Is kg/m 3 the same as g ml? The SI standard is really kg / m3. 1 kg/dm3 = 1 kg/L = 1000 g/1000 cm3 = 1 g/cm3 = 1 g/ml (water). Water as the reference with its highest density at 3.98 °C is ρ = 1 g/cm3. The correct SI unit is ρ = […]
Why is alkaline hydrolysis preferred?
Why is alkaline hydrolysis preferred? Hydrolysis using dilute alkali There are two big advantages of doing this rather than using a dilute acid. The reactions are one-way rather than reversible, and the products are easier to separate. Why is hydrolysis reversible? Hydrolysis is a reversible reaction, meaning that the alcohol and acid groups can react […]
What does current flow mean?
What does current flow mean? Current flow basically means the flow of electric charges with respect to time. In an electric circuit, when the electric charge is flowing in one direction, the current will flow in the opposite direction. From Ohm’s law, the current can be defined as the voltage through the circuit per unit […]
What is energy of activation for the enzymes?
What is energy of activation for the enzymes? Lesson Summary The activation energy is the energy required to start a reaction. Enzymes are proteins that bind to a molecule, or substrate, to modify it and lower the energy required to make it react. Why is it important that enzymes lower the activation energy? Enzymes are […]
What does a concave lens look like?
What is the difference between remote control and radio control?
What is the difference between remote control and radio control? There is a simple definition for both remote-controlled and radio-controlled. Essentially, a remote-controlled vehicle is operated from a distant or remote location outside of the vehicle. A radio-controlled vehicle is simply an unattached remote-controlled vehicle. How does a remote-controlled car work? Once the RC toy […]
What was on earth 3 billion years ago?
What was on earth 3 billion years ago? Around 3 billion years ago, Earth may have been covered in water – a proverbial “waterworld” – without any continents separating the oceans. How old is Adam according to the Bible? 930 years Who is Lucifer’s dad? Samael Who is God’s second son? Henri How many sons […]
Which detector is used in HPLC?
Which detector is used in HPLC? HPLC Detectors UV-Vis Detectors. The SPD-20A and SPD-20AV are general-purpose UV-Vis detectors offering an exceptional level of sensitivity and stability. Refractive Index Detector. Fluorescence Detectors. Evaporative Light Scattering Detector. Conductivity Detector. What should we do first before using the HPLC instrument? Before the freshly prepare mobile phase is pumped […]
What are the physical changes in middle adulthood?
What are the physical changes in middle adulthood? There are a few primary biological physical changes in midlife. There are changes in vision, hearing, more joint pain, and weight gain (Lachman, 2004). Vision is affected by age. As we age, the lens of the eye gets larger but the eye loses some of the flexibility […]