Answer: 2.744 x 1025 molecules
The most accurate means of determining the purity of a substance is through the use of analytical methods. These methods, widely used in different industries, mostly involve chemical analysis, which can pinpoint the presence, identity and amount of impurities in the sample. The most simple chemical methods include gravimetry and titration. There are also the more advanced light-based or spectroscopic methods, such as UV-VIS spectroscopy, nuclear magnetic resonance and infrared spectroscopy. Chromatographic methods, such as gas chromatography and liquid chromatography, can also be used. Other methods used in testing the purity include mass spectroscopy, capillary electrophoresis, optical rotation and particle size analysis.
-basically nerdy talk for using machines controlling chemicals or other atoms to pinpoint any impurities
<h3>
<u>Two </u><u>device</u><u> </u><u>that </u><u>are </u><u>using</u><u> </u><u>spinning</u></h3>
→ <u>Takli</u>
- Takli is a small support style spindle. Takli is a perfect tool for spinning cotton, and this are used too to spin fibers, cotton, cashmere, and silk etc. Takli is known as handspindle. And it is the simplest device for spinning.
→ <u>Charkha</u>
- Charkha is a device for spinning thread or yarn from fibers etc. This are known as spinning wheel.
<h2>HAVE A NICE DAY!</h2>
Answer:
The right to refuse work that could affect their health and safety and that of others.
Light cannot pass though matter BUT, matter is technically atoms, which are mostly space with a few, moving objects.
