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1 mg/kg with recoveries of 90–100%. 7.2 ENVIRONMENTAL SAMPLES Chlorine dioxide has been measured in air and water. Methods for determining levels in the air include spectrophotometry and ion chromatography. Environmental analyses of chlorine dioxide in water are Atomic number, 17; atomic weight, 35.453. A member of the halogen family. Under normal conditions (0°C and 0.1 meganewton/m2, or 1 kilogram-force/cm2), chlorine is a yellowish green gas, with a pungent, irritating odor. It occurs naturally in the form of two stable isotopes: 35 Cl (75.77 percent) and 37 Cl (24.23 percent).
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W = Mass flowate (kg/s). Z = Gas compressibility factor which represents the gas's deviation from ideal gas behavior. Typically 1.0 at standard conditions. Typically decreases as pressure increases then increases at high pressure. Can be as low as 0.4 or so and up to 2 or so. m: kg t: s v: ms-1 Calculating the mass of an ion (in kg) • Avogadro’s constant, L, is the number of ions present in a sample with a mass equal to its relative isotopic mass in g - Avogadro’s constant, L = 6.022 x 1023 Example: 24g of 24Mg+ ions contains 6.022 x 1023 ions 24 x 10-3 kg of 24Mg+ ions contains 6.022 x 1023 ions
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44. The element chlorine contains two isotopes3517Cl and , which has a mass of 34.98 amu and 3717Cl , which has a mass of 36.98 amu. The atomic mass of chlorine is 35.46 amu. Calculate the percentage of each of the isotopes in chlorine. 45. Use the data given in the following table to calculate the molar mass of naturally occurring argon. The Centers for Disease Control and Prevention provides independent oversight to the U.S. chemical weapons elimination program. This page is a job aid for emergency room procedures in chemical hazard emergencies.
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Mar 23, 2018 · Chlorine has two isotopes. Chlorine-35 has an actual mass of 34.9689 u and chlorine-37 has a mass of 36.9659 u. In any sample of chlorine atoms, 75.771% will be chlorine-35 and 24.229% will be chlorine 37. (a) What mass of gaseous carbon dioxide can be absorbed by 1.00 kg of lithium? (b) At STP, what is the volume of CO 2 produced? Solution: 1) Write the balanced chemical equation for the described reaction: 2LiOH + CO 2---> Li 2 CO 3 + H 2 O. 2) However, there is a possible problem. The question asks for 1.00 kg of lithium, not lithium hydroxide.
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Nov 11, 2020 · Chlorine, chemical element of the halogen group that is a toxic, corrosive, greenish yellow gas, irritating to the eyes and respiratory system. Much chlorine is used to sterilize water and wastes, and the substance is employed either directly or indirectly as a bleaching agent for paper.
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The official IUPAC unit for gas density is kg/m 3 (not g/L). However, it turns out that one kg/m 3 equals one g/L. Here is a brief video explaining the conversion. One place teachers like to bring gas density into play is when you calculate a molar mass of a gas using PV = nRT. O g 43.2g 272.0 g 20.0 g = 381.2 g molar mass (b) massof 1 mol of grannies = 6.02 x 10B x 52 kg = (c) massof 1 mol = 3.52 x 10-2 g x 10B =212 g (d) mass of 1 mol of electrons = 6.02 x x 9.1 x 10-ag = 5.5 x 104 g (e) 3Cu=3x63.5 = 190.5g 80 =8x16.o = 128.0 g 2H=2x 1.0= 2.0 g 2C 12.0= 24.
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Calculate the mass of chlorine in 21 kg of C2F3Cl3.? Find answers now! No. 1 Questions & Answers Place.
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A block of metal has a width of 3.2 cm, a length of 17.1 cm, and a height of 4.5 cm. Its mass is 1.5 kg. Calculate the density of the metal. -- 1000 g = 1 kg: 6.1 g/cm^3: What is the weight, in pounds, of a 195-kg object in Jupiter? -- W = mass x gravity .. 1 lb = 0.454 kg: 1010 lbs: Which subatomic particle(s) are found in the nucleus of the atom?
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c. Calculate the mass feed rate of hydrogen (kg/s) required to produce 4 x 106 metric tons of ethane per year, assuming the reaction goes to completion and that the process operates for 24 hours a day and 300 days a year. (20.6 kg H 2 /s) Question 2 Ethane is fed to a dehydrogenation reactor at a rate of 150 kmol/h.
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Significant immedate reductions in lung function were reported in a study of 1807 millworkers exposed to chlorine gas after a train derailment led to an estimated 54,915-kg release of chlorine in Graniteville, South Carolina.
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Sep 18, 2020 · The number of moles and the mass (in kg) of carbon dioxide formed by the combustion of 20.0 kg of carbon in an excess of diatomic oxygen. The number of moles and the mass (in kg) of copper(II) carbonate needed to decompose in order to produce 1.500 kg of copper(II) oxide, where CO 2 is the other product.
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DIN 51577-3 Testing of mineral oil hydrocarbons and similar products; determination of chlorine and bromine content; mass fraction 1000 mg/kg, analysis by wavelength dispersive X-ray spectrometry (XRS)
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The mass of C-12 isotope was taken as 12 atomic mass units. The scale in which the relative atomic masses of different atoms are expressed is called atomic mass unit scale or amu scale. (In the recent years, the new symbol ‘u’ (which means unified mass) is recommended to be used in place of amu. A sample of chlorine has two naturally occurring isotopes. The isotope Cl-35 (mass 35.0 amu) makes up 75.8% of the sample, and the isotope Cl-37 (mass = 37.0 amu) makes up 24.3% of the sample.
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Atomic number, 17; atomic weight, 35.453. A member of the halogen family. Under normal conditions (0°C and 0.1 meganewton/m2, or 1 kilogram-force/cm2), chlorine is a yellowish green gas, with a pungent, irritating odor. It occurs naturally in the form of two stable isotopes: 35 Cl (75.77 percent) and 37 Cl (24.23 percent).
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Jun 21, 2020 · Molecular weight Cl 2 =70 g/mol = 70 x 10-3 kg/mol. Given , 25 kg of each chlorofluorocarbon (CFC) 120 x 10-3 kg CF 2 Cl 2 contains 70 x 10-3 kg of Cl 2 gas. 1 kg CF 2 Cl 2 contains kg of Cl 2 gas . 25 kg CF 2 Cl 2 contains kg of Cl 2 gas. Answer : 14.58 kilograms of chlorine gas is present. We know the mass of the chloride deposit (~ 1.4 × 1011kg) and the surface area of the basin (~ 1.2 × 109m2) (Hynek et al., 2015) Assumptions: • Chlorides are NaCl • Porosity of the deposit is 45 % • Diffusivity (�) of the basin rock = 7 × 10-7m2s-1(typical for silicates) We calculate ~ 2.5 × 104kg rock/m2(i.e. ~ 14.9 m depth) weathering
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The 5-kg mass is heavier than the dog, so take it off the pan and place a 1-kg mass on the pan. Add 1-kg masses to the left pan until it goes down. Then take one of the 1-kg masses off the pan so that the masses are above the dog. containing 1257 or 2506 mg of chlorine per kg (62.5 or 125 mg/kg of body weight per day) for 28 days (13). Enhanced weight gain was observed in all male rats (10 per dose) given drinking-water containing chlorine at 0, 20, 40, or 80 mg/litre (0, 4.1, 8.1, or 15.7 mg/kg of body weight per day) for 6 weeks (14). The results of a 4-week study in ...
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Aug 19, 2020 · Using the Hach thiosulfate standard solution Product # 2409353: Use 1.13 mL of 0.0250 N thiosulfate standard solution for every milligram of chlorine The amount in milligrams of Cl2 in a sample = (concentration result from a chlorine test) x (the number of liters of sample that is being treated). Example: 500 mL sample of 2.0 mg/L = 1 mg Cl2. Mass Load (kg/day) = Flow {MGD} x Concentration {mg/L} x 3.785 . V6 * V46 * 8.34. Where: V6 is flow in MGD, V46 is concentration in mg/L. V452 / V450 * 1000. Where: V452 is 30 min settleometer, V450 is MLSS. V102/V460. Where: V102 is BOD primary effluent lbs, V460 is MLSS lbs. V460 / V101. Where: V460 is MLSS lbs, V101 is TSS lbs in primary ...
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Jan 13, 2014 · (iii) The formula unit mass of sodium sulphite (Na2SO3. (Atomic mass : Na = 23 u ; S = 32 u ; O = 16 u ; H = 1u) (NA = 6.022 x 1023 mol-1) molecules of carbon dioxide (CO2) Q.133 The mass of an empty 40 litre petrol tank of a vehicle is 8.0 kg. What will be its mass when filled completely with a fuel of density 700 kg/m3. B To convert tons of oxygen to units of mass in grams, we multiply by the appropriate conversion factors: mass of O 2 = 1.00 tn × 2000 lb tn × 453.6 g lb = 9.07 × 10 5 g O 2. Using the molar mass of O 2 (32.00 g/mol, to four significant figures), we can calculate the number of moles of O 2 contained in this mass of O 2:
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Example: Determine the mass (in grams) found in 7.28 x 1028 nitrogen atoms. Problem : Calculate the mass (in kilograms) of chlorine in 25 kg of each chlorofluorocarbon (CFC).a. CF2Cl2
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Average Atomic Mass Since many elements have a number of isotopes, chemists use average atomic mass. On the periodic table the mass of carbon is reported as 12.011 amu. No single carbon atom has a mass of 12.011, but in a handful of C atoms the average mass of a carbon atom is 12.011. Why 12.011? If a sample of carbon was placed in a mass ... A block of metal has a width of 3.2 cm, a length of 17.1 cm, and a height of 4.5 cm. Its mass is 1.5 kg. Calculate the density of the metal. -- 1000 g = 1 kg: 6.1 g/cm^3: What is the weight, in pounds, of a 195-kg object in Jupiter? -- W = mass x gravity .. 1 lb = 0.454 kg: 1010 lbs: Which subatomic particle(s) are found in the nucleus of the atom?
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The atomic weight of chlorine (after IUPAC 2009) is [35,446;35,457]. The rounded molar mass is 35,45 g/mol, to 4 significant figures. So the molar mass of chlorine (Cl2 molecule) will be 70.90 g/mol Chlorine Dioxide Tablets
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mass of chlorine= 0.568 Kg. sodium chloride= 936 g. mass of sodium= ? To solve this problem first of all we will write the chemical equation: Na + Cl2 → NaCl. Balanced chemical equation: 2Na + Cl2 → 2NaCl. Formula: number of moles = mass/ molar mass. first of all we will calculate the moles of sodium chloride, number of moles = 936 g/ 58.44 ... Katie's turns out to be 206.77 moles, since one will contains two more off chlorine. 206 177 more will contain 413.54 moles off during the weight off chlorine Present is 14.66 kilogram. Well, Bobby CFC l six. The number off mole is 182 more since one more contains three mole off roading.
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(a) What mass of gaseous carbon dioxide can be absorbed by 1.00 kg of lithium? (b) At STP, what is the volume of CO 2 produced? Solution: 1) Write the balanced chemical equation for the described reaction: 2LiOH + CO 2---> Li 2 CO 3 + H 2 O. 2) However, there is a possible problem. The question asks for 1.00 kg of lithium, not lithium hydroxide.About Chlorine gas; 1 cubic meter of Chlorine gas weighs 2.898 kilograms [kg] 1 cubic inch of Chlorine gas weighs 0.00167515 ounce [oz] Chlorine gas weighs 0.002898 gram per cubic centimeter or 2.898 kilogram per cubic meter, i.e. density of chlorine gas is equal to 2.898 kg/m³.
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Example: Determine the mass (in grams) found in 7.28 x 1028 nitrogen atoms. Problem : Calculate the mass (in kilograms) of chlorine in 25 kg of each chlorofluorocarbon (CFC).a. CF2Cl2 This will ensure that any chlorine added will work more efficiently - high pH levels in particular will impair the efficiency of the chlorine doing its job.With the pool filter system running, add a chlorine based swimming pool shock at the rate of 1.6 kg. per 1,00,000 litres of pool water dosage for killing algae.