Determine the percent ammonia, NH3, in Co(NH3)6Cl3, to three significant figures.

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: What is the molecular fort for a compound with mass 90g/mol and the empirical formula HCO2

A: Empirical formula of a compound is that formula in which simplest positive integer is used.

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

A:

Q: How many moles are in 3.41 x 1024 molecules of CaCO3?

A: A mole contains 6.022×1023 atoms or molecules or particles. This number, 6.022×1023 is called the…

Q: 2. Calculate the percentage by mass of oxygen in the following compounds d. (NH4)2 CO3

A: The mass percentage of an element in a compound is the percent mass of the element in the total mass…

Q: 2. H3PO4, Phosphoric acid, is used in detergents, fert izers, toothpastes and flavoring in…

A: Answer to the following question can be given as -

Q: 9. How many moles are in 6.25 x 1023 molecules of potassium chloride?

A: Since you have posted multiple questions, we will solve only first question for you. If you want any…

Q: The formula for molybdenum(IV) hydroxide is Mo(OH)4. What is the percent by mass of oxygen in…

A: percent by mass of O = (mass of O/mass of Mo(OH)4 ) × 100%

Q: How many moles of Fe2O3 are in 239 g of the compound?

A: Given: Mass of Fe2O3 = 239.0 g Molar mass of Fe2O3 = 159.69 g/mol

Q: What is the percent composition of nitrogen in (NH4)2CO3?

A: Percent composition of N = (mass of N in (NH4)2CO3/mass of (NH4)2CO3) × 100%

Q: Whats the empirical formula of a compound that is 92.3% carbon and 7.7% hydrogen by mass?

A:

Q: Calculate the number of O atoms in 0.00963 g of CaSO4 · 2H2O.

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

Q: The metal, Pellissippium (Pe), has a molar mass of 65.01 g/mol. What is the mass of 2.300 moles of…

A: The mass of metal, Pellissippium (Pe) has a molar mass = 65.01 g/mol. The chemical formula of…

Q: What is the percent by mass of carbon in acetone, C3H,O? А. 1.60 % В. 30.0 % С. 62.0 % D. 20.7 % Е.…

A: Standard data: The molar mass of carbon atom = 12.01 g/mol The molar mass of oxygen atom = 15.999…

Q: 4. Determine the percent composition by mass of all elements in H,SIO3.

A:

Q: How many moles are there in a copper wire that has a mass 10.234 g?

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

Q: How many atoms of hydrogen are in 132 g of (NH4)2HPO4?

A: Given: 132g of (NH4)2HPO4 The given grams of (NH4)2HPO4 is converted into moles as follows,

Q: How many H atoms are in 75.7 g of acetaldehyde, C2H4O?

A:

Q: Determine the quantity of moles of hydrogen in 3.06 x 10-3g of glycine , C2HSNO.?

A: Please find your solution below : Mole is a measure of amount of any substance.  It is defined as…

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of chlorofluorocarbon (CFC). CF2Cl2

A:

Q: What is the percent composition of oxygen by mass to one decimal place in CuSO4 . 5H2O? A. 57.7%…

A:

Q: 3. What is the mass in grams of 0.0435 moles of alcohol (C,H;OH)?

A: Molar mass = 2 • ( molar atomic mass C ) + 6 • ( molar atomic mass of H ) + ( molar atomic mass of O…

Q: Calculate the %O by mass in magnesium hydroxide, Mg(OH)2 .

A:

Q: What mass in grams of TNT can be made from 598 g C7H8?

A:

Q: How many moles of Fe2O3 are in 163 g of the compound?

A: Given - mass of Fe2O3 = 163 g To find - moles of Fe2O3 Formula -

Q: Calculate the mass in grams of 1.35 mol of     a) titanium white, TiO2 , used as a paint pigment.…

A:

Q: What is the percent by mass of chlorine in Ca(ClO 3 ) 2

A:

Q: Determine the percent ammonia, NH3, in Co(NH3)6Cl3.

A: In Co(NH3)6Cl3, 6NH3 are there.  Molar mass of 6 NH3 = 6x17.04 = 102.24 g/mol Molar mass of…

Q: Determine the percent ammonia, NH3, in Co(NH³) 6C1, to four significant figures.

A:

Q: 5) _NH3 + 02> _NO + H20 0.3359 mol of ammonia will make how many grams of nitrogen monoxide?

A:

Q: What is the empirical formula for C4H10O2? O C₂H5O O CH,O O C₂H4O O CHO2 O CHO

A: Given that, C4H10O2 Change into empirical formula ?

Q: A compound whose empirical formula is XF3 consists of 65%F by mass. What is the atomic mass of X?

A: The empirical formula for a given chemical compound is used to describe the simplest whole number…

Q: What is the percent by mass of phosphorus in PCI3?

A:

Q: Calculate the percent oxygen by mass in disilicon trioxide(Si2O3) to 3 significant figures.

A: Molar mass of O = 15.999 g/mol.Molar mass of Si2O3 = 104.168 g/mol.

Q: What is the % by mass of Nitrogen (N) in (NH4)3PO3

A: Mass percentage tells about the mass percentage  of that element present in the given Compound. Or…

Q: The compound XCl4 contains 75.0% Cl by mass. What is theelement X?

A: The empirical formula of the compound is XCl4 and the mass percentage of chlorine is given as 75 % .…

Q: What is the percent composition by mass in C6H12O6?

A: The compound given is C6H12O6. Assuming 1 mole of C6H12O6.

Q: 2. How many MOLES of fluorine are present in 5.25x1022 molecules of nitrogen trifluoride ? moles of…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: The chemical formula of blue crystalline substance of hydrated penta-aqua copper II sulphate is…

A: Molecular formula: CuSO4.5H2O Chemical formula: CuH10O9S Molar mass of CuSO4.5H2O = 64 + 10 x 1 + 9…

Q: 5.2C23 molecules of hand sanitizer, ethanol (C,I IO ) is how many moles?

A: Given, Molecules of Ethanol = 23 General formula is: 1 mole has 6.023 x 1023 molecules.

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of chlorofluorocarbon (CFC). CFCl3

A: Formula-Stoichimetry :  From the formula of a molecule Stoichimetric amount of molecule will react…

Q: Calculate the mass (in g). 5.0x10^25 O3 molecules

A: Given,Molecules of O3 = 5.0 × 1025Moles of O3 can be calculated as:

Q: Arrange the following compounds from left to right in order of increasing percentage by mass of…

A:

Q: 4. How many molecules are in 2.5 mole H,O?

A: Any  1 mol of substance  always contains avogadro number of molecules.

Q: Calculate the mass percent of each element in the chemical formula C5H9O2N

A: The ratio of mass of element in 1 mol to the molar mass of compound multiply by 100 is known as…

Q: Calculate the percent composition by mass of potassium in K2CrO4

A: Assuming we are having 1 mole of K2CrO4  Molar mass of K2CrO4   = (39*2 + 52 + 16*4) = 194 g/mol

Q: t percent nitrogen by mass?

A:

Q: What is the mass percent composition of (NHA257 Give answers in this order: 9%N. 96H, ES

A: The mass percentage composition of an element present in a compound can be found out by dividing the…

Q: How many moles of Ag are in 43.6 grams of Ag2O?

A: Mass of Ag2O = 43.6 g Molar mass of Ag2O = 231.735 g/mol

Q: The formula of ytterbium(III) oxide is Yb₂O₃. What is the percent by mass of oxygen in…

A: Mass percent represents the composition of an element in the given compound, which is calculated…

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.