4. The compounds given below are all fertilizers and provide nitrogen to the soil. Which of the compounds is the richer source of nitrogen in terms of percentage by mass? Show by calculating for each compound. Cation PO43- Hg22+ I- Al3+ S2- Anion Co2+ Symbol Proton 5 7986 6 16 117 136 5 1879 -30 Neutron Electron Net charge a) Urea, (NH2)2CO b) Ammoniumnitrate c) Guanidine, HNC(NH2)2 d) Ammonia

Q: What is the percentage composition by mass of potassium in potassium carbonate, K₂CO3. K 32218 19 Na…

A: Given,  Potassium carbonate ( K2CO3 )  The percentage composition of potassium (K) is:

Q: calculate the masss of carbon in a 1-carat diamond that contains 7.56 x 10^22 atoms of carbon

A:

Q: 50.0 gram

A:

Q: (a) H2 _?_ x1025 H atoms  (b) Ca(NO3)2 _?_ x1023 Ca2+ ions  _?_ x1024 NO3- ions  (c) N2O2 _?_ x 1024…

A: The mole is actually contains Avogadro’s number of particles in elements or compounds. Avogadro’s…

Q: A sample has 8.63 x 10 atoms of boron. How many moles of boron does this represent? O1.41 .014 O…

A: Given : Number of atoms of boron = 8.63 X 1021 atoms

Q: Plutonium forms three oxides: Puo, PuO2, and Pu2O3. What are the formula masses of these three…

A: The formula mass of a compound is calculated by adding the molar masses of each individual atom in…

Q: What information is provided by the formula for potassiumchromate ( K 2 Cr O 4 )?

A: Introduction: Molecular formula: The molecular formula represents the number of each kind of atom or…

Q: The mass percent of CO3 in ca(CO3)2 ( atomic mass C= 12, O = 16, Ca = 40) is O 60% O 77.77%) O 50% O…

A: Mass percent can be calculated by the formula given below as; Mass percent=Mass of the…

Q: Complete the table below for calculating the molar mass of the ionic compound chromium(II) fluoride.…

A: Calculation of molar mass of the chromium(II) fluoride: The molar mass of Cr2+ = 51.99 g/mol The…

Q: Consider the following made-up compound: (DJ)3Q2 Determine the number of moles of element Q in the…

A: Given ,Fake Periodic table.Compound : Mass of = 0.575 gObjective : Determine moles of Q in

Q: Calculate the mass of tetraborane (B4H10) that contains a billion (1.000*10^9) hydrogen atoms.

A: Here we are required to calculate the mass of tetraborane  that contains a billion hydrogen atoms.

Q: What is the mass percentage of sulfur in butyl mercaptan (C,H10S

A: Given: The compound is butyl mercaptan i.e. C4H10S. Assuming 1 mole of C4H10S.

Q: Complete the table below for calculating the molecular weight of the compound dinitrogen monoxide,…

A: molecular weight: Sum of the atomic masses of atoms in a molecule  Formula weight : Sum of the…

Q: Some brands of salami contain 0.090% sodium benzoate (NaC2H3O2) by mass as a preservative. If you…

A:

Q: Macmillan Learning, On another planet, the isotopes of titanium have the given natural abundances.…

A: Average atomic mass : The average atomic mass of an element is the sum of the atomic masses of it's…

Q: How many grams of nickel are in a 3.4x10^27 nickel atoms?

A: There are 6.022×1023 atoms in one mole of a substance. Therefore,mass of 6.022×1023 atoms will be…

Q: Columbus... Homepage - Georg... Micr MEASUREMENT AND MATTER Naming ionic compounds with common…

A: Ionic compounds can be defined as the compounds containing ionic bond between positive and negative…

Q: I don't understand this problem! Please help! The question is: In the following balanced chemical…

A: The chemical equation represents the possible reactants that combine to yield the products. In this…

Q: how many atoms of carbon are in a 312.5 mg sample of C^3H^8?

A: Avogadro's number gives the number of atom or particle present in 1 mole of any substance.

Q: How do I calculate the mass of 6.20 x 10^22 tungsten atoms?

A: Given : Number of tungsten atoms = 6.20 x 10^22  Molar mass of tungsten = 183.84 g/mol

Q: Without doing any calculations, determine which element in each of the compounds will have the…

A: The mass percent is the ratio of mass of a component to the total mass of the compound, which is…

Q: Iron exists in nature as a mixture of predominantly three isotopes: ⁵⁴₂₆Fe (53.94 amu), ⁵⁶₂₆Fe…

A: We have to calculate the percentage of rarest of three isotopes.

Q: Find the number of hydrogen and oxygen atoms present in 15.0 g of pure hydrogen peroxide

A: we have to calculate  the number of hydrogen and oxygen atoms present in 15.0 g of pure hydrogen…

Q: 5. Calculate the average atomic mass of Nitrogen (verify in the periodic table) 14N 14.003 u 99.6%…

A: Given,  14N      14.003 u         99.6% 15N      15.000 u          0.4%

Q: There are 1.8 x 1024 atoms of chlorine in a sample of magnesium chlorate, Mg(CIO3)2. What mass of Cl…

A: Given: Atoms of chlorine in the sample = 1.8×1024 Molar mass of Cl = 35.5 g/mol

Q: The recommended daily allowance(RDA) of selenium in your diet is 8.87 × 1 0 -4 mol. Howmany atoms of…

A: The number of atoms from the given number of moles can be calculated as the product of number of…

Q: 1 mole of 63Cu atoms has a mass of about 63 grams. Explain why the number below Cu on the periodic…

A:

Q: None

A: To calculate the average atomic mass of titanium on the given planet, you will use the natural…

Q: Assume magnesium has three major isotopes in nature as shown in the table below. Fill in the missing…

A:

Q: Table 1: Molar masses of common rock forming elements Atomic Mass (amu) 28.09 Element Oxide (1)…

A: We can identify the valency of oxide are as follows Suppose the oxide formula is = MaOb(=2) Here,…

Q: Find the total number of atoms in a sample of cocaine hydrochloride, C17 H22 CINO4, of mass 25.5 mg…

A:

Q: A sample of N2O5 contains 3.75 x 10^23 oxygen atoms. How many molecules are in the sample?

A: Given that  A sample of N2O5 contains 3.75 x 10^23 oxygen atoms.  The number of molecules present in…

Q: A mystery element has two main isotopes of 62.9300amu and 64.928amu. Their percent abundances are…

A: The isotopes are the elements having same atomic number but different mass number.

Q: A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many K+…

A: Applying concept of avogadro number. 1 mole = 6.022× 1023 atom/ molecules/ ions

Q: 9. Complete the columns in the table: formula: Sno2 P203 H3PO4(ag) calcium hydrogen name: chloric…

A:

Q: What is the molecular formula of a compound with an empirical formula NO2 which has a molecular mass…

A: We have to find the molecular formula of a compound with an empirical formula NO2 which has a…

Q: 22. As in question 21 determine the mass % of N (nitrogen atoms) in ammonia (NH3), urea (CHẠN2O) and…

A: Mass percent is the mass of the element divided by the mass of the compound or solute.

Q: A 0.652 g sample of a compound is found to contain 0.579 g of Cu and 0.0730 g of O. Which of the…

A:

Q: Order the following from smallest to largest 1 Tin, Sn ! Germanium, Ge 3 Silicon, Si 4 Carbon, C 2.

A:

Q: A certain compound X is composed of 70.53% carbon, 13.02% hydrogen, and the remainder is nitrogen.…

A:

Q: the formula for this batch of Epsom salts?

A: Mass percent of water in Epsom salt = 100 x Mass of water/Mass of Epsom salt Mass of Epsom salt =…

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.