How many grams of aspirin (C9H8O4) are present in 7.95×1021 molecules of C9H8O4.

Q: Calculate the number of cations and anions in 7.18 g of KBr. cations anions x 10 x 10

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Q: . C. 6. . 6. . S. .. .. _H3PO4 + КОН → K+ _B₂O3 → HCI + NaOH → C + Na + NaOH + Rb + _C6H6 + S8 → _O₂…

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Q: Calculate the number of (a) nitrogen molecules (N2 molecules) and (b) nitrogen atoms (N atoms) in…

A: From given data  Mass of N2= 0.111g  Also molar mass of N2= 28 molar mass of N = 14  Formula used…

Q: Consider the following chemical reaction HCl (aq)  + HgNO3 (aq) à Hg2Cl2 (s) + HNO3 (aq) If 20.0…

A: Given data :  Mass of HCl = 20 g  Mass of HgNO3 = 30 g  Molar mass of HCl = 36.46 g .mol-  Molar…

Q: E:OH BI E:ONA Br E:ONA ....

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Q: 10. Which of the following does not match the others? 168 (A) 67.2 3.88 1000 100 10 All, (M)/mol)…

A: ◆ Electronic Configuration is the distribution of electrons in the energy levels of the atom. The…

Q: 7. State the chemical composition (constituent elements and number of atoms of each element) for a…

A: Given  is a molecule of citric acid whose molecular formula is C3H4OH(COOH)3.  Chemical composition…

Q: Lead is found in Earth's crust as several different lead ores. Sup- pose a certain rock is 38.0% PbS…

A: Given that:                       Rock consists of:                                          Galena…

Q: Is it 3.52?

A: Yes it is 3.52 Graph is

Q: The chemical formula of trinitrotoluene (TNT) is C7H5N3O6. What is the molecular mass of TNT?…

A: We have to find the molecular mass of trinitrotoluene (TNT) is C7H5N3O6. Atomic mass of Carbon =…

Q: Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom and…

A: Given :  Given that I-127 is the only natural isotope of iodine, what is the mass of one I atom…

Q: A student weighs out 94.53 grams of sodium permanganate, NaMnO4.  How many moles of NaMnO4 is this?…

A: Moles— It is the ratio of given mass of a compound to its molar mass  Mole = given mass / molar mass…

Q: Anhydrous CuSO4 can be used to remove water (an impurity) from gasoline. When the CuSO4 absorbs the…

A: Reaction corresponding to absorption of water by copper sulfate is: CuSO4+5H2O→CuSO4.5H2O Hence, 1…

Q: The mole is defined as the number of atoms in exactly 12 gg of carbon-12. The mole equals…

A: Avogadro number is the unit used for 1 mole of chemical substance. It is applied to convert the…

Q: he Freons are a class of compounds containing carbon, chlorine, and fluorine. While they have many…

A: HFC-134a  is CH2FCF3 HCFC-124 is CHClFCF3

Q: Data Table 51.589 3.053g 54.639 Mass of empty crucible Mass of hydrate Mass of crucible and salt…

A: Given: Mass of empty crucible = 51.58 g Mass of crucible and salt before heating= 54.63 g Mass of…

Q: 1. As of today Silver is trading at $27.10 per ounce. Recall that 1 ounce = 28g. If we mine 2.5x106…

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Q: 6. A student reported the following percentages for his unknown mixture: 25% NH4CI, 30% NaCI, and…

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Q: 5. A bottle of Ibuprofen (C,,H,,O,) contains 1.204 x 1024 molecules. How many grams of ibuprofen are…

A: The molecular weight is 206.29 g/mol means 1 mol of ibuprofen = 206.29 g of ibuprofen

Q: If you place 6.46 X 1027 molecules of Ca(OH)2 into this equation, how many moles of Ca(NO3)2 will be…

A: Given: The reaction is as follows: 2HNO3+CaOH2→CaNO32+2H2O The number of molecules of…

Q: present

A: Dear student I have given answer to your question in the image format.

Q: Vitamin B12, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: Cyanocobalamin is vitamin B12 with molar mass of 1355.38 g/mol

Q: Consider the following chemical reaction HCl (aq)  + HgNO3 (aq) à Hg2Cl2 (s) + HNO3 (aq) If 20.0…

A: Given: Mass of HCl=20.0 g Mass of HgNO3=30.0 g Percentage yield=78.4% To find: Reagent in excess…

Q: Molar Mass Number of Representative Particle Mass Substance Number of moles (g/mol) (9) Particles

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Q: Be sure to answer all parts. Potassium is the second most abundant metal in the human body.…

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Q: 9- An unknown compound is composed of C, H, and O. A 0.1005 g sample of this compound is combusted,…

A: We have to predict the empirical formula of compound 0.1005 g sample, produces 0.2829 g of CO2,…

Q: Mass of 0.1 mole of methane is (a) 1.6 g (b) 0.1 g (c) 1g (d) 16 g

A: To find the mass of 0.1 mole of methane (CH4​), you need to know the molar mass of methane.The molar…

Q: Burning octane is: C8H16 + 12(O2)......8(CO2) + 8(H2O) How many grams of O2 would you require to…

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Q: Part a) Mr. Scholl likes to grow tomatoes in his backyard garden. Last year he grew a 6.27 × 10 to…

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Q: 4A. How many grams of potassium chloride are produced from... ...2.50 g of potassium and excess…

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Q: 2. Calculate the following, with proper number of significant figures: Molar mass of Al(CH3COO)3 is…

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Q: (d) 0.372 g of histamine, C.H.N, in 125 g of chloroform, CHCI,

A: Assuming that mole fraction is asked in the question.  Given data: Mass of solute = 0.372 g Mass of…

Q: What is the mass (in grams) of 3.2 x 1021 molecules of ibuprofen (C13H1802; molar mass 206.3 g/mol)?…

A: Given: The molar mass of ibuprofen = 206.3 g/mol We have to calculate the mass of 3.2×1021 molecules…

Q: 21     Ca (NO3)2 is ………………. ( soluble, insoluble ) salt.

A: Ca(NO3)2 is a salt of Ca(OH)2 (Strong base) and HNO3 (strong acid)

Q: 4. For each of the following chemical ........a. CH4(g) + O2(g) → CO2(g) + H2O(g)b. Al(s) + HCl(aq)…

A: (a)In a balanced equation number of atoms for every element and total change in the reaction are…