Calculate the formula mass for compound. Cr(NO3)3

Q: 2. A compound has the following chemical formula; CuAl6(PO4)4(OH)8 4 H₂O. Calculate the mass…

A:

Q: Combustion analysis of naphthalene, a hydrocarbon used in mothballs, produced 8.80 g CO2 and 1.44g…

A: The empirical formula is to be calculated. Provided that naphthalene produced 8.80 g CO2 and 1.44 g…

Q: How to calculate mass (in grams) of one formula unit of 13.0 g of Ca(NO3)2?

A:

Q: Element X has three naturally occurring isotopes. The masses (amu) and % abundances of the isotopes…

A:

Q: How many carbon atoms are there in 9.50 g Na2C2O4?

A: It is known that 1 mole of a substance is equal to 6.022×1023 atoms. The given compound is…

Q: Name each compound and calculate its formula mass.(a) Al2(SO4)3(b) P2O3(c) HClO(aq)(d) Cr(C2H3O2)3

A: Formula mass is termed as the summation of all atomic weights of the atoms in its empirical formula.…

Q: What is the mass in grams of 7.3 x 1024 molecules of lactic acid (C3H6O3), the compound responsible…

A:

Q: Ammonium nitrate is a common fertilizer. Agronomists base the effectiveness of fertilizers on their…

A: Formula of ammonium nitrate = NH4NO3 Molar mass of N = 14 g/mol Molar mass of O = 16 g/mol Molar…

Q: Hemoglobin, a protein in red blood cells, carries O2 from the lungs to the body’s cells. Iron (as…

A: It is given haemoglobin that haemoglobin has a molar mass of 6.8×104g/mol and the mass percentage…

Q: Calculate the mass of dinitrogen tetroxide N2O4 that contains a million (1.0 x 10^6) oxygen atoms.

A: Molar mass of N2O4 is 92.011 g/molTherefore 92.011 g of N2O4 contains 6.022 x 1023 molecules As, 1…

Q: How many oxygen atoms are there in a single formula unit of Al2(SO4)3?

A: 1 molecule of given molecule is made up of 2 Al3+ and 3 SO42- units.

Q: What is the formula mass of Ca3(PO4)2

A: Formula  mass of chemical compound is the sum of average atomic mass of each element present in the…

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

A:

Q: How many molecules of water occur per formula unit of MgSO4. Write the complete formula of the…

A:

Q: Calculate the mass percentage of each element in turquoise.

A: Percentage composition is defined as the mass of each element present in  100 gm of compound  Mass…

Q: how many atoms does 4Al2(CO3)3 have

A: Given: compound 4Al2(CO3)3 To calculate: Number of atoms in given compound.

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: Calculate the mass percent of chlorine in Mg(ClO4)2.

A: We know that, Molar mass of Cl = 35.45 g/mol Molar mass of Mg(ClO4)2 = 223.206 g/mol

Q: Calculate the formula mass of mg(clo3)2

A: Formula mass of a substance can be calculated by combining   the average atomic masses of each atom…

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

A:

Q: Flake white was a white pigment used by Renaissance artists, which was composed of a combination of…

A:

Q: Beryl is a mineral which contains 5.03% Be, 10.04% Al, 31.35% Si, and 53.58% O. What is the simplest…

A: Given: The compound is made up of Be, Al, Si and O. The mass percent of Be = 5.03 % Mass percent of…

Q: Calculate the mass (in mg) of 9.85 x 1019 CCl2F2 molecules.

A: The relation between mass and number of moles of a substance is as follows,…

Q: What is the mass percent of carbon in NaC2h3O2= 82.03 g/ mol

A: Given                                                                           mass of NaC2h3O2=…

Q: Determine the mass (in g) of Na2CO3 that contains 3.43 × 1023 O atoms.

A: given : atoms of O = 3.43 × 1023 to calculate : mass of Na2CO3 that has 3.43 × 1023 O atoms

Q: What is the empirical formula of terephthalic acid, C8H6O4 ?

A: Empirical formula represents the elements of the molecule in the simplest whole number ratio.

Q: number of formula units

A:

Q: Dolomite, a type of rock found in some petroleum reservoirs, is a mixture of CaCO3 and MgCO3. If…

A: Let the mass of sample be 100 gMass of magnesium in the sample = 13.2 gDolomite consists of CaCO3…

Q: Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and…

A: Formula to calculate % composition:Mass % of element = mass of the element on the given formula /…

Q: Graphite, one form of carbon, is a powdery black solid used to make pencil lead.  A speck of…

A: Graphite powder is equivalent to carbon.

Q: Name each of the following compounds. Be sure to spell correctly. Formula Name P4O7…

A: 1. Tetraphosphorus: Indicates the presence of four phosphorus atoms.Heptoxide: Indicates the…

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

A: Given, Chromium (II) sulfide.

Q: . How many oxygen atoms are in 328g Ca (NO3) 2.

A: 12 oxygen atoms are in 328g Ca (NO3) 2. Formula =Ca(NO3)2=Ca(NO3)2 Molar mass…

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.