Category: Physics

Is benzaldehyde soluble in NaOH? 2) aromatic carbonyl compounds like benzaldehyde and acetophenone are NOT soluble in H2O, 5%NaOH, 5% NaHCO3, 5% HCl. But they are soluble in highly concentrated H2SO4. Why is NaOH soluble in water? When sodium hydroxide (NaOH) dissolves in water, it separates into positively – charged sodium ions (cations) and negatively […]

What could go wrong in a titration experiment? Several factors can cause errors in titration findings, including misreading volumes, mistaken concentration values or faulty technique. Care must be taken as the solution of the known concentration is introduced into a specific volume of the unknown through laboratory glassware such as a burette or pipette. Why […]

Why is U 238 used for dating rocks? Uranium 238 is only found in igneous or volcanic rocks. So no fossils can be dated directly using U 238. Because of the huge differences in the half lives of Carbon 14 and Uranium238 they cannot be used together. Carbon 14 can only be used to date […]

How fast do Olympic swimmers go? Olympic gold-medalist Michael Phelps can swim the 200-meter freestyle in approximately 1.42 minutes, which equates to a speed of about 4.7 mph (miles per hour) or 7.6 km/h (kilometers per hour). How fast can Michael Phelps swim a mile? When he broke the world record in the 100-meter butterfly […]

Why do egrets hang out with cows? They are called “Cattle” Egrets because they are attracted to the insects that the big animals stir up as they move about the fields. And if there are no cattle to be found, the birds will look for something else to stir things up. They are just as […]

How I increase my IQ naturally? Here are some activities you can do to improve various areas of your intelligence, from reasoning and planning to problem-solving and more. Memory activities. Executive control activities. Visuospatial reasoning activities. Relational skills. Musical instruments. New languages. Frequent reading. Continued education. Do musicians have a higher IQ? Study says learning […]

Is the both of you correct? Executive summary: “both of you” is the normal, grammatical expression; whereas, “you both” is used for extra emphasis. Both are grammatically correct. This one is hard because the word “both” does not exist in some communities. How do I make a question with which? We use which in questions […]

Why do batteries eventually stop converting and producing energy? As the chemical electrolyte completely transforms itself, the battery eventually loses the ability to generate new ions that will run the gauntlet of the circuit it makes with your electronic device. No pre-transformation chemical electrolyte, no ions, no electrons, no battery power. Why do batteries die […]

What are the 11 basic colors? English, for example, has the full set of 11 basic colors: black, white, red, green, yellow, blue, pink, gray, brown, orange and purple. In a 1999 survey by linguists Paul Kay and Luisa Maffi, languages were roughly equally distributed between the basic color categories that they tracked. What are […]

What are examples of the 5 components of fitness? A: The five components of physical fitness are cardiovascular endurance, muscular strength, muscular endurance, flexibility and body composition, according to Fit Day. How do you test muscular strength? ‘ The most widely used exercises for upper and lower body muscular strength testing are the bench press […]