For the formula  K3N  What is the percent Nitrogen in the compound

Q: For each of the following compound, determine the moles of compound present for 595.5 grams of the…

A: Interpretation: The moles of the given compound are to be determined. Given:  Formula of feldspar =…

Q: A sample containing 15.23 moles of calcium fluoride is equal to how many gram

A: A gram is a scientific unit of mass that was defined as the actual weight of a volume of distilled…

Q: HN CH3

A: The given figure is a line diagram of the compound. To calculate the number of each atom we need to…

Q: How many formula units are contained in a sample of Cu3PO4 with a mass of 210 grams?

A:

Q: A compound consists of 4.50 g of nitrogen for every 7.71 g of oxygen and has the same empirical and…

A: The given mass of nitrogen = 4.50 g.The given mass of oxygen = 7.71 g. It is given that compound has…

Q: Determine the number of atoms of each element in the empirical formula of a compound with the…

A: The molar mass of carbon is 12.01 g/mol and the mass of carbon is 54.95 g. The moles of carbon is…

Q: ow many moles of Al2O3 can be made with 12.5 grams of Al

A: The stoichiometric equation for the combustion of aluminium is, The moles of Al in 12.5 g is,

Q: The anticaking agent added to table salt is calcium metasilicate (CaSiO3). This compound can absorb…

A: The total molar mass of CaSiO3 is 116.2 g/mol.

Q: be

A: Based on formula weight we can calculate the % mass composition of constituting atoms/elements

Q: A 5.000 g sample that contained NaCl and BaCl2*2H2O was heated. After heating, the sample had a…

A: Number of moles of barium chloride and water is determined as given below:

Q: 2. A compound composed of carbon and hydrogen with the formula CxHy was burned. The balanced…

A: The reaction is,  2CxHy +13O2--->8CO2 + 10 H2O Now we have to divide above equation by, 2 we get,…

Q: 2. A compound composed of carbon and hydrogen with the formula CxHy was burned. The balanced…

A: • Since, in the given chemical equation we have to calculate the number of carbon and hydrogen in…

Q: monium phosphate (NH4)3PO4 contains 0.104 mol of nitrogen atoms. The number of oxygen atoms in a…

A:

Q: The empirical formula for the following compound is: ОН HO a. C3H60 O b. C6H1202 O c. C3H50 O d.…

A: Empirical formula means representation of chemical formula in simple molar ratio.

Q: Determine the empirical formulas of the compoundswith the following compositions: (a) 40.1 percent…

A: a) Calculate the number of moles of each element, 40.1 g C(1 mol/12.0107 g)=3.3387 mol C 6.6 g H(1…

Q: If a sample of urea, CH4N2O, is 86% pure, what is the percent by mass of nitrogen in this sample…

A:

Q: how many grams of H2O will contain 9.50x10^24 hydrogen atoms?

A: Given: H2O water molecule 9.50x1024 hydrogen atoms 2 H atoms are present in one mole of H2O. That is…

Q: How many formula units make up 20.0 gg of magnesium chloride (MgCl2MgCl2)?

A: Given, Mass of MgCl2 = 20.0 g

Q: How many molecules are in the sample? 17 g C6 H12O6

A: No. Of molecules= (given mass/molecular mass) * Avogadro's no. Avogadro's no. is 6.023*1023

Q: What is the percent composition of each atom in potassium nitrate. KNO3 What is the percent…

A: Percent composition of each atom in the given compounds has to be calculated.

Q: Which of the following 5.00 g samples contains the smallest percent oxygen? Calcium oxide…

A: Copper oxide would have smallest percent of oxygen .

Q: Which would contain 9.03 × 1023 oxygen atoms? Avogadro Constant = 6.02 × 1023. 3.0 mol H2O   0.75…

A: This problem can be solved by knowing that one mole of substance consists of 6.022×1023 particles.

Q: 1. Define Percent Composition

A: Percent composition of a element in a molecule is how much percentage of the element is present in…

Q: What is the percent (by mass) of oxygen in citric acid, C6H8O7.

A:

Q: 5. Empirical formula for C4Hsl4N2 Is. a) CH2IN b) C2H42N c) C2H2LN2 d) none of all

A: Empirical formula is the simplest whole number ratio of atoms present in a compound. Where as the…

Q: Calculate the number of moles of each elements/ compound contain. 1. 3.12x1020 molecules of NH3 2.…

A:

Q: Which of the following has the highest number of molecules? 1.0g F2 1.0g O2 1.0g Cl2 1.0g H2

A: One mole of a substance is equal to the mass of carbon-12 which contains 6.023 × 10²³…

Q: In 3.47x1026 molecules of of C3H7NO2 a.How many moles of C3H7NO2 are present b.How many moles of…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: a 5.000g sample that contained NaCl and BaCl2 *2H2O was heated. After heating the sample had a…

A: Given : Mass of sample of NaCl and BaCl2*2H2O = 5.000 g And mass of sample after heating = 4.688 g

Q: Find the percent composition of each element in Sodium Citrate (Na3C6H5O7)

A: Percent composition:  It is defined as the ratio of the amount of element to the total amount of the…

Q: many sugar molecules are in the beaker?

A: The size of single sugar molecule is 1.5 nm approx. The length of 1 mile is equal to 1.609×1012 nm.…

Q: Write all mole ratios for the following equation: 4NH3(g) + 6NO(g) → 5N2(g) + 6H2O(l)

A: Please find the attachment

Q: What is the molar mass of the following compound? Include the mass to 2 decimal points without…

A:

Q: A compound has the formula ZnGa2O4. What is the percent composition?

A: In this question we want to determine the value of percent composition of Zn, Ga and O for these…

Q: Tennantite is an ore of copper with the formula Cu12As4S13. How many moles of copper are present in…

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: How many molecules of NO are in a 22.5 g sample of the compound?

A:

Q: Find the percent composition of the antibiotic

A: Percentage composition:   Relative mass of each constituent element   % of element = n x at.wt of…

Q: How many moles of C2H4 contains 2.75x1023 atoms of H?

A:

Q: Small amounts of tungsten (W) are usually added to steel to strengthen and harden the steel. Two…

A:

Q: Which of the following compounds contains the largest number of atoms?

A: 1 mol = 6.022 × 1023  atoms   We can calculate moles of each atom in a mole of compound. For example…

Q: The number of molecules in 0.556g of PF6 is

A: We have given that Mass of PF6 = 0.556g Molar mass of PF6 = 144.9642 g/mole No. of mole of PF6 =…

Q: How many formula units are in 3.25 moles of (NH4)2SO4? [?]x10 formula units

A: Given: Number of moles of (NH4)2SO4= 3.25 mol The number of formula units of (NH4)2SO4 =? The number…

Q: • Sodium metal reacts with hydrogen to form sodium hydride (NaH) 2Na + H2---- 2 NaH If 10 grams of…

A: Given reaction --- 2Na + H2 ----> 2NaH  mass of Na =10 g, mass of H2= 8 g  moles of NaH = ?…

Q: Determine the empirical formula of a compound that has the following percent composition: 65.25%…

A: Answer:- This question is answered by using the simple concept of calculation of empirical formula…

Q: The number of hydrogen atoms in 0.500g of glucose (C6H12O6) is a. 12 b. 1.67x1021 c. 2.78x10-3 d.…

A:

Q: What is the percent composition of oxygen in aluminum nitrate?     6.58%     67.60%     12.67%

A: Aluminium Nitrate is Al(NO3)3 Atomic mass of Al = 27 g mol-1 Atomic mass of N = 14 g mol-1 Atomic…

Q: find the percent composition by mass of C12H22011 find the percent composition by mass of Fe304

A: By determining molecular mass and using percentage composition by mass formula calculate .

Q: Boric acid, H3BO3 is a mild antiseptic and is often used as an eye was. A sample contains 0.543…

A: Given: the number of moles of boric acid=0.543 mol. Molar mass of boric acid =61.83 g/mol To find:…

Q: 1.The compuond cisplatin Pt(NH3)2Cl2 is an antitumor. a)Calculate the elemental percent composition…

A: In problem a) we will find out the mass percentage of elements present in cisplatin and in b) we…

Q: How many atoms of C are present in 22.3 g of C?

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.