Ammonium molybdate is (NH4)2MoO4. Its molar mass is 148g/mol. A 0.5M solution will have half a mole per liter of water. Half a mole of ammonium molybdate is 74g, so you would measure out 74g of it, and dissolve it in a liter of water.
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To prepare 0.5M ammonium molybdate solution, dissolve the appropriate amount of ammonium molybdate tetrahydrate in deionized water and dilute to the desired volume. The molar mass of ammonium molybdate tetrahydrate is 284.95 g/mol, so to make a 0.5M solution, you would need to dissolve 14.25 g of the compound in water and dilute to 1 liter.
To make 0.1m of ammonium molybdate, you would need to dissolve the appropriate amount of ammonium molybdate powder in a specific volume of water to achieve a molarity of 0.1M. The molecular weight of ammonium molybdate is 196.00 g/mol, so for 0.1M solution, you would dissolve 19.6g of ammonium molybdate in water to make a final volume of 1 liter.
No, ammonium molybdate is not a base. It is a chemical compound commonly used in analytical chemistry for the detection of phosphates and silicates.
The ammonium molybdate test is a qualitative analytical test used to detect the presence of phosphate ions in a sample. It involves adding ammonium molybdate reagent to the sample, resulting in the formation of a yellow precipitate if phosphate ions are present. The intensity of the yellow color can provide an indication of the concentration of phosphate ions in the sample.
To prepare a 0.5M glutaraldehyde solution, you would need to dilute a concentrated glutaraldehyde stock solution with the appropriate volume of water or buffer solution. Calculate the volume of stock solution needed based on the desired final volume and concentration, then dilute with the solvent. Finally, mix the solution thoroughly to ensure uniform distribution. Remember to follow safety protocols when working with glutaraldehyde, as it is a hazardous chemical.
Ammonium molybdate is used in the test for phosphorus because it forms a yellow complex with phosphorus, which allows for the colorimetric determination of phosphorus levels. This reaction is commonly used in spectrophotometric methods to quantify phosphorus in various samples.