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Q: If 10.32 ml of 0.0523 M S2O3 2- reacts with I2 in a sample of PVP-I solution, how many grams of I2…
A: Given: Molarity of S2O3 2- = 0.0523 M Volume of S2O3 2- = 10.32 mL
Q: ism of ving eactions. а) OBr Br OtBu HOtBu b) HH H HOtBu OtBu CI CI c) H3O H20
A: Since you have posted question with multiple subparts as per guidelines we can solve only one per…
Q: 1 C2H4 + 3 O2 --> 2 CO2 + 2 H2O What is the mole ratio (fraction) of carbon dioxide (CO2) to oxygen…
A: the mole fraction is also called the amount fraction it is identical to the number fraction which is…
Q: With the given info what is the mass percent of As in the 1.00 kg soil sample? AsO4-3 +3 Ag+ =>…
A: Given : Mass of Ag3AsO4 produced = 0.370024 g And mass of soil sample = 1.00 Kg = 1000 g
Q: 2. What mass of calcium carbonate CaCO3 (MM=100 g/mol) must be heated to form 3.00L of CO, gas at…
A:
Q: how to calculate moles of NaHCO3 and moles of CO2 from Mass of NaHCO3= 0.081g Volume of CO2=5ml…
A: We can determine the moles of substance from the mass as below : Moles of substance = ( mass of…
Q: the volume is 207.16ml for the "Dry" oxygen at STP.. I need to determine the purity of the orginal…
A: Given that, The volume of dry Oxygen at STP V = 207.16 mL = 0.20716 L Moles of dry oxygen at STP n…
Q: The hydrated salt, MY2·xH2O, was heated strongly in a crucible to remove all the water molecules of…
A: (i) Calculation of mass of hydrated salt: Calculation of mass of anhydrous salt: Mass of water in…
Q: The hydrated salt, MY3·xH2O, was heated strongly in a crucible to remove all the water molecules of…
A: Given: Mass of empty crucible and cover = 28.86 g Mass of crucible, cover, and hydrated salt = 32.86…
Q: 1.2 Consider the molecule, ClPO2 (The Phosphorus atom is the central atom) 1.2.1 Draw the 3-D Lewis…
A: (1.2) The structure is The formal charge = (valence electron of atom) – (non-bonded electrons + ½…
Q: An herbicide is found to contain only C, H, N, and Cl.The complete combustion of a 100.0-mg sample…
A: The empirical formula is the chemical formula of any compound that represents the proportions of…
Q: 5. 2C,H,0, + 150, – 14CO, + 6H,O a) o, to Co, b) C,H,O, to 0, c) co, to H,0
A: Answer :- The mole-to-mole ratio for the reaction 2C7H6O2 + 15O2 → 14CO2 + 6H2O is O2 to CO2…
Q: How many grams of NaBr are needed to prepare 16.8 g of 6.89% (w/w) NaBr solution in water? How many…
A: Given mass ℅ = 6.89℅ mass of NaBr solution = 16.8 g density of water = 0.988 g/ml
Q: Given the following balanced reaction 4KNO3 (aq) → 2K,O (s) + 2N2 (g) + 502 (9), fill in the blanks…
A: Generally, the potassium nitrate decomposed to form potassium oxide, nitrogen gas, and oxygen gas.…
Q: How many g of ZnS is needed to react completely with 41.22 gram O2 according to- this equation? 2ZnS…
A:
Q: The hydrated salt, MY3.XH2O, was heated strongly in a crucible to remove all the water molecules of…
A: From the given information , we have, Mass of empty cruicible and cover, m1 = 28.86 g…
Q: Average No. of moles of KMNO4 - No. of moles of H20 = 1.07 x 10 mol %3D = 2.675 x 10mol =D0.0535 M…
A: Question given, Concentration of H2O2 = 0.0535 (M), we have molecular weight of H2O2 = 34 gmol-1…
Q: Reports e-Services Y Academic Departments ETC - CIMS - Al Jula ion 27 Answer the following questions…
A: Molarity is defined as number of moles of solute present in the given solution in mL.
Q: Consider the following reaction. How many moles of oxygen are required to produce 4.00 moles of…
A: The given equation is already a balanced equation. Fr the equation we can infer that 6 moles of…
Q: :. 2 in Au ● Na₂ Coz + 2 Call₂ -> ? Cal 03 (s) + ? mass 0.0008 g mass of of Сасоз 2.1547 Volume of…
A:
Q: Write the empirical formula for the hydrated KAl(SO4)2, based on moles of anhydrous KSI(SO4)2=…
A:
Q: Consider the beer Samual Adams Boston Lager, that has an approximate alcohol content of 4.5. Which…
A:
Q: 10) How can you prepare 500 ml of 0.1M HCI, if the percentage is 35%, and density = 1.18g/ml,…
A: W = M x Mm x V/1000 Where, W = Mass in g; Mm = Molar mass; V = Volume in mL
Q: The ethyl alcohol(Mw-46.06 g/mol) content of many juice produced in the United States is 5.07%…
A: We will find volume of ethyl alcohol and then convert it to moles.
Q: JWhen 27.3 g KCJ Is added to a solution containing 28.3 g of Pb2+, a precipitate forms. The…
A: Given data is as follows: Mass of KCl = 27.3 g Mass of Pb2+ = 28.3 g The mass of PbCl2 obtained =…
Q: Prepared 1 M of HCL in 1000 ml, that density is 1.19 g/cm3 and percentage w/w is 37 %, Mwt is 36.5?…
A: The following equation can be used to determine the required volume to prepare 1M HCl in 1000 mL,…
Q: How many moles of Ba(OH)2 are present in 275 mL of 0.600 mol L-1 Ba(OH)2? Express your answer…
A: Volume of Ba(OH) 2= 275 ml = 0.275 L Molarity of Ba(OH) 2 = 0.600 mol L —1
Q: mL) of gaseous H2 will be produced at 27°C and 0.973atm, if 75.0 g of zinc are reacted with 14.5L of…
A: Since you have posted multiple questions as per the guidelines we can solve only one per session .…
Q: A local water retention pond was found to have elevated levels of mercury concentrated as 14 ng per…
A: A mole is defined as the amount of substance containing the same number of discrete entities (atoms,…
Q: Citric acid, C6H8O7, a component of jams, jellies, and fruity soft drinks, is prepared industrially…
A: The complete balanced equation = C12H22O11 + H2O +3O2 →2C6H8O7 + 4H2O Given in the question, Mass of…
Q: A gas mixture in a line outlet has the following molar composition: 15.1% C2H6; 43.5% SO2; 8% O2 and…
A: First assume total moles to be 100.
Q: For every one molecule of NaHCO3(s) there is one molecule of CO2(g) that forms: NaHCO3(s) +…
A: a gas is said to be ideal gas if it follows ideal gas equation PV = RT
Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/mol and…
A:
Q: Q4. In underground coal combustion in the gas phase several reactions ta place including: Co + ½02 →…
A: Given : 100 moles of feed In feed, CO2 = 15.22 mol CO = 13.54 mol H2 = 15.01 mol CH4 = 3.2 mol N2 =…
Q: A sample of an industrial waste water is analyzed and found to contain 16.5ppb Fe2+. How many grams…
A: The concentration of any substance can be expressed in different ways such as molality, molarity,…
Q: A 0.755-g sample of hydrated copper(II) sulfate (CUSO4•NH2O) was heated until it lost all the water…
A: Given: Mass of CuSO4.nH2O taken = 0.755 g And mass of CuSO4 produced after heating = 0.483 g Molar…
Q: The perfect gas equation for 12 g of 2He is
A: The ideal/perfect gas equation is PV=nRT where n = number of mole of gas Given data mass of Helium…
Q: A Hydrate of cobalt (II) chhloride has a mass of 165.88 g before heating. After heating, the…
A: Given: The mass of a hydrate of cobalt (II) chloride before heating = 165.88 g The mass of the…
Q: Weight of Na2SO4 Sample 0.3512 g C. Total Vol. of Precipitant (BaCl2) used WITH 1M BaCl2…
A: Given that the weight of Na2SO4 sample is 0.3512 g.
Q: 13 H2 gas is Collectes at StP were given 25s.sq Zinc cara SUppose You 49.39 hy rochloric a cid Zn…
A:
Q: .The indicator of Moher regent is KMN04. O KCr04. O
A: Answer of the question given below,
Q: solution is prepared by dissolving 102 g of NaCl in 924 g water to make a total solution volume of…
A:
Q: Q1/A) A mixture 300 kmole has the following composition by mole :- (C.H10 20% , CsH12 30%, CH14 20%,…
A: Total moles of gaseous mixture = 300 kmole…
Q: Calculate the mass of KHC8H4O4 (molar mass = 204.22 g/mol) that reacts with 20.0 mLof 0.100 M NaOH.…
A: Given dataMolar mass of KHC8H4O4 =204.22g/molVolume of the NaOH solution= 20.0mLMolarity of the NaOH…
Q: 1. What volume of 65% nitric acid with a density of 1391 kg / m ^3 can be produced from 1.5 tons of…
A:
Q: The hydrated salt, MY2 XH2O, was heated strongly in a crucible to remove all the water molecules of…
A: Calculation of mass of hydrated salt: Calculation of mass of anhydrous salt: Mass of water in the…
Q: 5. Huge quantities of sulfur dioxide are produced from zinc sulfide by means of the following…
A: Percentage yield of a reaction is defined as : % yield = (actual yield/theoretical yield) x 100%
Q: What volume of O2 (MW = 32.00 g/mol) at STP is required for the complete combustion of 152.26 g CS2…
A: We have to calculate the volume of O2 (MW = 32.00 g/mol) at STP is required for the complete…
Q: Consider the reaction: 2 Al(s) +3H,SO4(aq) --> Al2(SO4)3(aq) + 3H2(g) (molar mass of aluminum…
A: 1- First we will determine the moles of H2SO4 : moles of H2SO4 = [ Molarity × Volume ] moles of…
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- Determine the percentage Fe in a sample of limonite from the following data:Sample : 0.5000g ; KMnO4 used = 50.00 ml ; 1.000ml of KMnO4 is equivalent 0.005317 g Fe,FeSO4 used = 6.00 ml; 1.000ml FeSO4 is equivalent 0.009200 g FeO ( ans 44.59 %)The video referenced in the question is https://youtu.be/03zVy3wLLC8A core sample is saturated with an oil (?o = 35oAPI), gas and water. The initial weight of the sample is 224.14 g. After the gas is displaced by water (?w = 1 g/cm3 ), the weight is increased to 225.90 g. The sample is the placed in a Soxhlet distillation apparatus, and 4.4 cm3 water is extracted. After drying the core sample, the weight is now 209.75 g. The sample bulk volume, 95 cm3 is measured in a mercury pycnometer. Find the porosity, water saturation, oil saturation, gas saturation and lithology of the core sample.
- write the application of supramolecular chemistry...asap plz dont use googleThe %purity of a powdered crude sample of Na2CO3 containing only inert impurities is to be determined by reacting 225.0 mg of the crude sample to 10.0 mL of 3.00 M HCl solution, and bubbling the resulting CO2(g) product in water that is at exactly 29 °C. After the reaction has completed, the level of the liquid inside the eudiometer rests 4.30 cm above the water level in the beaker. The graduation on the eudiometer indicates that the trapped gas is 44.37 mL. The experiment was done under a barometric pressure of 755.2 torr. a. How many moles of CO2 were collected? b. What is the percent purity of the sample? Round off to the nearest whole numberThe %purity of a powdered crude sample of Na2CO3 containing only inert impurities is to be determined by reacting 225.0 mg of the crude sample to 10.0 mL of 3.00 M HCl solution, and bubbling the resulting CO2(g) product in water that is at exactly 29 °C. After the reaction has completed, the level of the liquid inside the eudiometer rests 4.30 cm above the water level in the beaker. The graduation on the eudiometer indicates that the trapped gas is 44.37 mL. The experiment was done under a barometric pressure of 755.2 torr. What CASE does this experiment satisfy?
- A mixture of ethanol (ethyl alcohol) and water contains 40.0% water by mass.(a) Assuming volume additivity of the components, estimate the specific gravity of themixture at 20°C. What volume (in liters) of this mixture is required to provide 150 mol ofethanol?(b) Repeat Part (a) with the additional information that the specific gravity of the mixture at20°C is 0.89045 (making it unnecessary to assume volume additivity). What percentage errorresults from the volume-additivity assumption?There's 1 drink (and you are asked to determine the glucose concentration in the drink in the units of g/100mL. (Why these units? Well, once you have the concentrations in g/100mL you will be able to compare your values with the nutritional values given on the drink bottles’ labels). The sample of the drink was diluted 1/100 (i.e. by a factor of 100). This was an essential step in the method because, without it, the machine used to analyse the glucose concentration (spectrophotometer) would have given an error as the concentration would have been too high for accurate detection. What this means for you is that the dilution factor will need to be taken into consideration in your calculations (remember the aim is to calculate the concentration in the original drink and not in the diluted drink). You measured the concentration of their diluted drink using the spectrophotometer and their results were provided to them in the units mM (millimolar). Glucose Concentration in mM of drink =…There's 1 drink (and you are asked to determine the glucose concentration in the drink in the units of g/100mL. (Why these units? Well, once you have the concentrations in g/100mL you will be able to compare your values with the nutritional values given on the drink bottles’ labels). The sample of the drink was diluted 1/100 (i.e. by a factor of 100). This was an essential step in the method because, without it, the machine used to analyse the glucose concentration (spectrophotometer) would have given an error as the concentration would have been too high for accurate detection. What this means for you is that the dilution factor will need to be taken into consideration in your calculations (remember the aim is to calculate the concentration in the original drink and not in the diluted drink). You measured the concentration of their diluted drink using the spectrophotometer and their results were provided to them in the units mM (millimolar). Glucose Concentration in mM of drink =…
- A student analysed mercury content on a canned tuna. According to EPA standard, the permissible limit of mercury in fish is 0.1 ppm. In this study, an average of 11.4 ± 2.1 ng/g was obtained based on six sample replicates. Suggest a suitable analytical instrument to be used in this analysis and draw a conclusion on the safety of mercury content of this canned tuna.A 60-year-old woman who weighs 75kg requires a loading dose of an antibiotic to treat an infection. A plasma concentration of 4.5 mg/L of the antibiotic needs to be achieved for optimal therapeutic effectiveness. The volume of distribution (Vd) of this antibiotic is 0.2 L/kg. The salt factor (S) is 0.6 and bioavailability fraction (F) is 1. The antibiotic is available as a 100 mg/mL infusion.Loading dose = Amount of drug in the bodyBioavailability (F) x Salt fraction (S)Amount of drug in the body = Target conc. (C) x Volume of distribution (Vd)How many millilitres of antibiotic infusion need to be administered?State your answer to 1 decimal place.unit- mlIn a river with a constant flow rate, the factory releases wastewater containing NaCl at a concentration of 200 mmol / L to the river at 20.0 L / s. The Na+ and Cl- concentrations at the downstream observation point were 1.00 mmol / L and 0.800 mmol / L, respectively. What is the river flow Q and Cl- concentration before the inflow of drainage? The river originally contains 0.500 mmol / L of Na+.
