If the formula of an oxide of element X is X₂03, what is the formula of the chloride of X? (A) XC13 (B) XCI (C) X3CI (D) XCI6 B C D

Q: what is the precent mass of oxalat in (K3Fe(C2O4)3·3H2O, 491.3 g/mol)?

A:

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: The cations given are Fe3+ and Pb4+ The anions given are CrO42– and PO43–

Q: How many protons, neutrons, and electrons, respectively, are present in the ionic species 19779Au3+?…

A: All the details are explained in handwritten solution.

Q: Calculate the formula mass for each compound. (a) CS2 (b) C6H12O6 (c) Fe(NO3)3 (d) C7H16

A: The formula mass is the sum of the atomic weight of each element in the empirical formula. The…

Q: 1. Using the various group classifications from the periodic table, assign all appropriate labels to…

A: In the periodic table elements are arranged on the basis of their atomic number. When the elements…

Q: Which species is being oxidized in the following reaction? 2 Au(NO3)3(aq) + 3 Ca(s)3 Ca(NO3) (aq) +…

A:

Q: What is the boron mass percent composition in (CH3)3OBF4?

A: • We need to calculate the mass percent of boron (B) in (CH3)3OBF4

Q: What is the mass percentage of C in caffeine, C18H10N4O2

A: The mass percentage is calculated by the formula, mass%=mass of elementmass of compound×100

Q: Calculate the mass percent of H in C3H6O3.

A: Introduction- The mass percent of any element is calculated by the ratio of mass of the element in…

Q: Would it be possible to determine the percentage of oxygen in NaCIO3?

A: The given compound is = NaCIO3 The percent of oxygen in this compound is =?

Q: 5. Using the periodic table, classify each of the following elements as a metal or a nonmetal, and…

A: a)The atomic number of Co is 27Electronic configuration of cobalt is Co: 1s22s22p63s23p64s23d7It can…

Q: Part one: Write the names of the following compounds. Show all of your work to get full credit. (a)…

A: The name of the compounds are :  (a) NaNO2   : Sodium nitrite (b) Fe(OH)2  : Iron (II) hydroxide or…

Q: 31. What is the empirical formula of the compounds with the following molecular formulas? (a)…

A: Empirical formula and molecular formula: Empirical formula: it can be defined as the simplest whole…

Q: What is the correct formula for sodium phosphate?  (a) Na3PO4(b) Na3P(c) NaPO4(d) Na(PO4)2

A: The correct formula for sodium phosphate has to be given

Q: What would be the mass, in grams, of an NO2 sample in which 100 billion (1.00 X 10 11) moleculesare…

A: The number of molecules of NO2 sample is 1.00×1011.   The formula to calculate the number of…

Q: What is the mass percentage of C in codeine, C₁₈H₂₁NO₃? Provide an answer to two decimal places.

A:

Q: Elemental phosphorus is used in the semiconductor industry. It can be obtained from an ore called…

A: The reaction above can be correctly written as below: 4Ca5(PO4)3 F + 18SiO2 + 30C ----->  3 P4 +…

Q: What is the mass percent of iron in iron(II) oxalate, FeC2O4?

A: From the molecular formula we can get the molar mass from there we can get the weight of the…

Q: Classify each of the following fifth-row elements as a metal, a metalloid, or a nonmetal: (a) Y (b)…

A: The metals are elements that are aligned left side of the periodic table and have a tendency to lose…

Q: Write the following equations for Al2(SO4)3(aq) and Pb(NO3)2(aq). Include the states of matter in…

A: In a double displacement reaction, two ionic compounds exchange their constituting ions between each…

Q: How many atoms of O are found in 1.00 x 10 2 g of K 2Cr 2O 7 ?

A: Number of atoms of Oxygen present in the given compound can be calculated as -

Q: Helium is the lightest noble gas and the second most abundant element (after hydrogen) in the…

A: a) The radius of a helium atom is 3.1x10-11 m The radius of its nucleus is 2.5x10-15 m The volume of…

Q: what is the final formula) - dinitrogen trisulfide - potassium sulfide - zinc acetate - lithium…

A: Dinitrogen trisulfide : N2S3Potassium sulfide : K2SZinc acetate : Zn(CH3COO-)2Lithium sulfite…

Q: Determine the molecular weight of Ca(NO3),

A: The given molecule is Ca(NO3)2.   The molecular weight of each atom in the given molecule is, Ca =…

Q: What is the net ionic reaction for the following chemical reaction? 2 K3 PO4 (aq) + 3 (NH4)2 CO3…

A: Net ionic equation :-  In precipitation reactions the net ionic equation can be written by…

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.