Video Transcript

this video, we're gonna walk over how to transform Grams come moles. With sick of ours problem. We're going to say that we have 77.4 grams calcium. We understand that calcium has actually an atomic mass of 40.78 begin our equation. We understand that we have 77.4 grams of calcium and we should multiply it by other to remove grams and get two moles. Because we have an atomic mass of 40.78 we know that 40.78 moles of calcium, grams of calcium same to one mole the calcium. Therefore, we will play one mole that calcium end 40.78 grams by 77.4 grams to obtain mold. We know this since grams the calcium on the ideal side crossed the end grams the calcium on last night. We're left through moles. Using simple multiplication, we uncover that 77.4 grams of calcium sequel toe 1.93 moles




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Intro come Chem - development

Chemistry is the science of matter, especially its chemistry reactions, but additionally its composition, structure and also properties. Chemistry deals with atoms and their interaction with other atoms, and specifically with the nature of chemistry bonds. Chemistry also involves knowledge the properties and interactions of individual atoms and molecules for usage in larger-scale applications.


Classification and also Properties of issue

In chemistry and also physics, issue is any substance that has actually mass and also takes up room by having actually volume. All everyday objects that deserve to be touched are at some point composed that atoms, i m sorry are comprised of interacting subatomic particles, and also in everyday and also scientific usage, "matter" generally contains atoms and also anything comprised of them, and any particles and objects the act as if they have actually both rest mass and volume. But it does not incorporate massless particles such together photons, or other energy phenomena or waves such as light or sound. Matter exists in various states (known together phases) the are identified by assorted physical properties, such together state that matter, phase, shape, and density. The Standard design of fragment physics and the general theory of relativity describe basic particles and also the an essential forces acting between them that manage the structure and also dynamics that matter.