0
Seventy three trillion nine hundred fifty six billion eight hundred eighty eight million four hundred ninety one thousand two hundred sixty three PLUS six million three hundred thirty eight thousand five hundred ninety nine MULTIPLIED by pi, divided by the square root of 8,493, 439, 302, 293, 321
Still curious? Ask our experts.
Chat with our AI personalities
Ross
Blake
Rene
Add your answer:
Earn +20 pts
Which property of an ester can be used to check its purity before use as a food flavoring?
options (A) Boiling point (b) Colour (C) Smell (D) Solubility in water.
How can you tell a pure substance from a mature by its boiling point?
A pure substance will have a precise and constant boiling point, whereas a mixture will have a range of boiling points corresponding to its different components. By comparing the boiling point of a substance to its known literature value, you can determine if it is pure or impure.
What is the optical density value of ethanol?
The optical density value of ethanol varies depending on its concentration and the wavelength of light being measured. At a standard concentration of 1 mg/mL, ethanol has an optical density value of approximately 0.25 at a wavelength of 220 nm. This value increases with higher concentrations and shorter wavelengths.
Percent error of O in MgO?
To calculate the percent error of oxygen in magnesium oxide (MgO), you would compare the experimental value of oxygen in MgO to the theoretical value. The experimental value can be determined by chemical analysis, while the theoretical value can be calculated using the molecular formula of MgO. The percent error is calculated using the formula: (|Theoretical value - Experimental value| / Theoretical value) x 100%.
Define melting point and boiling point and write their values?
The melting point is the temperature at which a solid substance changes into a liquid state. The boiling point is the temperature at which a liquid substance changes into a gas state. The values of melting and boiling points vary widely depending on the substance; for water, the melting point is 0 degrees Celsius and the boiling point is 100 degrees Celsius at standard atmospheric pressure.
Which temperature scale has the highest value for the boiling point of water?
The Kelvin scale has the highest value for the boiling point of water, which is 373.15 K.
Why theoretical value of ethanol in distillation process is differ with experimental value?
Theoretical value in distillation is based on ideal conditions, assuming perfect separation and no losses. In reality, experimental values may differ due to factors like impurities in the ethanol, inefficient separation, temperature variations, or equipment limitations. These discrepancies are common in practical applications of distillation processes.
What value of temperature of melting point of ice and boiling point of waterpoint?
The melting point of water is 0 oC and the boiling point of water is 100 oC.
What Is The value of the boiling point of water on the Kelvin scale is the value of the boiling point of water on the Celsius scale?
Pure water at STP boils at 100 degrees Celsius, which is 373.15 Kelvin.
The boiling point of pure water is?
The boiling point of pure water is typically about 100 degrees Celsius. This value can vary based on factors such as pressure. Additionally, impurities in a sample of water can alter its boiling point.
What is naphtha's boiling point?
This value is very variable and specific foe each product.The boiling point is between 30 oC and 200 oC.
Why is it Advantageous solvent that has a large value for kfp?
A solvent with a large Kfp value indicates a higher boiling point elevation constant, which means it can dissolve more solute without significant change in boiling point. This can be advantageous for processes like crystallization or separation, where maintaining a stable boiling point is important.
What is the boiling point of F and C?
The boiling point of fluorine (F) is -188.12 degrees Celsius (-306.62 F). The boiling point of carbon (C) in the form of a diamond is about 4027 degrees Celsius (7281 F). This value will vary depending on how the carbon is formed.
How do you compute a percent error?
% error = |experimental value - theoretical value|/theoretical value * 100% It is the absolute value of the differe nce betwee n the experime ntal a nd theoretical values divided by the theoretical value multiplied by 100%.
Which property of an ester can be used to check its purity before use as a food flavoring?
options (A) Boiling point (b) Colour (C) Smell (D) Solubility in water.
What is the boiling point of a 2.47 molal solution of napthalene in benzenethe boiling point of benzene is 80.1?
To determine the boiling-point elevation of the solution, we need to use the formula: ΔTb = iKbm, where ΔTb is the boiling point elevation, i is the van't Hoff factor (for napthalene, i = 1 because it doesn't dissociate), Kb is the ebullioscopic constant of the solvent (benzene), and m is the molality of the solution (2.47 mol/kg). Plug in the values and solve for ΔTb. Add this value to the boiling point of benzene (80.1°C) to find the boiling point of the solution.
How do you show percent error?
Percent error = (actual value - theoretical value) / theoretical value * 100%
