2. Alex has a big black tattoo of a teddy bear on their back. Iron (II, III) oxide was used as the tattoo ink and has the chemical formula Fe,O. a. What is the molar mass of iron (II, III) oxide? b. Alex's mass before getting the tattoo was 61.5 kg. The tattoo contains 5.20x1023 molecules of iron (II, III) oxide. What is Alex's mass (in kg) after getting the tattoo?

Q: 3.150 The compound 2,3-dimercaptopropanol(HSCH2CHSHCH2OH), commonly known as BritishAnti-Lewisite…

A: Given: Molecular formula of 2,3-dimercaptopropanol or BAL = HSCH2CHSHCH2OH = C3H8OS2 Molecular mass…

Q: The depletion of ozone (O3) in the stratosphere has been a matter of great concern among scientists…

A: The quantity of mass of NO2 produced is to be calculated. The balanced reaction is given as, O3 + NO…

Q: 3) Avogadro's number is most simply A) 6.02 x 1023 amu in 1 mole of a substance. B) 6.02 x 1023…

A: The number of units in 1 mole of a substance is known as Avogadro's number. And the value of…

Q: Phogene (COCl2) can be manufactured by mixing carbon monoxide with chlorine gas. CO + Cl2 → COCl2…

A: CO + Cl2 .....> COCl2  Given that :  Moles of carbon monoxide(CO) = 7.25 moles

Q: The composition of a mixture of potassium chlorate and potassium chloride is to be determined. A…

A: In this question we want to determine the percent by mass of potassium chlorate.  How we can…

Q: Allyl sulfide C6H10SC6H10S, is the substance that gives garlic, onions, and leeks their…

A: Molecular formula of allyl sulfide = C6H10S Molecular weight of allyl sulfide = (12.01 * 6) + (1.01…

Q: 4. Nitroglycerin (C3H5N309) is an oily liquid that detonates when heated to 218°C. Hence, the main…

A:

Q: 5. Here is the equation for the reaction between sodium metal and chlorine gas: 2Na + Cl2 2NaCl This…

A: Since you asked question number 5 so, as per Q&A guidelines of portal I solve question 5 for…

Q: Photosynthesis is the process by which plants synthesize glucose from carbon dioxide and water. The…

A:

Q: 1. A compound that contains only carbon, hydrogen, and oxygen is 40.54% C and 5.44% H by mass. What…

A: “Since there are multiple questions in this question and it is not mentioned that which one has to…

Q: 33. There are now about 332,400,000 people in the USA. a. How many moles of people is this? b. If 1…

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: In a universe far, far away, there exists an alien world where they have a different periodic table,…

A:

Q: How many grams of carbon dioxide will you get if you burn 400 lb of a hydrocarbon that contains…

A: Answer

Q: How many moles of CO2 are in 2.33grams of CO2? Please express your answer in decimal form

A: Given, mass of CO2 = 2.33 g

Q: Aluminum will react with bromine to form aluminum bromide (used as an acid catalyst in organic…

A:

Q: Using the formula Mn(ClO₄)₄ (MM = 452.74), what is the percent by mass of Mn in the compound?

A:

Q: 3 A student heated an unknown hydrate, Na,SO4 XH,O, in a crucible. The water was driven off, leaving…

A: The compound in which water molecule is present along with salt molecule is categorized as hydrous…

Q: Dinitrogen oxide (or nitrous oxide), N2O, also known as laughing gas, is widely used as an…

A:

Q: What is the mass of taurine if the number of moles is 0.4249 mol? What is the number of moles in…

A:

Q: 5. How many grams of Oxygen are needed to make 7.1 g of Chlorine? SeCl6 + 02 --> Se02 + Cl2 O 1.1 O…

A: Gien mass of Cl2 produced= 7.1 gThe given balance reaction is:SeCl6 + O2  → SeO2 +3 Cl2 1 mol of O2…

Q: u. 4. In the chemical reaction 2AL203 - 4Al + 302, the molar ratio of aluminum to oxygen is a. 2:3…

A: 4. given :-2Al2O3 → 4Al + 3O2  To calculate :- molar ratio of Al to O2  5. given :- P4O10 + 6H2O →4…

Q: What is the molar mass of X5((ZT3)3 in grams per mole? (Assume that the molar mass of X is 60.94…

A: The molar mass of a molecule is the sum of the atomic mass of all the atoms present in the molecule.

Q: a. What is the percent by mass of carbon in 44 g of carbon dioxide (CO2 )?b. What is the percent by…

A: The mass percent of an element in a compound is calculated by using the relation as shown below.…

Q: Copper(I) iodide (CuI) is often added to table salt as a dietary source of iodine. How many moles of…

A: The mass of copper (I) iodide (CuI), mCuI, in 1.00 lb or 454 g of table salt is;…

Q: Which for every statement best describes the relationship between a mass of CH, and moles For every…

A: Given: CH4 To find: Relationship between mass of CH4 and moles Solution: Number of moles is the…

Q: Consider the following chemical reaction. 3 Zn(C₂H₃O₂)₂(aq) + 2 Na₃PO₄(aq) → 6 NaC₂H₃O₂(aq) +…

A: The formula weight (FW) of a compound is calculated using the following expression: FW=∑ni×Mi where…

Q: What is the mass of 3.45 moles of aluminum sulfate [Al2(SO4)3]?

A:

Q: An ice freezer behind a restaurant has a freon leak, releasing 41.59 g of C, H,F,Cl into the air…

A:

Q: A balanced chemical equation contains the term "2Ba(OH)2⋅8H2O." How many atoms of each element does…

A:

Q: If steel wool (iron) is heated until it glows and is placed in a bottle containing pure oxygen, the…

A: Mass of iron =1.25 g Mass of oxygen =0.5g Mass of iron( III) oxide=? Molar mass of Fe2O3 =…

Q: Part C Now that we have put coefficients of 3 in front of CaSO4 and CaCl2, what coefficient should…

A: Given, 3 CaSO4  +  AlCl3                       3 CaCl2  +  Al2(SO4)3     Required,…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3Si2O52OH2 An…

A: Given data: Number of moles of silicon = 13  Chemical formula of talc = Mg3(Si2O5)2(OH)2

Q: 4. What is the percentage of water in the hydrate? mass of water in sample X 100 44.8% H,0 % water =…

A: The mass of water in a sample is 0.729 g. The mass of hydrate sample is 1.628 g.

Q: buprofen is an anti-inflammatory with the formula C13H18O2 A. What is the molar mass of ibuprofen?…

A: The answer can be calculated by the simple unitary method.

Q: Be sure to answer all parts. Nitroglycerin (C;H5N3O9) is a powerful explosive. Its decomposition may…

A:

Q: Hubei China, Ten hospitals were used to do a trial for Remdesivir drugs. Patients age 18 and above…

A: 1 mole = 6.022×1023 [ Avogadro's number ]  The mass of 1 mole of atoms of an element is called…

Q: Brasses are alloys in which copper is the primary component and zinc is the second most abundant…

A: Given: % of Zinc in naval brass = 39.25 % Mass of sample of naval brass = 72.1 g Molar mass of Zinc…

Q: a. Calculate the molar masses of these two compounds(CH2FCF3 and CHClFCF3). b. What is the percent…

A: a) This question asks us to find the molar mass of two compounds given. b) Percentage composition…

Q: 66. In aqueous solution, sodium iodide reacts with lead(II) nitrate to give solid lead(II) iodide…

A:

Q: 2. Early rockets used a fuel composed of hydrazine (N2H4) and dinitrogen tetraoxide (N204), which…

A: Given: The mass of N2H4 is 1.00×102 g. The mass of N2O4 is 2.00×102 g.

Q: KO2 is used in a closed-system breathing apparatus. It removes carbon dioxide and water from exhaled…

A: Given information: Mass of O2 = 235 g Mass of KO2 = 123 g

Q: Benzene, C6H6, is an important solvent and intermediate chemical in many chemical reactions. It is…

A: According to the mole concept, one mole of any substance related as - (1) 1 mole of the Substance =…

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: a. How many moles are in 8.5x1022 atoms Xe? b. How many moles are in 7.4×10 atoms Cu? c. How many…

A:

Q: When strongly heated, boric acid breaks down to boric oxide and water. What mass of boric oxide is…

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.