Step by step video & image solution for What is the role of reduced copper gauze in the estimation of nitrogen by Duma's method ? by Chemistry experts to help you in doubts & scoring excellent marks in Class 11 exams.Updated on:21/07/2023 ...
Given a percent yield of 45.0% for the reaction: H_2 + Cl_2 to 2 HCl(g). How many moles of HCl gas are produced, if 15.5 L of Cl_2 at STP and excess H_2 are reacted? What mass of hydrogen is produced when 192g of magnesium is reacted with hydrochloric acid? Mg ...
The Brønsted-Lowry definition of acidity is based on the transfer of protons from a Brønsted acid to another molecule (usually water). A weak acid, such as acetic acid, acts as a Brønsted-Lowry acid according to the chemical equation: {eq}\rm CH_3COOH(aq) + H_2O(l) \right...
this incredible engine of innovation can be harmful if it isn't properly regulated. While it's great for people in the United States or Canada to have access to inexpensive cotton products, this benefit is reduced if cotton farmers in China or India don't receive fair compensation that promot...
C. They're inconsiderate of others. D. They're careful with their words. 2.写作意图推断: 揣测作者的写作意图和写作手法。作者一般不直接陈述自己的意图,而是通过文章所提供的事实,客观地使读者信服某种想法或观点。主要设题方式有: What is the main purpose of the author writing the text? The ...
What volume of a 2.50 M CH3OH solution is needed to provide 0.210 moles of CH3OH? Number of Mole: In chemistry, mole is represented as a standard unit. This standard unit generally shows the amount of a chemical. It can be calculated using the molar concentration and...
A thermal profile is a graphical representation of the temperature changes a PCB undergoes during a conveyor-based heating process like solder reflow orwave soldering. This process is carried out using a thermal profiling system. Key components of a thermal profiling system: ...
Wegovy is also approved for chronic weight management in pediatric patients aged 12 years and older. In studies, a 16.1% decrease in body mass index (BMI) in children 12 years of age and older was demonstrated. Approval for Wegovy in children was supported by the 68-week Phase 3a STEP ...
A chemical unit of concentration of solutions is molarity, defined as the number of moles of solute contained in a liter of solution. The formula for calculating molarity is: M=nV Answer and Explanation: Substance: C12H22O11 Mass: 4.27 g. Volume...
What makes the chemistry of carbon compounds so unique that an entire, major branch of chemistry is dedicated to it? What causes a substance to have a low boiling point? Explain why HF and HCl cannot be used to cleave ethers in an sn^2 reaction? Expla...