How many water molecules does 9 grams of water ( H2O ) contain? a) 6.02X1023 b) 6.02X10-23 c) 3.01 X1023 d) 3.01X10-23 e) none of these

Q: 6) Chlorophyll has the formula Css H72 Mg N4 Os. How many grams of carbon are required to combine…

A: Given data Molecular formula of Chlorophyll : C55 H72 Mg N4 O5  Mass of Mg = 0.0011 g Atomic mass :…

Q: Calculate the molar mass of each substance. (show solution) H3PO4 CaCO3 (NH4)2SO4 C4H9O2

A: Molar mass means the masses of all the atoms in the moleculeadded together.

Q: How many formula units are there in 31 grams of beryllium iodide BeI2? (MW = 262.82 g/mol)

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Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

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Q: Terephthalic acid, used in the production of polyester fibers and films, contains 57.83% carbon,…

A: To determine the molecular formula of terephthalic acid, you can first find the empirical formula…

Q: of

A: moles= given mass /molecular mass We have 0.730 mole of CS2 Molecular mass =76.13g/mol Mass of CS2=…

Q: How many grams are in 5.32 x 10 molecules of CO ?

A: Number of molecules of CO2 = 5.32 x 1022 molecules.

Q: An unidentified ionic compound contains approximately 29.85 g sodium, 67.50 g chromium, and 72.67 g…

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Q: what do you have to do to convert from volume to moles ?  Answer Choices  molar mass(g) / 1mol 1…

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Q: How many moles of octane (C8H18) are in 1.5 g of octane? (Octane MW= 114 g/mol) and which describes…

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: Which of the following is included in all the conversion factors we've used in this unit so far? A.…

A: We have to find out which conversion factor is used in the given calculation.

Q: How many hydrogen ????? are there in 75.9 g of octane, C8H18

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Q: 1. How many grams of Cu2+ are present in 3.29 grams of copper(II) carbonate? 1.692 ]grams Cu2+. 2.…

A: Mass of copper (ii) carbonate = 3.29 g Mass of Cu+2 = 3.26 g Molar mass of copper (ii) carbonate =…

Q: 3) кон _KOH + H3PO: > K3PO4 + H20 4.677 grams of KOH makes how many grams of KgPO4?

A: 3) given reaction; 3KOH  +  1H3PO4  ------>  1K3PO4  + 3H2O Amount of KOH in the reaction = 4.677…

Q: What mass of SbF3 (179 g-mol-¹) is needed to produce 1.00 g of Freon-12, CCl₂F2 (molar mass = 121…

A: Here 3 moles CCl4 react with 2 moles SbF3 and as a product 3 moles CCl2F2 and 2 moles SbCl3 is…

Q: How many molecules of water, H2O, are present in 75.0 g of H2O? A) 7.53 E 24 molecules B 2.51 E 24…

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Q: 1) 5 molNa and 5 molBr2 Express your answer as a chemical formula.   2) 2.8 molNa and 2.4 molBr2…

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Q: FOLLOW-UP QUESTIONS (Show all your work) 1. A hydrated substance was found to have the following…

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Q: What is the number of moles in 432 g Ba(N03)2? A) 3.25 B) 0.605 C) 0.237 D) 1.65 E) 113,000

A: Answer 2: Introduction: mole: As per the international system of unit (SI) , mole is the unit of…

Q: For Practice 3.16: Determine the mass of oxygen in a 7.2 g sample of Al2(SO4)3. What is the molar…

A: Mass of sample of Al2(SO4)3 =7.2 gramWe need to calculate the mass of oxygen in 7.2 gram Al2(SO4)3…

Q: . The formula for ibuprofen is C3H1O2. How many moles of ibuprofen are present in 250.0-mg tablet?

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: 204.094. 2) How many N₂04 molecules are contained in 76.3 g N₂04? The molar mass of N204 is 92.02…

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Q: How many molecules are in each sample? 69.0 g N2 (Express your answer using three significant…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: What is thé mass percentage of C in codeine, C18H21NO3? Provide an answer to two decimal places.

A: Given : We have to calculate mass percentage of carbon in codeine.

Q: How many moles of water is 6.36 x 1022 molecules? No.of representative particles No. of moles = 6.02…

A: Given  Molecules of water = 6.36 x 1022 molecules

Q: How many zinc (Zn) atoms are contained in 5.16 moles of Zn? Is this the correct answer including the…

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Q: Vitamin C, an antioxidant present in citrus fruits, contains only C, H, and O. Combustion of 10.0 g…

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Q: Determine the mol H20/mol CaSO4 if you have the following data to two decimal places (MM H20 =18.02…

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Q: Find the Percent Compostion NaOH (NH4)2S N2S2 KMnO4 HCl Mg(NO3)2 Al2(SO4)3

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: Florasulam is an herbicide with the chemical formula C12H8F3N5O3S. Answer the questions below…

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Q: Writing Empirical Formulas from Chemical Formulas

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Q: a) Number of atoms found in 2.1 mol of N2 b) 1 mol of H2SO4 c) Scientific notation. *Write the…

A: To solve this problem we have to calculate the percentage of all the elements in Tylenol .

Q: Calculate the mass in grams of each sample. m = Submit Request Ans 4 Part C 5.1×1025 03 molecules

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Q: Psoralen, a compound found in giant hogweed, contains only C, H, and O. Combustion of 1.000 g of…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: How many molecules of CF, are in 38.4 grams? 38.4 g 88.0 g|6.02 x 1023 moles 1 mol | 1 molecule 38.4…

A: Given data:  Given mass of CF4 = 38.4 grams CF4 molar mass = 88.00 g/mol

Q: How many grams of sodium bicarbonate are in 4.5 moles of sodium bicarbonate (84.007 g/mole)? O 189.0…

A: Moles = mass/Molar mass

Q: Question 4 of 37 Determine the amount in grams of KCI that exists in 20.3 g of a solution that…

A: Weight of solution= 20.3 gm  %KCl by mass = 1.14 %

Q: Florasulam is an herbicide with the chemical formula C12H8F3N5O3S. Answer the questions below…

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Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A: