Calculate the number of moles in each of the following masses: a. 64.1 g of aluminum b. 28.1 g of silicon c. 0.255 g of sulfur d. 850.5 g of zinc

Q: Determine the number of moles present in a 1000 g gold bar. Round off your answer to the nearest…

A: Mass of gold = 1000g We have to determine the no. of moles present in 1000g of gold bar.

Q: Calculate the number of moles of 1₂(s) formed when 12.4 mol of nitrogen triiodide are decomposed.…

A: A balanced chemical equation is the one that contains the same count of different types of atoms on…

Q: A compound contains iron and bromine. A sample of the compound contains 3 g of iron and 11.39 g of…

A: A sample of the compound contains 3 g of iron and 11.39 g of bromine.  as mass is provided , we can…

Q: Part B How many grams of sodium oxide can be synthesized from 17.4 g of sodium? Assume that more…

A: Given:Mass of sodium(Na)=17.4 g

Q: 11. Sodium sulfate is used in the manufacture of detergents. a. Identify each of the component…

A: From the present of the atom present in a molecule we can calculate the empirical formula .

Q: Briona Bensha Grams/Moles Calculations Given the following, find the number of moles: 1) 30 grams of…

A:

Q: The average cup of coffee contains about 125 mg of caffeine, C3H10N O. Caffeine is also found in…

A: The chemical formula of caffeine = C8H10N4O2 Moles are calculated by the formula,       Moles=Given…

Q: you have 3.25 kg of water. How many moles of water do you have? the molar mass of water is 18.02…

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Q: Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction:…

A: Given: Mass of Al = 14.0 g Molar mass of Al = 26.98 g/mol

Q: Sodium sulfate is used in the manufacture of detergents.a. Identify each of the component elements…

A: a) The elements which are all present in sodium sulfate has to be given.

Q: Question attached

A: Given: Mass of potassium carbonate=53.9g Formula: No.of.Moles=Mass of the compoundMolar mass of the…

Q: A different experiment has a copper unknown which has two moles of copper for every one mole of…

A: Given : Mass percent of copper in the compound = 78.35 %  And there are 2 moles of copper for every…

Q: (a) Determine the mass of sodium metal that contains the same number of moles as 87.2 g of copper…

A: (a) Determine the mass of sodium metal that contains the same number of moles as 87.2 g of copper…

Q: Question attached

A: Mass of MgCl2 = 43.9 g Molar mass of MgCl2 = 95.211 g/mol

Q: 24 7. Aqueous silver nitrate reacts with solid aluminum to produce aqueous aluminum nitrate and…

A:

Q: A student measures out 12.1 grams of magnesium chloride. How many moles does he or she have?

A: Given Mass of magnesium chloride = 12.1 g Standard value  Molar mass of magnesium chloride…

Q: Use the References to access important values if needed for this question. amino acid glycine has…

A: The question is based on  mole concept. first we calculate number of atoms of glycine present in…

Q: Show all work for all parts of the question for full credit and use your units. Use 2 decimal places…

A: Interpretation -  For KNO3 ,  what is the molar mass - To determine the percentage composition in…

Q: A 20.03 g sample of a compound contains 6.39 g of potassium, K, 5.79 g of chlorine, Cl, and oxygen,…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: how to calculate moles

A: Calculation of molesFormula,moles = mass (g)/molar mass (g/mol)

Q: how many grams are in 0.658 mol of calcium phosphate [Ca3(PO4)2].

A: Molar mass is the mass of 1 mole of a substance.

Q: How many moles are present in 35.16 grams of X? (Assume that the molar mass of X is 18.42 grams per…

A: Mass of X = 35.16 grams Molar mass of X = 18.42 grams / mole

Q: the percent composition of a compound was determined to be 70% carbon, 6% hydrogen and 24% notrogen.…

A:

Q: pal: Predict the results of a chemical read Count: CH, is the chemical formula for me methane, how…

A:

Q: Nitrogen gas is reacting with Hydrogen gas to produce NH3. How many moles of hydrogen gas is…

A: 6.42 moles of hydrogen gas is required to produce 4.28 moles of NH3.

Q: The mass of water produced from 0.839 mol of ammonia

A: As given in the question- The reaction which leads to the formation of water using ammonia is the…

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: 108 grams of water is produced when toluene is burned. There are no carbon soot and carbon monoxide…

A: Answer: In combustion reaction, toluene is burned completely in presence of oxygen to form carbon…

Q: 47) Calcylate the percent listed first in the formulas by mass of element

A:

Q: According to the following reaction, how many moles of mercury(II) oxide are necessary to form 0.624…

A: Given :-  Mercury (II) oxide(s) → mercury(l) + oxygen(g)  Number of moles of oxygen = 0.624 mol  To…

Q: 11. A compound is found to contain 0.3335% iron. It is known that the compound contains 4 atoms of…

A: Number of Iron atoms present in the compound = 4 Mass % of Iron in the compound = 0.3335% Atomic…

Q: How many moles of argon are in 32.0 g of argon?   _______________________ mol

A: Given: Mass of argon = 32.0 g Molar mass of argon = 39.948 g/mol

Q: Calculate the number of CC atoms in 0.997 molmol of CC.

A: We know that the total number of atoms in 1mole of a substance is constant that is the avogadro's…

Q: A compound of bromine and fluorine is used to make UF6, which is an important chemical in processing…

A: Mass percentage of bromine is 58.37% Moles of bromine and flourine and emperical formula is…

Q: A) Calculate the percent of oxygen by mass in iron(III)oxide. B) Calculate the number of grams of…

A:

Q: 4. ocean water contains 3.4% sodium chloride by mass. How much salt can be obtained from 346.8 g of…

A: Given: Percentage of NaCl= 3.4% Mass of sea water= 346.8g To find: The mass of salt

Q: How many moles of argon are in 34.9 g of argon? mol

A:

Q: Propane gas, CHs, is the fuel source for gas grills and fire places. What is the molar mass of…

A: Introduction: The number of moles in any given sample can be estimated if the total mass of the…

Q: b.) Determine the empirical and molecular formulas for the given compound, which contains 72.41…

A: In the given question we have to determine the empherical formula and molecular formula of given…

Q: A 14.57 g sample of a compound contains 4.65 g of potassium, K, 4.22 g of chlorine, Cl, and oxygen,…

A:

Q: Calculate the number of moles of the given values 150.0 g sulfur

A: It is given that mass of Sulfur is 150.0 g. Molar mass of Sulfur is 32.07 g/mol

Q: The National Institute of Health (NIH) provides dietary recommendations for adults over various…

A:

Q: A standard number 2 pencil contains 3.0x10 grams of graphite (Formula: C). How many moles of…

A: Given : Mass of graphite i.e carbon = 3.0 X 10-4 g And molar mass of carbon = 12.011 g/mol.

Q: onvert to moles the mass of uric acid that is 0.3066 that causes gout and arthritis.

A: Number of moles of a substance can be obtained by dividing the mass by molar mass.

Q: How many grams are present in 17.82 moles of X? (Assume that the molar mass of X is 40.38 grams per…

A: Given, Molar mass of X = 40.38 g/mol Moles of X = 17.82 moles Mass of X = ?

Q: According to the following reaction, how many moles of mercury(II) oxide are necessary to form 0.457…

A: The given reaction is  2 HgO(2) -> 2Hg(1) + O2 (g)  0.457 mol of O2 is given

Q: A beaker is filled with 2.5 moles of sugar. How many sugar molecules are in the beaker?

A: 1 mole of any compound consist of 6.022 x 1023 molecules.

Q: Given 10 moles of H3O how many grams of this substance do I have?

A:

Q: How to convert grams to moles, and moles to grams

A: Step : 1           How to convert grams to moles, and moles to grams.

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.