19. How many grams does 3.5 x 1025 molecules of H2SO4 weigh?   Group of answer choices a)  5.7 X 10^3 grams b)  58 moles c)  98.086 g d)  3.43 x 10^27 g

Q: How is the mass percent of elements in a compund different for a 1.0-g sample versus a 100.-g sample…

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Q: Which of the following could only be an empirical formula? N2H4 N2O4 .N2H6. N2O5

A: Empirical formula of a compound is defined as the formula of a chemical compound in which atoms are…

Q: 41. Calculate the number of moles of carbon atoms present in each of the following samples. a. 1.271…

A:

Q: 3.) Calculate the moles of KHP in flask #3. grams KHP Molar Mass of KHP (АЗ) 204.22 g/mol moles KHP…

A: Moles - One mole means 6.022 x 1023 number of that compound.  It is found that the molecular mass…

Q: Without using a calculator, arrange the samples in order of increasing numbers of carbon atoms.…

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Q: 19)Consider the unbalanced chemical equation below. How many grams of CO2 can you produce from 5.33…

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Q: un o 8u described in this laboratory. After heating, the sample is found to weigh 2.245 grams. How…

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Q: Determine the number of sulfur present in each of the the following quantities. a. 3.01 x 10^23 S2O…

A: a) Given : Number of S2O molecules = 3.01 X 1023 molecules. Since each molecule of S2O contains 2 S…

Q: 4. One mole is equivalent to a. 3.75 g Hydrogen c. 16 g Oxygen b. 14 g Carbon d. 190 g Gold 5. What…

A: 4) Calculate the number of moles of each option-

Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

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Q: How many moles of Hydrogen do you have you have 5.68 x 10 ^ 24 Hydrogen atoms? a)  .9432 x 10 ^-1…

A: 1 mole hydrogen atoms contains 6.023 x 1023 atoms of hydrogen.

Q: Given 6Li + N2 0 2 Lİ3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

A: 6Li + N2 = 2Li3N  Atomic mass of Li is 6.94 g. Molar mass of Li3N is [ (3×6.94)+14] = 34.83 g. 2…

Q: Question is attached

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

Q: Given 4.08 X 1023 molecules of A, the number of moles of A is calculated as: O 4.08*10^-23/(6.022) O…

A:

Q: How many oxygen atoms are present in 3,0 x 1023 molecules of Ca(NO3)2?   A. 6.0 x 1023   B. 1.5…

A: 1 molecule of Ca(NO3)2 have 6 oxygen atoms as NO3 have 3 oxygens and (NO3)2 will have 3 x 2 = 6…

Q: 39. Calculate the number of molecules present in each of the following samples. a. 4.75 mmol of…

A: To solve this problem we have to calculate the number of molecules of the given sample .

Q: 2. Calculate number of molecules in 2.33 g CH6. molar masses: C = 12.01 g/ mole and H = 1.008 g/…

A: Given: Mass of C6H6 = 2.33 g.

Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

A:

Q: What mass of carbon dioxide. CO2. contains the same number of molecules as 3.00 g of…

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Q: Convert 5.17 x 10-22 grams of X5Z2 into molecules/formula units of the same compound. (Assume that…

A: Mass of X5Z2 =5.17 x 10-22 g Molar mass of X =38.46 g/mol Molar mass of Z= 6.17  g/mol Molar mass of…

Q: 20. How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F=19.00 g/mole 1.01 g 0.992…

A:

Q: Given the unbalanced chemical equation, C5H12(l) + O2(g)  →  CO(g) + H2O(l), which one of the…

A: The balanced chemical equation can be written as follows-

Q: Calculate the number of moles in the following quantities: a.)3.12 g NaHCO3 b.)570 mg ZnCl2 c.)8.9…

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Q: O 3x 6.02 x 1023, QUESTION 5 How many H20 molecules are there in 3 moles of H20 sample? 6.02 x 1023…

A: Given that, Moles of H2O=3 moles then,

Q: 4. An 8.00 gram sample of the hydrated salt, CoCl2 • X H2O was thermally decomposed into anhydrous…

A: The question is based on the concept of reaction stoichiometry. We have  to calculate mole ratio of…

Q: . How many moles of Al(C 2 H 3 O 2 ) 3 contain 19mol O ? 6. Determine the % composition by mass of…

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Q: 1. N2 + 3H2 → 2NH3 How many moles of hydrogen, H2, are needed to react with 2.0 moles of nitrogen,…

A: Given reaction: According to the reaction: 1 mole of nitrogen reacts with 3 moles of hydrogen to…

Q: Calculate mass of phosphorous atoms in 117 g of P2O5. M(P2O5) = 284 g/mol; M(P) = 31 g/mol Answer:…

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Q: How many moles of copper are equivalent to 3.44 x 10^23 atoms of coppe

A: Mol also written as mole is a unit to measure amount of substance present.  For an element 1 mol…

Q: Given 6Li + N2 0 2 LI3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

A: As per our company guidelines we are supposed to answer only one question. kindly repost other…

Q: 1: The empirical formula of hydrocarbon that contains 18.4% H and 81.6% C by mass is? B) CH3 2: What…

A: Balanced chemical equation are those in which  number of atoms on left hand side and right hand side…

Q: e you have two samples that are equal in weight, 19.3g Ag and 19.3 g Al2O3 . Calculate the number of…

A: A Moles is defined as the mass of the substance which consists of the equal quantity of basic units.…

Q: Convert 2.5 moles of silver to atoms. O 1.51x1024 atoms 4.02x1025 atoms O 7.38x1024 atoms 7.51x1023…

A: Given, Moles of silver = 2.5 moles  Conversion of 2.5 moles of silver to atoms = ? Note: 1 mole of…

Q: 2. How many grams of chocolate are there in 84.0 X 102 molecules of chocolate, C,H,N,0,?…

A: To determine the grams of chocolate in 84.0×1022 molecules of chocolate C7H8N4O2

Q: 2. Convert 0.34 moles NaOH to grams. A) 2.04 x 1023 C) 6.8 B) 13.6 D) 0.0085 3. Convert 0.23 moles…

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

Q: BaCl2 + 2AgNO3->2AgCl + Ba(NO3)2   How many moles of silver chloride are produced from 4.56 moles…

A: Given reaction is, BaCl2 + 2AgNO3----->2AgCl + Ba(NO3)2 Moles of barium chloride- 4.56 mol

Q: if you start with 0.036g CH3NH2, how many grams of carbon dioxide can you make? CH3NH2 (g) +   O2…

A: The given reaction is: CH3NH2(g)+O2(g)→CO2(g)+H2O(g)+N2(g) The reaction after balancing will be:…

Q: A mole of the water is: 12.0000 g H2O one H20 molecule O 6.02 x 1023 g H2O 6.02 × 1023 H20 molecules…

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Q: Given the unbalanced chemical equation, C5H12(1) + O2(g) → CO(g) + H20(1), which one of the…

A: Balanced equation is the equation in which the atoms of the same kind in either side of the equation…

Q: What mass, in grams, of C2H2 is needed to form 210.4 g of CO2? Assume excess oxygen.  2C2H2(g) +…

A: Given: 2C2H2(g) + 5O2(g)  →  4CO2(g) + 2H2O(g) Mass of CO2 = 210.4 g To find: Mass of C2H2 Solution:…

Q: Siven the unbalanced chemical equation, C5H12(1) + O2(g) → CO(g) + H20(1), which one of the pllowing…

A: The reaction given is, => C5H12 (l) + O2 (g) -------> CO (g) + H2O (l)

Q: You have 3.52 × 10^25 molecules of water. Find the volume of this in milliliters. Water has a molar…

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

Q: Calculate the number of grams in 7.75 x 1014 moles of sodium chloride. A. 4.53 x 1016 g B. 4.53 x…

A: Given : Moles of sodium chloride=7.75 x 1014 mol The molar mass of sodium chloride= 58.44 g/mol The…

Q: calculate the molecules of carbon dioxide in this amount. A. 5.15 * 10^22 B. 3.56 * 10^23 C. 2.29…

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Q: 5.What is the percent by mass oxygen in (NH4)2HPO3 Group of answer choices a, 31.88 b, 48.46 c,…

A: Since you have posted multiple questions, we will solve only first question for you. If you want any…

Q: Calculate the number of moles of aluminum oxide in 6.83g Al2O3

A: Stoichiometry is mainly based on the calculation of moles and volumes. These two values are used to…

Q: 39. Calculate the number of molecules present in each of the following samples. a. 4.75 mmol of…

A: We know that for 1 mole of any chemical compound/species,there are Avogadro's number of molecules…

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".