Q: What mass in grams of CO2 is evolved in the complete decomposition of a 2.300-g sample that is 38.0%…
A:
Q: What is the mass percentage of O in CO₂? Provide an answer to two decimal places.
A: Molecular weight of C and O are 12.0107 gm/mol and 15.999 gm/mol respectively. Hence, molecular…
Q: What is the mass percentage of C in caffeine, C18H10N4O2
A: The mass percentage is calculated by the formula, mass%=mass of elementmass of compound×100
Q: The ratio of Molar masses of C6H1206 and Water is O 180:10 O 342:18 O 1:10 O 10:1
A: Molar mass: It is defined as the mass in grams of one mole of any substances. Units of molar mass…
Q: Barium metel was quantitatively precipitaded from 1.52g sample of BaCl2+2H2O. The mass of the barium…
A: Mass percentage = (mass of solute / mass of solution) x 100%
Q: how many moles of Fe3O4 are required to supply enough iron to prepare .260 mol Fe2O3?
A: 1 mole of Fe2O3 contains 2 moles of Fe. Hence, 0.260 moles of Fe2O3 will contain 0.260 * 2 = 0.520…
Q: What is the mass percentage of sulfur in butyl mercaptan (C,H10S
A: Given: The compound is butyl mercaptan i.e. C4H10S. Assuming 1 mole of C4H10S.
Q: What would you need to do to make C14H21O14 an empirical formula?
A: To find emperical formula.
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Q: Potassium iodate solution was prepared by dissolving 1.022 g of KIO3 (214.00 g/mol) in a 500-mL…
A: Molarity of a solution = Number of moles of solute/ volume of solution in L Number of moles of a…
Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.
A:
Q: What % fraction of the electrons would you have to remove from a 5.0 mg sphere iron in order to make…
A: Given: mass of Fe sphere = 5 mg = 0.005 g charge on sphere= 3C we know that, atomic mass of…
Q: What is the mass percent of carbon in oxalic acid, H2C2O4
A: Since we know that mass percent of any element in a compound is calculated as Mass % of element =…
Q: What mass of CO is required to react with 651 g of Fe2O3 ?
A: The balanced chemical equation for the given reaction is,
Q: How many equivalents of PO43 are there in 6.00 mol of Mg3(PO4)2 ?
A:
Q: B. How many moles of manganomanganic oxide will react with 5.33 x 1025 atoms of aluminum?
A: The balanced Chemical equation given - 3Mn3O4 + 8Al -----> 4Al2O3 + 9Mn One mole of aluminum =…
Q: Calculate the mass (in g) of 1.2 x 1024 atoms of molybdenum, Mo.
A: using mole concept , easily determination of atoms , molecules and ions possible.
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Q: What mass of water is contained in a 5.398_g sample of Na22CO3.10H2O?
A: The mass of the sample is 5.398 g.The molar mass of Na2CO3.10H2O is 286 g/mol.The mass of water in…
Q: Determined the mass percentage of hydrogen in CH4 and C4H10?
A: Molar mass is defined as average mass of atoms present in the chemical formula. It is the sum of the…
Q: Vanadium can be obtained by processing VO2 Which is 61.42% vanadium and 38.58 % Oxygen. What mass…
A: Provided %of V in VO2= 61.42% Provided % of oxygen in VO2= 38.58% Let (w) mass of VO2 is needed to…
Q: . A sample of 1.000 g of a compound containing carbon and hydrogen reacts with oxygen at elevated…
A: Since we answer only 3 sub-parts, we'll answer the first three. Please resubmit the question by…
Q: What is the mass percentage of iodine in a solution containing0.035 mol I2 in 125 g of CCl4?
A: Given Moles of I2 = 0.035 mol and mass of CCl4 = 125 g Molar mass of I2 = 253.8 g/mol Molar mass…
Q: What is the mass percentage of C in morphine, C1,H19NO,?
A: The molar mass of morphine is 285.34 g⋅mol−1.
Q: What is the mass percentage of O in C3H8O2?
A:
Q: If the decomposition of a sample of KCIO3 produces 3.29 O2 what was the mass (g) of the original…
A: The decomposition of KClO3 in presence of heat give product KCl and O2. Hence,the chemical reaction…
Q: What is the mass percentage of Na in Na2SO3?
A: To calculate the mass percent of an element in a compound, we divide the mass of the element in 1…
Q: 4. A student completely dissolved 0.51 g of copper in concentrated nitric acid. After a series of…
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Q: What is the mass of fish, in kilograms, that one would have to consume to obtain a fatal dose of…
A: The mass of fish, in kilograms and pounds has to be given,
Q: Which is the correct mass percentage of hydrogen in acetamide, C₂H₅NO?
A:
Q: What is the mass percentage of C in caffeine, C₈H₁₀N₄O₂?
A: The concentration of an element in a compound or mixture is represented using mass percent. The mass…
Q: What is the mass percentage of O in C3H,O,?
A: The mass percentage of an element is a one of the way to express the amount of element in the…
Q: What is the mass percentage of C in CH₃CH₂OH? Provide an answer to two decimal places.
A:
Q: What is the mass percentage of Na in NaF?
A: The mass percent of an element is defined as the mass of that particular element present in the…
Q: The density of phosphoric acid (H3PO4) is 1.885 g/cm². How many moles are present in 0.245 L of…
A: NOTE : The units of density will be g/cm3 and not g/cm2. Given : Density of H3PO4 = 1.885 g/cm3 =…
Q: What is the mass percentage of C in caffeine, CsH1oN4O2? Provide an answer to two decimal places.
A: Mass percentage of Carbon in Caffeine is 6.18%
Q: mass in grams, of 0.175 mol of sucrose (C12H22O11)
A: Given that moles of sucrose = 0.175 mol, molar mass= 342.3 g/mol [The molar mass can be calculated…
Q: what is the mass percentage of C in hydrochlorothiazide, C7H8ClN3O4S2?
A: Mass percentage=Mass of particular speciesTotal massx100Hydrochlorothiazide molecular…
Q: What is the mass percentage of C in codeine, C18H21NO3?
A:
Q: If 10.7 kg Al reacts with an excess of Fe,O3, how many kilograms of Al,0, will be produced?
A: Given :- 2Al(s) + Fe2O3(s) -----> Al2O3(s) + 2Fe(l) Mass of Al = 10.7 kg To be calculated :-…
Q: 2) If 28.9g of Lithium Nitride react, how many grams of Magnesium Carbonate are needed to react with…
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Q: A single tablet of regular strength Tylenol contains 325 mg of the active ingredient, acetaminophen…
A: The molecular formula of acetaminophen has been provided as C8H9NO2.
Q: If 2.50 metric tons of bornite is reacted with excess O2 and the process has an 86.3% yield of…
A: Formula of bornite is Cu3FeS3 Hence the reaction taking place will be Cu3FeS3 + O2 ---------->…
Q: A rock is 6.5% by mass fayalite (Fe2SiO4), 14.2% by mass forsterite (Mg2SiO4), and the remainder…
A: In this question given: Fe2SiO4- Fayalite has 6.5% and 14.2% by mass forsterite, remaining is 79.3%…
Q: Consider the reaction 3X + 2Y - 5C + 4D With excess Y, how many moles of X are needed to produce…
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Q: What is the maximum mass of ammonia that can be produced from a mixture of 1.40 x 10' g N, and 4.60…
A: Given data, According to the stoichiometry, One mole ( 28.014 g ) of nitrogen will react with three…
Q: What is the composition, in atom percent, of an alloy that contains a) 35 g copper and b) 49 g zinc?
A: Given :- mass of Cu in alloy = 35 g atomic wt. of Cu = 63.55 g/mol mass of Zn in alloy = 49 g…
Q: Calculate the mass percentage of chlorine in trichlorobenzene, C6H3Cl3.
A:
Q: What is the mass percent of aluminum in Al(NO3)3 • 9H2O?
A: The compound given is Al(NO3)3•9H2O.
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- what is the specific gravity of a substance that displaeces 1.2ml and has a mass of 5.021gA 30-gram soil sample was leached with excess 1N solution of ammonium acetate and was later found that it can hold 0.096g of NH4+. What is the CEC of the soil in me/100g?Mass of original mixture: 0.280g Mass of naphthalene recovered: 0.160 g Mass of 3-nitroaniline recovered: 0.015 g Mass of benzoic acid recovered: 0.135 g 1. a) calculate % by mass of naphthalene, 3-nitroaniline and benzoic acid in original sample 1. b) calculate total mass of three recovered components (g) 1. c) calculate total percent recovery (%)
- To determine the mass of Fe2O3 from the given mass of K3Fe(CN)6, the gravimetric factor to be used is a. Fe2O3 / K3Fe(CN)6 b. Fe2O3 / 2K3Fe(CN)6 c. 2Fe2O3 / K3Fe(CN)6 d. 3Fe2O3 / 2K3Fe(CN)6600g of molybdenum (C-0.25) is heated from 250K to 650K. What is delta H?What is the Ksp of Zn3(PO4)2 (MW = 320.8 g/mol) if its solubility in water at 25 °C is 4.9 x 10-5 g/L? format for the scientifc notation 1.0 x 10^-1
- Congratulations, you have just been hired at a local laboratory. Your first task is to prepare 10.0 mL of a 1.50 x 10-6 M solution of a small protein (FW: 3600 g/mole). Available to you are an electronic balance that is accurate to the nearest 0.001 g, a 1.00-mL pipette, and 10-mL volumetric flasks. Describe how to prepare the desired solution. (Note that the amount of protein is so small that you will need to make a more concentrated stock solution and dilute it.)kindly help me with this problem thank you ill give like for the answer 3. (a) A 25 g organic Substance was purified using recrystallizabon. Amount recovered after recrystallaabon was 18 g Determine % purity of the sample (b)If % yield obtained after sublimation process was 60%. how much sample was present if 12 grams of an organic compound was recovered? ( c)Determine % impurity from bAn impure sample of Na3PO3 weighing 0.1 g is dissolved in 35 mL of water. A solution containing 45 mL of 3% w/v HgCl2, 30 mL of 10% w/v sodium acetate, and 10 mL of glacial acetic acid is then prepared. After digesting, filtering, and rinsing the precipitate, 0.2857 g of Hg2Cl2 is obtained. Report the purity of the original sample as % w/w Na3PO3.
