Write the chemical formula for each compound, and then calculate the amount in moles in each sample. c. 19.2 mg of indium carbonate

Q: Determine the number of moles in 2.42 × 10²³ formula units of BaBr₂.

A: Formula units of BaBr2 = 2.42 x 1023  Moles of BaBr2  = ?

Q: Copper(II) fluoride contains 37.42% F by mass. Use this percentage to calculate the mass of fluorine…

A: By the given mass percent it is clear that in 100g of CuF2 there are about 37.42 g of F by mass.

Q: Calculate the number of moles of oxygen in 78.2 grams of lithium nitrate (LiNO3).

A: We can calculate the no. Of moles of oxygen as follows.

Q: How many moles of NaCl are present in 100 g?

A:

Q: A 2.25 g sample of Ammonium carbonate contains how many moles of ammonium carbonate? Molecules of…

A:

Q: 24) Which of the following compounds contains the largest number of atoms? A) 1.00 mole of H,PO, C)…

A:

Q: Match equal numbers of moles 0.00567 mole He 1. 22.7 mg He 0.00293 mole He 2. 58.9 mL He 3. 25.0 mL…

A:

Q: Given 0.680 moles of Ca(NO3)2; calculate the formula units of Ca(NO3)2 in this amount.…

A: Given Moles of  Ca(NO3)2  = 0.680 moles

Q: Determine the number of moles in 1.19 × 10²³ formula units of MgCl₂.

A: It is known that one mole of a substance is equal to 6.022×1023 formula units of that substance…

Q: 13. How many moles are represented by 3.01·10“ helium atoms? 5 moles 0.75 moles 0.50 moles 1 mole

A: Given: no of helium atoms = 3.01 x 1023 atoms We know that, Avogadro number, NA = 6.02 x 1023 atoms

Q: 1. How many moles of lead(IV) oxide, PbO2, are present in a sample that contains 7.65 moles of oxide…

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

Q: a. How many molecules of dinitrogen monoxide are present in 4.63 moles of this compound?…

A: a) Given : Moles of dinitrogen monoxide i.e N2O = 4.63 mol.

Q: What is the mole ratio of Mg to MgCh? Mg(s) + HC|(aq) -› MgCh(aq) + Ha(g)]

A:

Q: Q2 Calculate the moles of magnesium in 1.25 grms of magnesium. Q2a.Use the mole of magnesium in…

A: Moles from the given mass can be determined by using the formula as; Moles=Given massMolecular mass…

Q: A sample of N20 contains 1.10x1024 molecules. How many moles of N20 are present? mol Find the mass…

A: Molecules of N2O = 1.10×1024 Molar mass of N2O = 44g/mol  Avogadro number = 6.023×1023

Q: Use the References to access important values it needed for a. How many ATOMS of carbon are present…

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

Q: A snowflake contains 1.9 X 10 ¹⁸ molecules of water. Home many moles of water does it contain?

A:

Q: Suppose that a compound containing copper and chlorine contains 0.01139 moles of copper and 0.03813…

A: According to the question:  moles of copper in compound = 0.01139 moles moles of chlorine in…

Q: A student weighs a 0.0103 g0.0103 g sample of magnesium metal. How many moles of magnesium does the…

A: The answer to the following question is given as:

Q: Calculate the grams of BaCl2  moles BaCl2= 0.0024

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

Q: Calculate the number of moles of MgSO4 in 10.0 g of this compound.

A: Molar Mass is defined as the mass of the substance present in one mole. Mole is the chemical unit…

Q: Calculate the number of formula units present in a sample that contains 4.8 moles of potassium…

A:

Q: Calculate the moles of FeFe in 3.32×10223.32×1022 atoms of FeFe.

A: Number of atoms of Fe is given 3.32 X 1022

Q: A sample contains 27.1 g of calcium oxide. How many moles of calcium oxide are in the sample ? a.…

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

Q: Number of moles of oxygen which has the no. of molecules equal to the no. of atoms present in 32…

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

Q: How many MOLES of xenon trioxide are present in 4.37 grams of this compound ? moles.  How many…

A: Answer :- Below I have explained the step by step solution hope this will really gonna help !!!…

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

A:

Q: Convert 40.0g K3PO4  to molecules of K3PO4 . choose the correct multiple choice underneath. 40.0…

A: Given mass of K3PO4  = 40 g

Q: How many molecules of water are made from 8 molecules of H2? molecules

A: Balanced equation for the formation of water from hydrogen and oxygen is as follows. 2H2+O2→2H2O…

Q: Calculate the number of moles in a sample of chromium containing 5.00 * 1020 atoms and the mass of…

A:

Q: One mole of sulfur approximately has a) 6.02214 * 10^23 b) 6.02222 * 10^23

A: In chemistry, mole concept is very important for various calculations , understanding and quantify…

Q: What is the molar mass of magnesium phosphate? A. 310 grams / mole B.263 grams / mole C.71.3…

A: 1- First we will see the molecular formula :  Magnesium ion  : Mg2+  Phosphate ion : PO43-  Both are…

Q: Calculate the number of moles in 2.36g of carbon disulfide

A: Given: Mass of carbon disulfide=2.36 g Molar mass of Carbon disulfide (CS2)=76.139 g/mol Moles of…

Q: Suppose that a compound containing copper and chlorine contains 0.01044 moles of copper and 0.01517…

A:

Q: Use compound formulas to determine element composition. A sample of pentanol, C5H120, contains 1.69…

A:

Q: A compound contains 0.01238 moles of V and 0.02341 moles of Cl. Calculate the ratio of moles of Cl /…

A: A compound contains 0.01238 moles of V and 0.02341 moles of Cl. We have to calculate the ratio of…

Q: During her baking class, Iana used 545g table sugar (C12H22O11). Calculate a) number of moles, b)…

A: Given, Mass of table sugar (C12H22O11) = 545 g Number of moles of table sugar (C12H22O11) = ? Number…

Q: Calculate the number of moles in a 7.89 kg sample of aspirin

A: No. Of moles = Given mass/molar mass

Q: Determine the number of moles of phosphorus contained in 4.41 × 1024 atoms of phosphorus.…

A: Given , Number of atoms of phosphorus = 4.41 × 1024

Q: 1. How many ATOMS of nitrogen are present in 4.59 moles of nitrogen dioxide ? atoms of nitrogen. 2.…

A: Nitrogen Dioxide = NO2  Moles of NO2 = 4.59 Number of Molecules of NO2 = Moles × 6.022 × 1023 = 4.59…

Q: Calculate the number of moles present in 3.01x10²³ atoms of Mg (Magnesium)

A: 1 mole of any substance contains Avogadro's number of atoms. Avogadro's number = 6.023 X 1023 moles…

Q: You have 73.56 g of silver nitrate.  How many moles of oxygen atoms are present

A: One molecule of nitrate ( AgNO3 ) contains three atoms of oxygen.  Molar mass of AgNO3 = 169.87…

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

A: Interpretation -  To determine the number of moles in each sample - 38.2g of sodium chloride  36.5g…

Q: 1. How many moles are in each of the given samples? a) 2.50 mL of water (assume density of water is…

A: Note : As per our guidelines we are supposed to answer first 3 parts .please resubmit the other…

Q: How many grams of Ca are present in 3.28 moles?

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

Q: Use the References to access important values if needed for this question. a. How many ATOMS of…

A: A mole is defined as the number of particles or constituents present in exactly 12g of carbon-12…

Q: Consider the 124g sample of the compound? Determine the moles of calcium chloride present (a)number…

A:

Q: 1. How many ATOMS of nitrogen are present in 3.74 moles of dinitrogen monoxide ?  atoms of nitrogen.…

A: 1 mol of Dinitrogen monoxide (N2O) has two moles of the Nitrogen atom and 1 mol of the Oxygen atom

Q: Calculate the number of moles of fluorine atoms in 61.7 mL of CHClF2 (density=1.49 g/mL)

A: Mass of CHClF2 is calculated as follows:

Q: A compound of potassium had the following percentage composition: K 49.44%; H 0.6372%; P 19.58%. The…

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.