CHEM 1110: Elementary Chemistry

Understand the fundamental distinctions between pure substances and mixtures. Unpack the definitions and real-world examples of elements, compounds, homogeneous, and heterogeneous mixtures.

Discover how to calculate the number of moles of hydrogen in different chemical samples, including H?O, NH?, N?H?, and C??H??.

Discover the balanced chemical equation for photosynthesis, where CO? and H?O produce glucose and O?. Uncover the step-by-step breakdown of the equation, ensuring atom balance. Grasp a clear understanding of this vital process in plant biology.

This instructional video guides you through the process of determining the number of molecules in a given sample. It illustrates the conversion from grams to moles using the molar mass of the substance and then to molecules using Avogadro's number, providing a practical example with ethane (C?H?) to calculate approximately 6.67 x 10²¹ molecules in a 0.334 g sample.

Classify substances into various categories: element compound homogeneous mixture and heterogeneous mixture. This video breaks down the fundamental distinctions between pure substances and mixtures illustrating with real-world examples like urine pure water a Snickers™ bar and soil. A concise guide for understanding the essence of material classification in chemistry.

Join us in this video as we dive into the intricacies of calculating the net ATP yield from oleic acid (18:1 ??). We'll provide a step-by-step guide and offer helpful hints to ensure an accurate calculation, including a critical step that bypasses acyl-CoA dehydrogenase.