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How much methanol needed to make 10 ppm calibration gas in 100ml nitrogen?
To prepare a 10 ppm (parts per million) calibration gas in 100 mL of nitrogen, you need to calculate the amount of methanol required. Since 10 ppm means 10 mg of methanol per liter of gas, for 100 mL (0.1 L), you would need 1 mg of methanol. To achieve this, you can directly weigh out 1 mg of methanol and dilute it in the 100 mL of nitrogen.
Is methanol soluble with water cyclohexane and alcohol?
Yes, methanol miscible.
What molecule has the highest boiling point methane chloromethane or methanol?
Methanol has the highest boiling point among methane, chloromethane, and methanol. This is because methanol has stronger intermolecular forces (hydrogen bonding) compared to methane (only dispersion forces) and chloromethane (dipole-dipole forces).
What is the mass (in grams) of methanol of 9.09x1024 molecules of methanol?
The mass is 483,62 g.
What is the percent by volume of 25 ml of methanol in 75 ml of water?
With 25ml methanol and 75ml water, there is 100ml in total. So there is 25/100 = 25% by volume methanol.
How should you prepare dried beans?
Stir fry
How do you prepare formic acid from methanol?
Formic acid can be prepared from methanol through the catalytic oxidation using a suitable catalyst such as platinum or palladium. The process involves reacting methanol with oxygen in the presence of the catalyst to yield formic acid. The reaction typically requires controlled conditions of temperature and pressure.
How do prepare 0.01M methanolic hydrochloric?
To prepare a 0.01M methanolic hydrochloric acid solution, mix the appropriate volume of concentrated hydrochloric acid with methanol to achieve the desired concentration. For example, to make 1L of 0.01M solution, dilute 8.9mL of concentrated hydrochloric acid (37%) with methanol and then dilute to the final volume with methanol. Make sure to handle concentrated hydrochloric acid with caution and wear appropriate protective equipment.
How do you prepare 0.1molar methanolic hcl?
To prepare a 0.1 molar methanolic HCl solution, you would first calculate the amount of hydrochloric acid needed to achieve a concentration of 0.1 moles in 1 liter of methanol. You would then measure out the calculated amount of hydrochloric acid and add it to the methanol in a volumetric flask. Finally, you would top up the flask with methanol to make a final volume of 1 liter and mix well.
Difference between methanol and ethanol?
Methanol is CH3OH, ethanol is CH3CH2OH. Both are alcohols, ethanol has one carbon more (or a CH2 group more) and is less polar than methanol. Also ethanol has higher boiling point than methanol.
How do you prepare dpph radical solution?
To prepare a DPPH radical solution, dissolve DPPH powder in a solvent like methanol or ethanol to a concentration of around 0.1-0.2 mM. Mix well until the solution is completely dissolved. The solution can be stored in the dark and at low temperature to protect it from light.
How do you get a 2.5 N NaOH solution in methanol?
To prepare a 2.5 N NaOH solution in methanol, you would first calculate the amount of NaOH needed based on its molar mass and the desired concentration. Then, dissolve this amount of NaOH in the appropriate volume of methanol to make the 2.5 N solution. Be sure to wear appropriate safety gear and follow proper handling procedures when working with NaOH.
Is methanol an acid?
Yes, methanol is a weak acid.
How do you prepare 30 percent of methanolic KOH solution?
To prepare a 30% methanolic KOH solution, you would mix 30g of KOH with enough methanol to make a total solution volume of 100mL. This would result in a solution where 30% of the total weight comes from KOH. Be cautious when handling KOH as it is a caustic substance and should be handled with appropriate precautions.
What is the solubility of hexane in methanol?
The solubility of hexane in methanol is low because hexane is a nonpolar molecule and methanol is a polar solvent. This means that hexane does not mix well with methanol.
How do you prepare 0.002N methanolic KOH?
Molar mass KOH = 56g/mol and 0.002 N KOH = 0.002 moles/L0.002 moles/L x 56 g/mole = 0.112 g/LDissolve 0.113 grams KOH in 1 liter or methanol, or any fraction/multiple thereof. For example, dissolve 0.0113 g KOH in 100 mls or dissolve 0.226 g in 2 liters of methanol.
How does methanol react with water?
Methanol is miscible with water, which means it can mix in any proportion. When methanol is added to water, it forms a homogenous solution due to hydrogen bonding interactions between the methanol and water molecules. This allows methanol to dissolve easily in water.
