1. What is the mass in grams of 0.250 moles of Magnesium Sulfate (M9SO4)? 2. How many particles are in 125 moles of Sodium Acetate (NAC2H3O2) 3. How many moles of water is 74.5 grams of water?

Q: Calculate the number of C atoms in 0.872 mol of C? Calculate the number of SO2 molecules in 8.44…

A: The answers to the first three questions are given as:

Q: How many moles of O2- ions are there in 0.450 moles of aluminum oxide, Al203? mol O2- What is the…

A:

Q: A model of the butanal molecule is shown in the window below. ball & stick + labels ited a. How many…

A: From the model, Butanal=> CH3>CH2CH2CHOMolecular formula of butanal is C4H8O. Mole is the SI…

Q: How many moles of hydrogen are in 3.06 x 10-3 g of glycine, C2H5NO2 ?

A: Moles of glycrine = given mass of glycrineMolar mass of glycrineMolar mass of glycrine (C2H5NO2) is…

Q: How many molecules are contained in two 500.-mg tablets of penicillin (C 16H 18N 2O 4S, molar mass…

A: Given data, The mass of penicillin = 500 mg The molar mass of penicillin = 334.4 g/mol. To calculate…

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: Chloral hydrate (C2H3Cl3O2) is a drug formerly used as a sedative and hypnotic. It is the compound…

A: Hi, since you have posted multiple subpart question, we will answer the first three subparts. Kindly…

Q: 1. Hydroxyapatite, Ca5(PO4)3(OH), is a naturally occurring mineral in the bone. A. Calculate the…

A: A question based on mole concept that is to be accomplished.

Q: How many moles are in 2.56 x 10-4 grams of Fe2O3?

A:

Q: Caffeine, a stimulant in coffee and tea, a molar mass of 194.19 g/mol and a mass percentage…

A: Given,

Q: The chemical formula for chlorophyll is C 55 H 22 MgN 4 O 5 a) What is the molar mass of the…

A: Molar mass of a substance is the mass of one mole of that particular substance. The no of moles in a…

Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

Q: What is the molar mass of  sulfuric acid, H2SO4 You may assume H has a molar mass of 1 g/mol, S has…

A: For question 1, we have to find the molar mass of H2SO4. For question 2, we have to find the mass of…

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: Determine the mass in grams of 1.6 × 10⁻³ mol glucose (C₆H₁₂O₆)   How many moles of propylene (C₃H₆)…

A: The question is based on mole concept . We have to calculate moles,  mass and hydrogen atoms.

Q: A compound contains 78.14% B and 21.86% H by mass and has a molar mass of 27.67 g/mol. What is the…

A: mass % of B = 78.14 %mass % of H = 21.86 % mass of hydrogen in 1 mole (27.67 g) of the compound = ?

Q: 1. How many significant figures are in the number 0.0840900? Write the following number in standard…

A: Zero between digits is significant Zero left to decimal is non significant Zeroes just after decimal…

Q: . How many ATOMS of carbon are present in 9.01 grams of carbon tetrachloride ?

A: Number of moles = mass/molar mass  Molar mass of CCl4 = 153.82 g/mol  1 mol = 6.022 × 1023…

Q: In 0.4 ure in 2.9 mol of

A: Firstly Calculate the moles of Br atom in CHBr3  moles of Br atom = 3 • ( moles of CHBr3 )  Moles of…

Q: re each number. Column A Column B 1. What is the mass of 0.042 mole C8H18? 2. How many moles are…

A: 1) Calculating the mass of 0.042 moles C8H18:

Q: Ascorbic acid, or vitamin C (C6H8O6), is an essential vitamin. It cannot be stored by the body and…

A:

Q: aspartame has molecular formula of C14H18N2Oc5(s). what is the molar mass? what is the amount of…

A: The molar mass of any molecule is the total sum of the molar masses of all the atoms present in that…

Q: a. How many ATOMS of boron are present in 5.24 grams of boron trifluoride? atoms of boron. b. How…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: the formula for disulfiram decafluoride is S2F10   A.How many molecules are in 1.35 grams of…

A: A.

Q: 1- Determine the mass of 6.46 mol of Pb, H₂SO4? 2- Determine the moles in 125.0 grams of nickel,…

A:

Q: Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/mol and…

A:

Q: 2: Find the number of K* ions in 3.41 mol of K,HPO4? 3: Find the amount of the indicated element (in…

A: 1 mole of any compound has 6.023*1023 molecules or atoms. Moles = given mass of compound/molar mass…

Q: 3. What is the mass (in kg) of 6.89 x 1025 molecules of CO2? The molar mass of CO2 is 44.01 g/mol.

A:

Q: The formula of glucose is C6 H12 O6. a. The number of molecules in 166 grams of glucose would be…

A:

Q: 6. Aluminum sulfate, Al2(SO4)3Al2(SO4)3, is used in some antiperspirants. A. How many moles of…

A:

Q: 1. How many moles of NaOH (FW = 40g/mol) are there in 2.0 grams NaOH? 2. How many grams of Na2CO3…

A: moles of NaOH = mass / FW = 2.0 g / 40 g/mol = 0.05 moles NaOH

Q: 1.  What is the mass percent composition of oxygen in a compound having the empirical formula…

A: As per our guidelines, we are supposed to answer only one question. Kindly, repost other question as…

Q: 10) What is the mass in grams of 0.852 moles of ferric oxide (Fe,O,) ? A) 136 g B) 17 g C) 5.34 x…

A: Number of moles = 0.852 mol

Q: Dimethylnitrosamine, (CH3)N2O , is a carcinogenic (cancer-causing)substance that may be formed in…

A: Hi, since you have posted multiple subpart questions, we will answer the first three subparts for…

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

Q: 1. Ethanol has a chemical formula of C2H6O. What is its molar mass? 2. How many molecules of the…

A: Ethanol has a chemical formula of C2H6O

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.