1-How do you determine the mass of a substance if you know the moles and molecular mass.

Q: 8. Determine the number of CH₂Cl2 molecules in 42.463 g of CH₂Cl₂. The molar mass of CH₂Cl2 is…

A: Avagadro's law states that 1.0 mole of any substance Avagadro number () of species.Number of moles =…

Q: A nuclear detector finds 80 atoms of oxygen-16 (15.999 amu), 60 atoms of oxygen-14 (13.999 amu), and…

A: A nuclear detector finds Isotope Atomic mass No of atoms detected oxygen-16  15.999 amu 80…

Q: How many moles of compound are in the sample?

A: 1 mole of compound is equal to 6.022* 10 raise to power 23 molecules.

Q: 16. A chemist has 2.50 grams of magnesium. How many grams of F2 molecules must a chemist have to…

A: Mass of magnesium = 2.50 g Molar mass of magnesium = 24.305 g/mol Molar mass of F2 = 38.0 g/mol Mass…

Q: Consider an alternate universe in which Nickel has a molar mass of 63.45 g/mole. Use this…

A: Step 1:Step 2:

Q: The principal components in air are oxygen, nitrogen, argon, and carbon dioxide. Air is…

A: The air is composed of 78% nitrogen gas, 21% oxygen gas, 0.93% Argon gas and 0.04% carbon dioxide…

Q: Please help me solve the following question, explain it and pls pls make sure everything is correct,…

A:

Q: Calculations involving Mass (e) The percentage of a particular element in a compound can be…

A: Given, mass of NaCl sample = 18.50 g mass of sodium (Na) in the sample = 7.28 g % composition of…

Q: Consider a sample of carbon tetrafluoride that contains 1.09 × 10²⁴ atoms of fluorine. 1.) Using…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: Results A1+B in 10 degree: Trial 1: it took 200.4 seconds to turn from clear to purple, trail 2: was…

A: To organize your data, we can create a table summarizing the time it took for each trial to turn…

Q: Determine the molecular formula of a compound that is made of 54.5 g of carbon, 9.1 g of hydrogen,…

A: The solution is as follows :

Q: The empirical formula of a compound O has no relation to the molecular formula. O can be used to…

A:

Q: Calculate the number of moles for each of the questions below. Use the space on the right to show…

A:

Q: (question not found in the book) Provided you are given a balanced chemical equation: Where do you…

A: Answer: Balancing of chemical equation is based on the law of conservation of mass which states that…

Q: 4. Find the mass of 3.66 mol of N2, nitrogen gas.

A:

Q: Sort the molecular . That is, select Group 1 next to all the compounds with the first empirical…

A: Here we are required to find compound which have same empirical formula.

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: Part D. A 28.50 g sample of a compound of carbon, sulfur, hydrogen, and combusted (burned). 35.25 g…

A:

Q: In a hands-on lab, you would determine the empirical formula of a compound containing aluminum &…

A: Given that the aluminum and sulfur react to form a compound. The compound contains 0.018 moles of…

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: Determine the empirical formula of a compound that is 49.5% 5.2 % H, 16,5% O and 28.9% N. Then…

A: Compound that is 49.5% C, 5.2 % H, 16,5% O and 28.9% N having actual molar mass of  194 g / mol.…

Q: Consider a 10.1 g sample of the compound cesium phosphate. a) What is the chemical formula for…

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

Q: a. How many moles of carbon tetrachloride are present in 3.10 x 1022 molecules of this compound?…

A: 1 mole = 6.022×1023 (Avogadro's number)  The mass of one mole of molecules of a substance is called…

Q: Which of the following is the correct definition of a mole A) the amount of a substance that…

A: Given  Which is correct = TO BE DETERMINED

Q: A compound is 7.7% (by mass) hydrogen and 92.7 % carbon. It has a molecular weight of 52 g/mole.…

A: Empirical formula are the formula which represent simplest ratio of an element present in a given…

Q: A flask contains 3.75 moles of hydrogen gas. How many hydrogen molecules are present in the flask?…

A: We are having 3.75 moles of hydrogen gas. Hydrogen gas exists as H2 molecule.

Q: 3.01 x 1023 molecules of sucrose is _ _ _ _ _ _ _ _ _ _ _ _ _ moles of sucrose.  Why don’t you need…

A: Given : Number of molecules of sucrose = 3.01 X 1023 molecules.

Q: Convert between mass and moles of an element. What amount of oxygen, in moles, does 49.8 g 0…

A: Given that, mass of O=49.8 g  molar mass of O= 16 g mol-1 moles of O=?

Q: 1) What will you use to find a mole-to-mole ratio and how will you use a mole-to-mole ratio? 2)…

A:

Q: How many moles of atoms are contained in each of the following? a.) 7.50 x 10^24 I2 Molecules b.)…

A:

Q: Consider a flask containing a 254 g sample of carbon dioxide? Determine (a) number of moles of…

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

Q: Suppose you have two samples that are equal in weight, 11.8 g Ti and 11.8 g Fe,O,. Calculate the…

A:

Q: If the molecular weight of the compound is 58.12 g / mol , what is the molecular formula of the…

A: We have to determine the chemical formula of the compound.

Q: Calculate the number of moles of the indicated substance for each of the following samples.…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.