5ml of the 1000 ppm solution in 95ml distilled water gives a 500ppm solution
if it is water 1000 ppm = 1 mg/ml
Even a single drop of water will dilute 28 ppm of cyanide. Not by much, perhaps, but the question does not specify dilution to what degree.
PPM is an abbreviation for parts per million. If you have 1000ppm, then you have 1000 parts "A" per every million parts of your mixture. Therefore, the substance you are measuring is .1% part "A."
To make a 500 dilution, add 1 part of the substance you are diluting to 499 parts of water. For example, if you have 1 mL of the substance, you would add 499 mL of water to make a total volume of 500 mL for the dilution.
4ml/1000 = approx 4000 ppm, depending on the final volume after adding 4ml to 1000 ml water
dilute it 1 in 5000. likely best done with a serial or step dilution
if ppm means part per million, 1000 ppm = 1000 p 1000000 = 1 p 1000 = 0.1%
Make a 1 to 100 dilution of the original 1000 ppm solution. That is take 1 ml and dilute to 100 ml, or take 10 ml and dilute to 1000 ml. This will give you a 10 ppm solution.
Preparation of PPM level standards of ethanol in waterUse the absolute alcohol to prepare the stock solutions of known concentration say for example: 100 ml of 1 g/L of ethanol solution1 g/L is equal to 1000 mg/L which is 1000 ppm. Otherwise the concentration of the 100 ml stock solution is 1000 ppm.Next step: Perform serial dilution procedure to prepare the required ppm level of ethanol standards. For performing the serial dilution, u have to convert the weight of ethanol into volume by dividing the weight by density of ethanol. Density of ethanol = 789 kg/cu.m or 789 g/L.
if it is water 1000 ppm = 1 mg/ml
no
500 ppm.
Chlorine concentration at 500 ppm hazards to health to wash dishes in
*1000
Yes.
Even a single drop of water will dilute 28 ppm of cyanide. Not by much, perhaps, but the question does not specify dilution to what degree.
Divide by 1000.