Calculate the mass of diphosphorus pentoxide (P2O5) that contains a million (1.0x1023) oxygen atoms. Round to 4 sig figs.

Q: What is the molecular mass of iron (III) oxide (Fe2O3)? Enter your answer rounded to four sig figs,…

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Q: A compound is 47.35% carbon by mass, 10.60% hydrogen by mass and 42.05% oxygen by mass. What is the…

A: Calculating empirical formula.

Q: A250 mg sample of a compound containing carbon hydrogen, and oxygen underwent combustion producing…

A: Since you have posted multiple questions, we are entitled to answer the first only. a) Given: mass…

Q: Complete the table. Element Moles Mass Cr 0.00442 Fe 73.5 mg Ti 1.009 x 10-3 Hg 1.78 kg

A: Mole is represented by the symbol mol. It is unit of measurement of substance. Mass is defined as…

Q: Number of atoms of C in 14 moles of CH10 are: O 337.23x10^23 O 24.09x10^23 O 84.31x10^23 O…

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Q: Which oof the following sample contains the fewest number of hydrogen atoms? 2.0 mol H2O 1.5 mol…

A: Mole relation gives relationship between number of moles and number of atoms  1 mol = 6.022 × 1023…

Q: wnat is the empiracle formula og Compound that is 62.07. C, 10.47 and 27.5%. 0 by mass ?

A: C = 62.0 % H = 10.4 %  O = 27.5 %

Q: Wwhat is themassin grams of one mole of sulfur? (round to 3 sig figs)

A: The question is based on mole concept. we have to write mass of 1 mole of sulphur atoms.

Q: What is the mass percentage of carbon in C6H12O3? Express your answer as a percentage (i.e., out of…

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Q: many grams of hydra n atomic masses: C: 1 n: Avogadro's numbe r the numerical value

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Q: A 10 gram sample of NaCl will have the same percent composition (percent by mass) of Na and Cl than…

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Q: What is the percent composition of hydrogen in H2O? (Round your answer to 4 sig figs)

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Q: How many grams of CH3CO2C5H11 must be weighed out to provide 3.22 x 1023 atoms of H? When you input…

A: Mole in terms of particles : 1 mol = 6.022 x1023 particles  where particles =…

Q: One mole (molecular equivalent) of gold has a mass of 196.9655 g.  One mole of anything equals 6.022…

A: Given : Mass of gold (1 mole)= 196.9655 g  Diameter of gold = 3.58 × 10-10 m Block of gold of mass =…

Q: How many moles of carbon dioxide are present in 1.03x10^23  molecules of this compound?

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Q: a. calcium oxide b. potassium chloride c. mercury(I) oxide d. zinc fluoride e. barium hydroxide f.…

A: Note: As per our guidelines, we are supposed to answer only the first question (i.e. exercise 1).…

Q: - How many grams of oxygen is presentin5.764 X 102'molecules of carbon nonoxide? O None of the above…

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Q: What mass of ammonia gas (NH3) contains 2.8*10^24 hydrogen atoms?

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Q: Find the percentage of mass of sodium (Na) in Na2s if it is 32.1%  sulfur (s) by mass.

A: The percentage of mass of an element in a compound is calculated by the formula,

Q: How many grams of Al are in 7.23 x 10²* Al atoms? Enter your answer to the ones place,

A: Convert the number of atoms into moles by using Avogadro Number and then determine the mass in grams…

Q: Find the mass in grams of C3H8O (isopropyl alcohol) that would contain 5.44x10^25 C atoms.

A: The question is based on mole concept. We have to calculate mass of alcohol present in the given…

Q: This is the chemical formula for methyl acetate: (CH3),CO2. Calculate the mass percent of carbon in…

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Q: FIOW TTa ly How many grams of aluminum oxide (Al, O) are equal to 6.32 x 1023 formula units?

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Q: How many molecules are in 4.83×1020 H2O2?   I don't quite understand how to do these calculations. I…

A: Note: Hey there! Thank you for posting the question. Since the unit is not given, we have taken…

Q: Determine the number of molecules of ethanol( C 2 H 5 OH) in 47.0 g.

A: In the International System of Units, the mole (symbol: mol) is the unit of measurement for the…

Q: A 1.67 mg sample of a compound containing carbon, hydrogen, and oxygen underwent combustion…

A: Hi there, as there are multiple questions posted. We are answering the first question. If you need…

Q: Which of the following could be the empirical formula for a compound? O A. C6H1206 O B. CH3OH O C.…

A: The empirical formula is the simplest ratio of the elements present in the exact molecular formula.…

Q: f 37.0 g of MgSO4⋅7H2O is thoroughly heated, what mass of anhydrous magnesium sulfate will remain?…

A: On strong heating, water molecules get removed and turn hydrated salt into anhydrous salt.The…

Q: 125 grams of sugar (C12H22011) is _ mole? Select an answer and submit. For keyboard navigation, use…

A: The given data is as follows: The mass of the sugar = 125 g The moles of sugar = ? To calculate the…

Q: If a sample of ethanol has a mass of 1.34 x 104 mg, d) How many C atoms are in the sample? e) How…

A: Stoichiometry involves the calculation of concentration of solutions in the given conditions of…

Q: You have a 125-g sample of one of these substances. You determine that it is made of 16.7 g H, 75.0…

A: A chemical compound often comprises the same elements in very same compositions by mass, according…

Q: How many kilograms of AICI3 can be made from 150 kg of chlorine

A: The balance chemical equation for reaction of Al with with Cl2 gas is as follow…

Q: This is CCl4 with a molecular weight of 119. On a mass basis what percent of the material is…

A: The molecular weight of CHCl3 is 119.38 gmol-1 and that of CCl4 is 153.82 gmol-1 .

Q: Number of atoms of Carbon in 18 moles of C4H10 are: 433.58x10^23 7.48x10^23 O 108.40x10^23…

A: The number of moles of a compound can be obtained by Avogadro's number. It can be calculated as…

Q: This is the chemical formula for hexanal: CH3(CH2),CHO. Calculate the mass percent of carbon in…

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Q: Calculate the mass of each sample, express your answer with the appropriate units. 14.7 mol HNO2…

A: 1 mole = 6.022×1023 [Avogadro's number] The mass of one mole of molecules of a substance is known as…

Q: How many oxygen atoms are in 23 molecules of finite oven tetroxide, N2O4

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Q: How many molecules of CH4 are there in a 218.4 gram sample of CH4 ?

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Q: 3. Consider the equ: Moles: C8H14 Masses: C8H14

A: First convert mass into mole by dividing molarity mass of H2O  Then use mole-mole relationship…

Q: Calculate the mass of nickel that could be obtained from 3.45x1025 f. units of Nickel (III) oxide.

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Q: Calculate the mass (in g) of each sample. 5.94x1020 SO3 molecules

A: Given: 5.94*1020 SO3 molecules

Q: You are given 1.0g samples of Iron (Fe), Silicon (Si), and Lithium (Li). Which of the three samples…

A: Applying mole concept and avogadro concept.

Q: Calculate the percent oxygen by mass in disilicon trioxide(Si2O3) to 3 significant figures.

A: Molar mass of O = 15.999 g/mol.Molar mass of Si2O3 = 104.168 g/mol.

Q: How many of the indicated atoms are represented by eachchemical formula: (a) carbon atoms in…

A: The number of indicated atoms present in each chemical formula are:

Q: What is the molar mass (g/mole) of cream of tartar (KHC4H4O6)?

A: The compound given is KHC4H4O6  Hence each molecule of KHC4H4O6 has  1) 1 Atom of K with atomic mass…

Q: What is the sum of the masses of 1 Fe atom + 2 Cl atoms? Enter your answer rounded to four sig figs,…

A: Given : To determine the sum of the masses of 1Fe atom + 2 Cl atoms

Q: What is the mass percent of chlorine in NH4Cl?

A: First, find the total mass of NH4Cl.NH4Cl = 54g/mol

Q: ? + {H → 15 ← Oci 8 GT 8 15N+?

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Q: Ammonium nitrate (NH4NO3), a common fertilizer, id 35.0% nitrogen by mass. How much ammonium nitrate…

A: We have to calculate the amount of Ammonium Nitrate.

Q: How many grams are in 2.0 x 1044 atoms of C? Enter your answer rounded to four sig figs, without…

A: 1 mole of any substance contains 6.022×1023 1 mole of any substance is the molar masa of that…