Solving Using PPM (Parts Per Million)
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Solving Using PPM (Parts Per Million)Questions
- What is PPM?
- How can PPM be calculated in chemistry?
- Why is PPM a useful measurement?
- Question #742ad
- Question #797aa
- H2S (g) concentrations of 660ppm is dangerous. (6) H2S generators continually release all of the gas they can every 15 minutes & the gas is never vented out of a room (vol 198,200L). How long will it take the H2S (g) concentration 2 reach dangerous level?
- How many grams to toothpaste to kill a rat? One of the leading toothpaste brands advertises Fluoride (NaF) at 1400ppm. And the MSDS for Sodium Fluoride says that 52mg/kg is enough to kill a rat. How would I calculate this?
- Question #12b01
- Question #76a8d
- How many grams of #NaCl# should be weighed to prepare 1 L of 20 ppm solution of #Na^+#?
- Calculate the mass of #KCl# that should be dissolved to form a 5 ppm #Cl^-# ion solution having a total volume of 20 #dm^3#?
- 4 mg of zinc found in 100g of oysters what is the ppm?
- How much would a dosage of 1g strontium chloride hexahydrate raise the PPM of strontium in a total water volume of 100L?
- Question #7ba62
- Question #8ff57
- A #"5 gallon"# volume of benzene is accidentally added to an aquifer whose volume is #3.79xx10^8*L#. If homogeneous mixing is assumed, what is the #"ppm concentration"# with respect to benzene?
- How do we measure the concentration of a solution in #"parts per million"#?
- A solution containing #25# #"ppm"# #KMnO_4# gives absorbance of #0.408# at a wavelength of #470# #nm# in a #1# #cm# path length. Calculate molar absorptivity and transmittance?
- Question #4e55d
- A 2400-gram sample of an aqueous solution contains 0.012 gram of #NH_3#. What is the concentration of #NH_3# in the solution, expressed as parts per million?
- If you have 7 molecules of #SO_2# gas in #2.617 * 10^5# molecules of air, what is the concentration of #SO_2# in ppm?
- What is the concentration of a solution, in parts per million, if 0.02 gram of #Na_3PO_4# is dissolved?
- Question #82dbf
- Question #50ff0
- Consider a 0.00050 molar solution of methanol, #"CH"_3"OH"#, in water. Express the concentration of methanol in parts per million?
- Question #9ecfa
- Question #4cfc0
- Convert 355mL of a solution containing 6.31 ppm CaCO3 to mmol?
- Question #a7737
- Question #31802
- How much energy, in joules, must be absorbed if all the #O_3# molecules in the sample of air are to dissociate? Assume that each photon absorbed causes one #O_3# molecule to dissociate, and that the wavelength of the radiation is 254 nm.
- If a solution is #1.1*"ppm"# with respect to calcium ion, what are #[Ca^(2+)]#, and #[Cl^-]# if the solution is prepared from calcium chloride?
- How do we determine molar concentrations from concentrations that are reported in #"ppm"#?
- Question #8b2b6
- Question #745c2
- A sample of 300.0 g of drinking water is found to contain 38 mg Pb. What this concentration in parts per million?
- If carbon dioxide expresses a #1*"ppm"# concentration in water, what is its concentration in #mol*L^-1#?
- Question #21b37
- Question #cd6f3
- I want to increase the NO3 concentration in a 40 Liters tank using Ca(NO3)2.4H2O. The concentration of the CaNO3 solution is 500g/L. How much solution do I need to add increase the concentration by 2ppm? Thanks for helping out!
- Question #a373a
- Question #95250
- Question #d42c0
- Question #a4c01
- Question #ab0ea
- Question #f4ab8
- Question #40a6a
- Question #17770
- An aqueous solution has a mass of #490# grams containing #8.5 xx 10^"-3"# gram of calcium ions. What is the concentration of calcium ions in this solution?
- Question #7e852
- A #300*lb# mass of a chemical is accidentally spilled into a dam whose volume is #1.362xx10^4*m^3#... What is the #"ppm"# concentration?
- #"1.50 mL"# of a #"0.0500-M"# solution of calcium chloride, #"CaCl"_2#, was diluted with water to a volume of #"10.0 L"#. What is the concentration of #"Cl"^(–)# ions in the diluted solution in ppm?
- Given a #6.174*g# mass of sodium sulfate that is dissolved in a #1*L# volume, what is the concentration in terms of #"parts per million"# with respect to sodium ion?
- Question #3a307
- If the concentration of #"SO"_2# in air is #"0.5 ppm"#, what is the percent by mass?
- What is the meaning of #"parts per million concentration"#? If the concentration is #"250 ppm"# with respect to #NaCl#, what are the concentrations of sodium and chloride ions?
- What is the concentration in #"ppm"# if #18.5*g# of solute are dissolved in a #125*L# volume?
- Question #65e0c
- Question #36d85
- Question #c7380
- Question #f9956
- Question #c4d6f
- Question #9a5c5
- Question #1f3a2
- What is the #"ppm"# concentration of salt in a solution composed of #3.5*g# of salt, and #96.5*g# water?
- What is the concentration in parts per million of a 500 g sample of drinking water that contains 45 mg of lead?
- How many grams of #"KNO"_3# should be dissolved in water to make #"500.0 g"# of a #"20.0-ppm"# solution?
- What is molarity of K^+ in a solution that contains63.3ppm of K_3Fe(CN)_6.?(atomic masses are: K=39.1, Fe=56, C=12 , N=14)