Search
- Filter Results
- Location
- Classification
- Include attachments
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/10%3A_The_Mole/10.10%3A_Percent_CompositionThis page explains how to calculate the percent composition of compounds using mass data and chemical formulas, highlighting the mass percentage of each element. It provides examples, such as peanut b...This page explains how to calculate the percent composition of compounds using mass data and chemical formulas, highlighting the mass percentage of each element. It provides examples, such as peanut butter and dichlorine heptoxide, to demonstrate the calculation method. Additionally, it discusses the conservation of stained glass and techniques for preserving historical artifacts.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/25%3A_Organic_Chemistry/25.14%3A_AminesThis page discusses melatonin, a brain-produced amine that regulates the sleep-wake cycle and is affected by sunlight, causing winter sleep issues. Melatonin supplements can help. Additionally, it exp...This page discusses melatonin, a brain-produced amine that regulates the sleep-wake cycle and is affected by sunlight, causing winter sleep issues. Melatonin supplements can help. Additionally, it explains that amines are ammonia derivatives classified by nitrogen bonding and are weak bases with varying properties. They are important in biological processes and have industrial uses, such as in dyes and pharmaceuticals.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/01%3A_Introduction_to_Chemistry/1.10%3A_The_EnvironmentThis page highlights the environmental impacts of waste disposal, focusing on lead contamination and its detrimental effects, particularly on children's health. It notes the historical reckless dispos...This page highlights the environmental impacts of waste disposal, focusing on lead contamination and its detrimental effects, particularly on children's health. It notes the historical reckless disposal of waste and the continued presence of lead in recycled car batteries despite bans in other products. The text underscores the importance of chemists in understanding lead's impact, creating safer alternatives, and promoting environmental protection.
- https://chem.libretexts.org/Bookshelves/Introductory_Chemistry/Introductory_Chemistry_(CK-12)/15%3A_Water/15.07%3A_Electrolytes_and_NonelectrolytesThis page discusses the benefits and risks of jogging, particularly in hot conditions. It emphasizes the importance of electrolytes, which are crucial for bodily functions, and notes that loss of thes...This page discusses the benefits and risks of jogging, particularly in hot conditions. It emphasizes the importance of electrolytes, which are crucial for bodily functions, and notes that loss of these during exercise can lead to nausea and fatigue. Key electrolytes include calcium, sodium, potassium, and magnesium. The page recommends sports drinks as a means to replenish electrolytes and avoid health issues during exercise.
