Learn about Amedeo Avogadro and his funky gases, Italian Revolutions, and starry-nosed moles.
Charles’s Law: History and Work Problem
And we're back for the second installment of our gas laws series - Charles' Law. If you need to refresh on the other gas laws in this series you can check out our post on Boyles' Law, Avogadros' Law, and the Ideal Gas Law. Let's review what a gas is: a gas a is a … Continue reading Charles’s Law: History and Work Problem
Boyle’s Law: History and Work Problem
The two variables we're looking at today are pressure and volume, whose gas relationship was discovered during the Renaissance.
Work Problem: Light and Photons
What we often refer to as 'light' is a narrow portion of a broad spectrum of electromagnetic radiation. This spectrum stretches from radio waves with a wavelength of 10³ m to gamma rays with a wavelength of 10⁻¹² m. We work mainly with light in the visible spectrum in this lesson, but the fundamentals learned here can be applied to any portion of the EM spectrum.
Profile: Ada E. Yonath
Born 22 June 1939 in the Guela quarter in Jerusalem, Ada Yonath is the oldest daughter of Hillel and Esther Livshitz. At that time, the area of Palestine was under British control. World War I left Palestine and other territories of the freshly defeated Ottoman Empire in limbo. The 1920 document issued by the League … Continue reading Profile: Ada E. Yonath
Profile: Dorothy Crowfoot Hodgkin
Dorothy Crowfoot Hodgkin (1910 - 1994) British chemist known for mapping the structure of insulin, Vitamin B12, and other notable biochemistry molecules.
Profile: Iréne Joliot-Curie
Iréne Curie was born on September 12, 1897 in Paris, France to Marie and Pierre Curie. She was the oldest of two, her younger sister Eve being born in 1904. Iréne grew up to be a bright, smart, and quick young woman. Marie and Pierre would be awarded the 1903 Nobel prize in physics alongside Henri … Continue reading Profile: Iréne Joliot-Curie
Profile: Uma Chowdhry
Uma Chowdhry (Indian-American b. 1947): Uma Chowdhry was born in Mumbai, India, in 1947. She earned her Bachelors in physics from the Indian Institute of Science, Mumbai University before moving to the United States. Initially seeking to study nuclear physics, Chowdhry was soon hooked on chemistry thanks to her future husband Vinay Chowdhry. After graduating … Continue reading Profile: Uma Chowdhry
Practice Problem: Gibbs Free Energy
Given Question: The reaction given above is accompanied by the Enthalpy of the reaction (H) and the entropy (S). Determine the change in Gibbs Free energy (G) and if the reaction is spontaneous or not. If the reaction isn't spontaneous, calculate the temperature in which it will be. Start off by listing what … Continue reading Practice Problem: Gibbs Free Energy
Interview with James Nowick- Researcher, Educator, Advocate (A Profile Piece)
HeychemTutor got a chance to sit down with esteemed professor and advocate Dr. James Nowick, who is currently based out of the University of California-Irvine. We sat down to discuss chemistry, LGBTQIA+ rights, and advocacy. This was a project Heychem set in celebration of June 2017 Pride month. ~~Interview Start~~ HeyChem: How did you first … Continue reading Interview with James Nowick- Researcher, Educator, Advocate (A Profile Piece)