A sample is marked as containing 47.9 percent calcium carbonate by mass. How many grams of calcium carbonate are contained in 58.9 grams of the sample? How many grams of the sample above would contain 15.1 grams of calcium carbonate ?

Q: A 3.4x10-6g sample is knowt ocontain 4.67 x1016 molecules. What is this compound.  A CH4 B CO2 C…

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Q: A student obtains 50.00 grams of calcium hydroxide.  Determine the number of hydroxide ions present…

A: The chemical formula of calcium hydroxide is Ca(OH)2. One molecule or unit of it contains one…

Q: Determine the mass in grams of 5.28 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given, Number of barium atoms =5.28×1021 atomsmass of one mole of barium =137.33 gwe are asked to…

Q: How many molecules are in each sample? 66.3 g N2 Express your answer using three significant…

A: The number of molecules of N2 present in 66.3 g of N2 sample is

Q: A mixture contains 34.5% A, 25.8% B, the remainder being component C. If you have 22.151 g of this…

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Q: If a certain mixture contains 29.3027% water, how many grams of water are contained in a 12.2576…

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Q: calculate the percent of water in the copper (II) sulfate n hydrate by mass. Pentahydrate mass=…

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Q: Both diamond and graphite are composed of carbon. How many carbon atoms are found in a 50.0 μg…

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Q: Analysis of a 29.1 g sample of water revealed a mass percent for lead of 4.35%. Calculate the number…

A: Mass percent of lead is equal to the mass of lead divided by the mass of water multiplied by 100.

Q: Compound X2Z contains 32.2% X by mass. What mass of the compound contains 36.7 g X?

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Q: Determine which of the following contains the greatest mass of aluminum: 122 g of AlPO4, 266 g of…

A: The compound containing the highest amount of a particular element can be found using the percentage…

Q: A lab requires the use of 76.6 g of ammonium oxide. Determine the number of cations in the sample…

A: Given data,mass of ammonium oxide=76.6gWe know,1 mol of substance have 6.022×1023atoms

Q: Magnesium oxide contains 50.3 % magnesium by mass. Calculate the mass of magnesium oxide sample if…

A: Mass percent of an element expressed as the percentage ratio of mass of an element to the mass of a…

Q: sample of calcium nitride has a mass of 6.78g. How many particles does it contain?  round to 2…

A: Given Calcium nitrate mass 6.78 g Calcium nitrate  molecule formula = Ca3N2 Number of particle = ?

Q: A chemist has two different gasohol mixtures available. One contains 20% alcohol and the other 12%…

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Q: Please help with question seven show how to do it on the bored need to find mass and grams in each…

A: To solve this problem we will use the following relations  6.022 × 1023 atoms of N = 1.0 mol of N…

Q: A compound containing nitrogen and oxygen is found to contain 1.52 g of nitrogen and 3.47 g of…

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Q: Calculate the number of H ions in 0.468 g of MgH2. Be sure your answer has the correct number of…

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Q: How many grams of zinc will contain the same number of atoms as 24.6 g of copper? Express your…

A: Given weight = 24.6 g of copper

Q: A substance has a molecular mass of 143151 u. Find the mass of one molecule of this substance.

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

Q: Sylvanite is a mineral that contains 28.0% gold by mass How much sylvanite would you need to dig up…

A: Given : percentage by mass of gold in sylvanite = 28.0 % And mass of gold = 87.0 g

Q: How many grams of carbon are in 69.36 g of octane?

A: Molar mass of Octane(C8H18) is 114.23 g/mol One molecule of Octane contains 8 atoms of Carbon Molar…

Q: What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is…

A: w/w % =( mass of solute(g)/mass of solution(g))*100

Q: Enter your answer in the provided box. Calculate the number of grams of Al in 266 g of Al₂O3. g

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Thus,

Q: How many carbon atoms are in 53.62 grams of nonane.

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Q: The chemical formula for the C17H14F3N3O₂S. 0.0937 moles? anti-inflammatory drug celebrex is What is…

A: Given : moles = 0.0937 mole  Mass = mole × molar mass

Q: What is the percent by mass of carbon

A: Percent by mass = (mass of C/total mass of compound) × 100%

Q: Calculate the mass percentage of oxygen in the organic molecule whose line structure is shown below.…

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Q: 325.2 g sample contains 42.3% NaCl. How many grams of NaCl are in the sample?

A: Mass of the solution is = 325.2 g The concentration of the solution is = 42.3 % NaCl Mass of NaCl in…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

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

Q: A compound that contains only copper and chlorine contains 2.363 g copper and 2.637 g chlorine. What…

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Q: a 10.00 g sample of water contains 11.19 H by mass. What would be the percent H in a 20.00 g sample…

A: The objective of the question is to find out the percentage of Hydrogen (H) in a 20.00 g sample of…

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: Analysis of a 39.8 g sample of water revealed a mass percent for lead of 4.87%. Calculate the number…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: How many formula units of NaCl are in 60.0 grams of NaCl

A: Given mass of NaCl = 60.00 g  Molecular mass of NaCl = 23 g/mol + 35.5 g/mol  = 58.5 g/mol

Q: Calculate the number of LiLi atoms in 8.5 moles of LiLi.   Express your answer using two significant…

A: Answer:- This question is answered by using the simple concept of calculation of number of atoms…

Q: If 21.4 g of aluminum is reacted with 91.3 g of Fe2O3, the prodücts will be Al2O3 and iron. What…

A: Limiting reagent: In a chemical reaction, the reagent that totally consumed is known as a limiting…

Q: A 15.6 g sample of magnesium carbonate contains 3.2 g of magnesium. What is the percent Magnesium in…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: The formula for alum has 1 Al. How many units alum could be made from 7 Al atoms? Answer with a…

A: The molecular formula of alum is K2(SO4)·Al2(SO4)3·24H2O or KAl(SO4)2·12H2O

Q: What is the molar mass of the following compound? Include the mass to 2 decimal points without…

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Q: A sample of sodium oxide has a mass of 123.88g. How many particles does it contain?

A: Given, mass of sodium oxide = 123.88 g we know, molar mass of sodium oxide (Na2O) = 61.9 g/mol…

Q: How many molecules are in each sample? 19 g C6H12O6 Express your answer using two significant…

A: we have to calculate the number of molecules in 19g of C6H12O6

Q: An analytical chemist measures the amount of Elements E, and E₂ in four samples of an unknown…

A: •Given:-

Q: The amounts of two elements X and Y in three samples of an unknown substance are as follows: 10.0 g…

A: The objective of the question is to identify the substance as mixture, compound or an element.

Q: A mothball, composed of naphthalene (C10 H8 ), has a mass of 1.50 g. Part A How many naphthalene…

A: 1 mole of any atom or molecule contains Avogadro's number of atoms or molecules. Avogadro's number =…

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".