7. Calculate the molar mass of each of the following compounds. a. Fe,O,, iron(III) oxide b. BCl, boron trichloride c. CoHgO6, ascorbic acid (vitamin C) 8. Calculate the molar masses (in grams per mole) of each of the following. a. cane sugar, C12H2½0¡1 b. laughing gas, N¿O c. vitamin A, C20H300 9. Calculate the molar mass of each these compounds and the mass percentage of each element. a. PbS, lead(II) sulfide, galena b. C,H6, ethane, a hydrocarbon fuel c. CH;COOH, acetic acid, an important ingredient in vinegar d. NH¼NO3, ammonium nitrate, a fertilizer

Q: How do you find the number of moles of phosphorus in a 150.00 gram sample of Mg3(PO4)2?I've been…

A:

Q: Sait efflorescent A hydrated salt is 21% water (anhydrous formula weight is 136.1). a. How many…

A: Some chemical compounds on crystallization from water solution produce a crystal that contains water…

Q: 1. How many ATOMS of boron are present in 1.31 moles of boron trifluoride ? atoms of boron. 2. How…

A:

Q: A.How many grams of chromium(III) oxide, , are present in 2.46 moles of this compound? grams_____…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: Our bodies synthesize protein from amino acids. One of these amino acids is glycine, which has the…

A: First calculate the molecular mass of the compound from given molecular formula.

Q: 1. a.) How many moles of sodium in 0.46g of sodium? b.) How many atoms of sodium are in 0.46g of…

A: The number of moles (n) of a substance can be calculated as: n=Given massMolar mass······(1) One…

Q: One carrot may contain 0.63 mg of vitamin A (C20H30O). How many moles of vitamin A is this? x 10 mol…

A: Molar mass of Vitamin A = 286g/mol Mass of vitamin A= 0.63mg=0.00063g Moles= (0.00063/286) mol=…

Q: The compound butyric acid gives rancid butter its characteristics odor. A). What is the molecular…

A: Hey, since there are multiple sub parts questions posted, we will answer first three questions. If…

Q: Lab 5. Counting Molecules 1. Fill in the table C12H22011 NH,CI Mass (g) 1.0015 1.0238 Molar Mass…

A:

Q: Leucine is an amino acid with the formula C,H,NO,. Determine the number of moles of carbon in 60.08…

A:

Q: D are products. How many moles of D can be produced with 5.98 moles of A being completely reacted?…

A: Given data: Moles of A completely reacted=5.98 mol. Chemical reaction: 3 A + 2 B → 4 C + 2 D To…

Q: Which sample of magnesium chloride, MgCl2, contains the same number of moles as 69.6g of potassium…

A: Given the mass of potassium sulfate K2SO4 =69.6 gwe are asked to calculate the mass of  magnesium…

Q: 174. When M,S3(s) is heated in air, it is converted to MO2(s). A 4.000-g sample of M2S3(s) shows a…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: 1) How many atoms does each molecule of H,SO, has? A) 8 B) 6 C) 7 2) A compound of carbon and…

A: we have to tell which option is correct from given choices of options by telling  number of atoms in…

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: Florasulam is an herbicide with the chemical formula C12H8F3N5O3S. Answer the questions below…

A:

Q: Glycine is an amino acid with the formula C, H, NO,. Determine the number of moles of carbon in…

A: Given  Formula of Glycine = C2H5NO2 Mass of glycine  = 62.83 gram  Number of mole of carbon = ?

Q: casbon 35.) Calaulate He grams. muss in he l,25 motes of aluminur chloride b. 3.35 moles of sodium…

A: multiplication of moles with molar mass will give the mass of that compound or molecules. As per…

Q: Which has the greater number of particles, 6.022x1023 N, molecules or 28.02 g of N, molecules?…

A:

Q: How many grams would 8.6 moles of sulfuric acid (H2SO4) weigh? Question 10 5.2E23 molcculcs of hand…

A: The given data contains, number of moles = 8.6 moles.

Q: A compound containing carbon, oxygen, and hydrogen was found to have an empirical formula of CH,0.…

A: Empirical Formula is CH2O Formula mass of CH2O = 1 x Atomic mass of C + 2 x Atomic mass of H + 1x…

Q: what’s the molecular formula?

A:

Q: 37 x 1019 molecules CH3NH2 contains how many moles of carbon?  CH3NH2 (g) +   O2 (g) →   CO2 (g) +…

A: Since given molecular formula of compound is CH3NH2 which shows that it has one caron atom or one…

Q: II) Avogadro's number, Moles and Molar Mass a) How many neon atoms are in 4.48 mol of neon? b) What…

A: I mole of a substance is equal to 6.023 X 1023 units of that substance (atoms, ions or Molecules ) .…

Q: How much C is present in 10.0 g of CO,? mass of C: How much H is present in 4.10 g of H,O? mass of…

A: 1. Mass of CO2 = 10.0 g We need to determine mass of C.  2. Mass of H2O = 4.10 g  We need to find…

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 particular oral contraceptive contains 0.0391 mg ethynyl estradiol in each pill. The formula of…

A:

Q: 5. Which statement is NOT true? a. One mole of a substance contains a fixed number of particles. b.…

A:

Q: 1. a. How many grams of barium nitrite, , are present in 4.62 moles of this compound? grams b. How…

A: 1. a) Given : Moles of compound barium nitrite i.e Ba(NO2)2 = 4.62 mol.

Q: How many atoms of flourine are in 5.6×10^23 molecules of MgF2?

A: Given  Number of molecule of MgF2   =  5.6 × 1023 Number of atom of fluorine      =   ?

Q: Calculate the number of molecules in each of the following samples. (Remember from class that the…

A:

Q: 1. How many hydrogen ions (H+) are in a mole? 2. What is the mass of one mole of H+ ions, in grams?,…

A: Introduction Always remember that 1 mole = 6.022 x 1023 atoms or molecules or ions. The correct…

Q: If there are 2.37 moles Fe203 then how many moles of Fe and O2 are there ? if there are 11.11 moles…

A: Given, 1) Moles of Fe2O3 = 2.37 moles Moles of Fe = ? Moles of O2 = ? 2) Moles of Fe2O3 = 11.11…

Q: 3. The average atomic mass of an atom is expressed in c. g/mol d. moles a. grams b. amu 4. Which…

A: The answer to the given question is as follows------------- The number of moles (n) = Mass (W)/Molar…

Q: How many molecules of C,H,, are present in 385.42g of C,H,? 10 If you have 7.24 x 10 molecules of…

A:

Q: 1. How many GRAMS of manganese(II) oxide are present in 2.43 moles of this compound ? ??? grams.…

A:

Q: 1. How many GRAMS of nitrogen are present in 4.54 moles of nitrogen monoxide ? grams. moles. 2. How…

A: Given, moles of nitrogen monoxide(NO) = 4.54 moles we can see that 1 moles of NO contains 1 moles of…

Q: 1. a) How many moles of sodium are in 23.0 g of sodium? b) How many atoms of oxygen are in one…

A:

Q: How many oxygen atoms are in 1.50 mol of SO3?

A: Mole is a unit of quantity of substance. One mol of a substance contains 6.022 x 1023 units of that…

Q: A hydrate of cobalt(II) chloride had a mass of 165.88 g before heating. After heating, the anhydrous…

A: Mass of CoCl2 before heating (hydrated) = 165.88 g Mass of CoCl2 after heating (anhydrous) = 130.9 g…

Q: A particular oral contraceptive contains 0.0445 mg ethynyl estradiol in each pill. The formula of…

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Q: The gemstone tanzanite was first discovered in Tanzania in 1967. Like other gemstones, it contains…

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Q: How many grams of hydrogen gas are formed by the reaction of 3.457 g of aluminum with nitric acid?…

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Q: (c) 25.3 kg of magnesium carbonate, MgCO, compound mol Mg mol mol mol (d) 78.37 g of aluminum…

A: Calculate the moles of each compound and each atom ?

Q: How many moles of aluminum fluoride, AlF3, are present in a sample that contains 3.49 moles of…

A:

Q: How many ATOMS of hydrogen, are present in 4.53 moles of water, H2O? ____atoms of hydrogen How many…

A:

Q: The number of moles of H in three moles of copper(II) sulfate pentahydrate, CuSO45H2O, is a.  2   b.…

A: The given compound is copper(II) sulfate pentahydrate,

Q: Consider 68.9 g of Pb(SO4)2 to answer the following questions. a. How many moles of Pb(SO4)2 is…

A: Given mass of Pb(SO4)2 = 68.9 g

Q: 9. How many molecules are in 5 moles of water? How many molecules are in 20 moles of 02? How many…

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Q: Given the answers to the previous questions, please answer part c (find the empirical formula)

A: Empirical formula of a compound represents the proportion of the elements in a compound irrespective…

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.