Show all steps in the answers for the following questions using significant figures in the calculations. a. Calculate the number of moles in 8.57g of pure carbon. B. Use the information above and calculate the number of atoms of carbon in the sample. C. Find the number of moles in 4.237g of NH4CL.

Q: Determine the number of molecules in 23.6 grams of CH₄.

A: Given : Mass of CH4 = 23.6 g

Q: How many moles (of molecules or formula units) are in each sample? 20.0 kg Fe (NO3) 2 Express your…

A: Given , mass of Fe(NO3)2 = 20.0 Kg = 20,000g Molar mass of Fe(NO3)2 = 179.85 g/mol To find the…

Q: A sample containing 15.23 moles of calcium fluoride is equal to how many gram

A: A gram is a scientific unit of mass that was defined as the actual weight of a volume of distilled…

Q: 10. Make the following conversions: (a) 28.4 g S to moles S (b) 2.50 kg Nacl to moles Nacl (c) 42.2…

A: Number of moles = mass ÷ molar mass

Q: Calculate the percent composition by mass for CaCO3. Use the molecular weights to two decimal places…

A: Given, The percent composition by mass for CaCO3 is: a) %C = b) %Ca = c) %O =

Q: A sample of propane, C3H8, contains 15.0 molesmoles of carbon atoms. How many total moles of atoms…

A: Provided molecular formula of compound (propane)= C3H8  Provided moles of carbon atoms=15 moles.…

Q: Part B: NazCO; Reaction: 1. Determine the experimental mole-to-mole ratio of NazCO3 to NaCl from…

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

Q: Caproic acid, which is responsible for the foul odor of dirty socks, is composed of C, H, and O…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Calculations Using the Mole Learning Goal: 2.32x1023 13C atoms To learn how to convert grams to…

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Q: (a) Write “true” or “false” for each statement. (a) A mole ofhorses contain a mole of horse legs.…

A: The number of moles is given by mass divided by molar mass. One mole of each substance contains the…

Q: Show all steps in the answers for the following questions and use significant figures in the…

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Q: This is the chemical formula for carvone (the chemical that gives spearmint its flavor): C10H14O An…

A: Carvone has folloing molecular formula C10H14O So, 10 moles Carbon contains per mol of oxygen.

Q: Q2 Calculate the moles of magnesium in 1.25 grms of magnesium. Q2a.Use the mole of magnesium in…

A: Moles from the given mass can be determined by using the formula as; Moles=Given massMolecular mass…

Q: Use the References to access important values it needed for a. How many ATOMS of carbon are present…

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

Q: A compound contains Carbon, Oxygen, and Fluorine. Determine the empirical formula (CXOYFZ) by…

A: First find the no. of moles of carbon atom by dividing with Avogadro no.

Q: 20. Determine the molar mass of NH3 and H2O. Then determine the number of moles of H2O in 6.01grams.…

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Q: How many moles of NO, are in 9.1x1024 molecules of NO2? Round your answer to 1 decimal place. Your…

A: The number of molecules = 9.1 × 1024

Q: Show all steps in the answers for the following questions and use significant figures in the…

A: * Moles = Mass / molar mass  * 1 mol = 6.022 × 10²³ atoms or molecules * Molar mass of Carbon = 12…

Q: How many moles of iron are in (3.7x10^36) atoms of iron (Fe)? For Avogadro's number use:  6.022 x…

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Q: Suppose that a compound containing copper and chlorine contains 0.01139 moles of copper and 0.03813…

A: According to the question:  moles of copper in compound = 0.01139 moles moles of chlorine in…

Q: For a 34.8-gram sample of SO3, determine: A) how many moles of SO3? B) how many molecules of SO3? C)…

A: Given :-  Mass of SO3 = 34.8 g  To calculate :-  Number of moles of SO3  Number of molecules of SO3…

Q: Determine the correct mole ratios, yes, you will select more than one, for the following balanced…

A: By the help of stoichiometric coefficient we can find the amount of unknown substance by the help of…

Q: A compound containing copper and chlorine contains 0.01026 moles of copper and 0.01721 moles of…

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Q: A sample contains 27.1 g of calcium oxide. How many moles of calcium oxide are in the sample ? a.…

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

Q: A compound contains 0.01293 moles of V and 0.03325 moles of Cl.  Calculate the ratio of moles of Cl…

A: Record the given data, The number of moles of compound V = 0.01293 moles The number of moles of…

Q: 5. Determine the number of moles of the compound and determine the number of moles of each type of…

A: Applying concept of mole calculation.

Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

A: NOTE : The formula given by you in question for nickel tetracarbonyl as NiCO4 is incorrect  The…

Q: A friend asks you to help her find the percent composition by mass of ethane (C,H). She says that…

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Q: In one experiment, a student used 0.21 g of aluminum and excess hydrochloric acid. a. Calculate the…

A: Given that 0.21 g aluminium react with excess hydrochloric acid.

Q: Determine the number of atoms in 31.0 grams of calcium, Ca. (The mass of one mole of calcium is…

A: Interpretation-  To determine the number of atoms in 31.0 g of calcium ( Ca ) molar mass is already…

Q: Determine the number of molecules in 31.6 grams of CCl4

A:

Q: Radioactive sodium pertechnetate is used as a brain-scanning agent in medicine. Quantitative…

A: Given : Mass of compound = 0.896 g Mass of Na = 0.111g Mass of Tc = 0.477 g

Q: Determine the number of atoms in 30.0 g of As.

A: 1 mole of a substance contains Avogadro's number of molecules.

Q: A compound contains 0.01238 moles of V and 0.02341 moles of Cl. Calculate the ratio of moles of Cl /…

A: A compound contains 0.01238 moles of V and 0.02341 moles of Cl. We have to calculate the ratio of…

Q: Complete combustion of 7.70 g of a hydrocarbon produced 23.7 g of CO2 and 10.9 g of H2O. What is the…

A:

Q: All you know about two unknown compounds is that they have the same percent by mass of carbon. With…

A: The compounds are made up of the combination of different elements. Any compound is not formed by…

Q: How many moles are equal to 1.20 x 1024 atoms of sulfur (S)? Round to 2 decimal places.   a 0.20  b…

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Q: How many moles of aluminum are in an aluminum block that meausres 3.00cm x 3.00 cm x 5.00cm? The…

A: Density: It is a ratio of mass of an object to its volume. Its SI unit is g / cm3. It creases with…

Q: Show all steps in the answers for the following questions and use significant figures in the…

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Q: What is the mass of 22.8 moles of copper atoms? Round your answer to the nearest hundredth. Be sure…

A: Given : Moles of copper = 22.8 mol Atomic mass of Cu = 63.546 g/mol

Q: How many mole of C13H18O2 contain 7.4x10'25 atoms of C

A: The given compound is C13H18O2. The question is 7.4 * 10^25 atoms of Carbon are present in how many…

Q: 30. A sample of a compound containing only S and Cl contains 2.72g S and 6.04g Cl. Another sample of…

A: given data = a sample compound only containing S and Cl S = 2.72 g, Cl = 6.04 g another sample of…

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

A: Interpretation -  To determine the number of moles in each sample - 38.2g of sodium chloride  36.5g…

Q: 1. Vitamin C has the formula C,H¸Og. Calculate the number of vitamin C molecules present in a 0.250…

A: The molecular formula of the vitamin C is = C6H8O6 The mass of vitamin C is = 0.250 g The number of…

Q: Determine the mass in grams of 5.15 × 10²¹ atoms of chromium. (The mass of one mole of chromium is…

A: Molar mass of any substance is the mass of one mole of substance and one mole of substance contains…

Q: please answer this question correctly. dont just give an answer, please include brackets,…

A: A mole is a unit of measurement for atoms, molecules, and ions just like other units are there for…

Q: And set up the mole ratio of O2 to C4H9OH =    CO2 to O2= Confused on how to do the ratios.

A: mole ratios is the ratio of moles of one component to the moles of another component in a balanced…

Q: Determine the mass of 4.6 moles of ammonium chloride

A: Given, Ammonium Chloride  Formula :: NH4Cl

Q: The following figure represents a molecule of Saccharin, which is commonly used as an artificia…

A: Number of moles of the given substance is the ratio of mass of the substance to the molar mass of…

Q: 1. What is wrong with each of the following setups? NOTE: There may be nothing wrong or multiple…

A: