amount of energy released and also compared the size of earthquakes. Decibel scale is used to measure sound intensity, use a nonlinear scale to describe the sound wave.
https://www.britannica.com/science/Richter-scale
https://www.britannica.com/science/decibel

2. pH is a measurement of chemicals acidity, range goes from 0-14 and has a neutral level in 7. pH is measure in logarithmic units with the base 10. And the pH value is counted as the negative hydrogen ion concentration. Therefore, when the pH value of a solution is 7 the hydrogen ion concentration is 10^1.]]> 2023-09-05 12:46:50 UTC https://padlet.com/karenqi/ay6tqqf1vx3lucpr/wish/2684826907 karenqi https://padlet.com/karenqi/ay6tqqf1vx3lucpr/wish/2686045160 2023-09-06 04:33:15 UTC https://padlet.com/karenqi/ay6tqqf1vx3lucpr/wish/2686045160