Environmental chemistry question. Please answer with steps/details both questions 1) The National Ambient Air Quality Standard for carbon monoxide (CO) is 35 ppmv measured over a one-hour averaging time. Find the equivalent concentration in (a) percentage and (b) mg/m3 under the standard condition when its density is 1.145 kg/m3.

Environmental chemistry question. Please answer with steps/details both questions 1) The National Ambient Air Quality Standard for carbon monoxide (CO) is 35 ppmv measured over a one-hour averaging time. Find the equivalent concentration in (a) percentage and (b) mg/m3 under the standard condition when its density is 1.145 kg/m3.

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.24QAP

See similar textbooks

Similar questions

A 4.0L package is at a pressure of 95.0 kPa. If the temp went up to 471K and both the pressure and volume rose to 101kPa and 6.0L, respectively, what was the original temp?
The gas left in a used aerosol can is at a pressure of 199.5 kPa at 292.9K. If the can is thrown into a fire what will the internal pressure of the gas be when its temperature reaches 1,015.1K? Answer in units of kPa. Round your result to the nearest tenth. Please include all steps, formula used, and a clear handwriting. Thank you!
SpaceX recently launched their Falcon Heavy rocket (Feb. 6, 2018). It is based on their existing Falcon 9 rocket. The Falcon 9 rocket has a first stage which is a 40 m high by 3.7 m diameter cylinder. This cylinder contains the fuel used to propel the rocket which consists of RP-1 (rocket propellant-1, high grade kerosene), and liquid oxygen, O2 (`). RP-1 is a complex mixture of hydrocarbons but let’s approximate it with a chemical composition of C12H26. The densities of the fuel are ρ (RP − 1) = 0.83 g cm3 ρ (liquid O2) = 1.141 g cm3 If the total volume available for the two tanks is contained in the 40 m high by 3.7 m diameter first stage, determine the volume of each individual tank that will provide the exact amount of RP-1 and oxygen for the reation (no limiting reagent) and take up the entire volume of the first stage. Here are some suggestions to guide you. 1. Write a balanced combustion reaction for C12H26 with O2. 2. Determine the ratio of the volumes of the individual RP-1…
The pressure exerted on the gas entrapped in the syringe is proportional to the total mass on the platform. Make two plots. (i) Vol/mL vs. Total mass/g (ii) Vol/mL vs. 1/(total mass/g) If warranted, obtain a trendline and trendline equation. Comments in the results. Is Boyles Law obeyed? Explain.
Tooling for a vacuum deposition system is cleaned and reassembled. Unfortunately, a drop of water 0.125 cm3 in volume is left in the bottom of a screw hole. Due to the obstructed path to the pump, a negligible amount of water escapes during the early stages of pumpdown, and the drop becomes a virtual leak at a chamber pressure of 4.3E-06 torr. Find the volume of gas formed by the water at this pressure (assume it stays at room temperature). The density of water is 1g cm-3 and the molecular weight 18 g mole-1. (First, determine the number of moles in the drop of water, and use the ideal gas law to determine the volume)(b) To make this result clearer, what is the added time (in hours) to pump out this chamber due to this droplet if the pump, at that pressure, has a rate of 1480 L/s?
1) Mass of flask, aluminum foil, and rubber band 68.45g 2) Temp. Of boiling, water 98.20 0C 3) Barometric pressure 755 mmHg 4) Volume of flask (volume of vapor occupies flask) 152 ml 5) Mass of flask, aluminum foil, rubber band, and condensed vapor 68.60g 6) Mass of condensed vapor is (5)-(1) Find Molecular weight of unknown ______ g / mol Calculation PV = (m/M)RT) è M = (mRT) / PV = ? Unknown liquid- Based on Molecular weight determine which unknown below has this molecular weight: Methanol, Ethanol, Isopropanol, Propanol. UNKNOW IS : __________________________
You are absolutely the BEST. Finally someone that dosen't calculate this exercise as 836f66dgsffjgvkik!!!! I understand everything you did, but I have one question. Some experts says that km can be calculated by saying Vmax from date divided by 2 and then they find Km by going down on x-axis on the graph. But, you used the MM equation, to solve for Km. Is both method the same? Or is one of them more precise than the other? *And if theres no need to reply back after you answering my question, then I will thank you again for your help. I have more these types of exam questions that I will probably upload later, and I hope someone like you will look at it.
Salicylic acid and ethanamide were made to react in basic medium to produce aspirin and substance X. A chemist is doing a research regarding the synthesis and have seen in scientific references that the process would produce an expected amount of 8.6 grams of aspirin at 74.2% efficiency given the right condition and amount of starting material: Density Ethanamide: 1.16g/mLD) How many grams of ethanamide should be used? E) What volume of excess ethanamide must be taken from the stock ethanamide solution? F) Show the mechanism of the reaction.OWN SOLUTIONS AND NOT AI FOR UPVOTE
In a metered-dose inhaler (MDI), such as those used for asthma medication, medicine isdelivered by a compressed-gas propellant. (The device is similar in concept to a can of spraypaint.) When the inhaler is activated, a fixed amount of the medicine suspended in thepropellant is expelled from the mouthpiece and inhaled. In the past, chlorofluorocarbons(CFCs) were used as propellants; however, because of their reactivity with the Earth's ozonelayer, they have been replaced by hydrofluorocarbons (HFCs), which do not react withozone. Now HFC use is also being reduced due to their high global warming potential. In one brand of inhalers, the original CFC propellant was replaced by HFC 227ea (C3HF7,heptafluoropropane). The volume of the inhaler propellant reservoir is 1.00×102 mL, and thepropellant is charged into the reservoir to a gauge pressure of 4.443 atm at 23°C. An onlinesearch for properties of HFC 227ea yields the information that the critical temperature andpressure of the substance…
A student thermally decomposed a 0.150 gram sample of impure potassium chlorate. Manganese dioxide was used as a catalyst in the reaction. The student collected 43.60 mL of oxygen gas over water in a eudiometer. Potassium chloride was the other product of the reaction. The temperature and pressure at collection time were 20.00 ºC and 762.10 mm Hg respectively. The water level in the eudiometer was 4.22 cm below the outside water level in the beaker. Balanced Equation: 2KClO3->3O2+2KCl. d) How many molecules of oxygen gas were collected? e) What is the percent purity of the original potassium chlorate sample?
Water was drained from a buret between the 0.12- and 15.78-mL marks. The apparent volume was 15.78 - 0.12 = 15.66 mL. Measured in air at 258C, the mass of water delivered was 15.569 g. What is the true volume?
The gas entering an NH3 reactor are in mole ratio of 4H2 :1N2 The mole ratio of the gases in the exit stream is 4.25H2 :IN2 The reaction is H2 +N2 NH3 Calculate a) the limiting reactant b) the moles of excess reactant c) percent excess reactant d) kmole of entering gas that must enter the reactor to produce 150,000 kg of pure NH3 per day e) volume in liters of entering gas measured at 500°C and 760 mmHg