How many atoms of gallium are present in a sample that contains 75.1 grams of gallium?The molar mass of gallium is 69.72 g/mol 6.49×1023 atoms 2.35×1071 atoms 75.1 atoms 6.99×1023 atoms 5.59×1023 atoms

Q: How many chlorine atoms are present in 0.778 mol of Cl,? O 4.69 x 1023 atoms 1.56 atoms O 9.37 x…

A: Answer: 9.37 × 1023 chlorine atoms are present in 0.778 mole of Cl2

Q: Which of the following contains the smallest number of molecules? 1. 5.0 g N2 2. 5.0 g CO2 3. 5.0 g…

A: Firstly calculate the of number of mole of each compound from given formula: where as n = number of…

Q: Suppose you have two samples that are equal in weight, 24.824.8 g VV and 24.824.8 g Cr2O3Cr2O3.…

A: Given, Mass of V = 24.8g. Mass of Cr2O3 = 24.8g.

Q: How many sulphur atoms are contained in 30 g of Al2(S04)3 (Molar mass: 342.15 g/mol) ? OA 5.78 x…

A: Applying no. of moles  n= w/M  NA= 6.022E+23

Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: How many grams of newmetal (Nm) are required to produce x.xx grams of newmetal oxide?  2 Nm (s) +…

A:

Q: How much (in grams) H2O remains after the reaction is complete?   Suppose 7.70 g  of CH4 is…

A: After the complete reaction 8.89 g of H2O will form.

Q: Hydroxychioroquine (CigHasCIN;O) is a medication used to prevent and treat malaria in areas where…

A:

Q: How many moles of specified particles are present in a sample of each of the following substances if…

A:

Q: 1. The molar mass of PDF2 is 43.31 g/mol 2. The molar mass of CoF2 is 28.01 g/mol 3. The molar mass…

A: Introduction In order to calculate the molar mass of any particular substance, we need to follow…

Q: How many molecules of N204 are in 76.3 g N2O4? The molar mass of N2O4 is 92.02 g/mol. O 7.26 1023…

A:

Q: Calculate the molar mass of Al2 O3. Molar mass = = g/mol Calculate the molar mass of Al(NO3)3. Molar…

A: given :-  molecular formula :  Al2O3  Al(NO3)3  To be calculated :-  molar mass of given compounds

Q: How many atoms of hydrogen are in a 1.0 g sample of acetic acid, CH3COOH? The molar mass of acetic…

A: As per the given data we haveMass of acetic acid=1gMolar mass of acetic…

Q: For the chemical reaction   2KI+Pb(NO3)2⟶PbI2+2KNO32KI+Pb(NO3)2⟶PbI2+2KNO3   what mass of…

A: Given: The chemical reaction is, 2KI+PbNO32→PbI2+2KNO3......(1) The number of moles of potassium…

Q: How many moles are contained in each number of grams of table sugar (C 12H 22O 11, molar mass 342.3…

A: Given data molar mass of sugar ( C12H22O11 ) = 342.3 g/mole   mass of sugar part(a) 0.500 g…

Q: Carbonic acid (H2CO3) can form water and carbon dioxide upon heating. How many grams of carbon…

A: We can solve the problem by the following steps : At first we need to determine how many moles of…

Q: Determine the number of sulfur present in each of the the following quantities. a. 3.01 x 10^23 S2O…

A: a) Given : Number of S2O molecules = 3.01 X 1023 molecules. Since each molecule of S2O contains 2 S…

Q: How many moles of magnesium oxide are produced by the reaction of 3.82 g of magnesium nitride with…

A: Mass of Mg3N2 = 3.82g Mass of H2O = 7.73g Molar Mass of Mg3N2 = 100.9 g/mol Molar Mass of H2O = 18…

Q: A student is conducting a laboratory experiment with sulfur hexafluoride (SF6) with a molar mass of…

A: Given data, Mass of SF6 = 235.7 g Molecular weight of SF6 = 146.07g/mol

Q: What is the molecular formula of each of the followingcompounds?(a) empirical formula CH2, molar…

A: Equation for finding molecular formula from the empirical formula,

Q: In the following reaction, sulfur (S) reacts with aluminum chlorine (AICI3) to produce aluminum…

A: Molar mass of the compounds: a.       S Molar mass of S = 32.065 g/mol   b.      AlCl3 Molar…

Q: Use the following reaction between aluminum (Al) and oxygen gas (O2) to create aluminum oxide…

A: The given problem can be solved by first converting the given number of atoms to moles and then…

Q: What is the molar mass of 27.8 mg of a compound that is made up of 3.80 x 1020 molecules? 44.1 g/mol…

A:

Q: How many hydrogen atoms are in 5.0 g of citric acid (CóHg87)? O 1.6 x 10²² Hydrogen atoms O 4.6 ×…

A: Mass of Citric Acid = 5.0 gMolar mass of Citric Acid = 192.124 g/moleMoles of Citric Acid = Mass of…

Q: A 2.25 mol sample of an element has a mass of 51.8 g. What is the molar mass?

A: The sum of the total mass in gram of the atoms present in a molecule per mole is the molar mass or…

Q: How many hydrogen atoms are in a 1.0 g sample of acetic acid, CH3COOH? The molar mass of acetic acid…

A: Mass of acetic acid, CH3COOH sample = 1.0 g Molar mass of acetic acid= 60.06 g/mol Hydrogen atoms…

Q: How many moles of atoms are contained in each of the following? 5.41 x 1024 H2O molecules 30.2 g…

A: Given is, 5.41 x 1024 H2O molecules 30.2 g of Sn.

Q: The commercial production of phosphoric acid, H3PO4, can be represented by the equation 1500 g 298 g…

A:

Q: How many Li atoms are contained in 77.9 g of Li? 5.90 x 1025 Li atoms 7.09 x 1021 Li atoms 8.49 x…

A: Given: Mass of Li atoms = 77.9 g.

Q: How many hydrogen atoms are in a 1.0 g sample of CH3COOH? The molar mass of CH3COOH is 60.06…

A:

Q: What is the mass in grams of each quantity of vitamin D (molar mass 384.7 g/mol), which is needed…

A: Vitamin D is a very important vitamin which is needed for the formation and maintenance of healthy…

Q: Determine the number of atoms in 3.50 g of an unknown substance with a molar mass of 197g/mol. * O…

A: NOTE : Since the number of atoms in each molecule of substance or the formula of substance is not…

Q: What amount (moles) is represented by each of these samples? a. 150.0 g Fe2O3 b. 10.0 mg NO2 c. 1.5…

A: a) Given : Mass of Fe2O3 = 150.0 g

Q: Given 70 g of Cl2,  how many particles of Br2 is produced? Cl2 + 2KBr → 2KCl + Br2

A: The number of particals of Br2 are calculated as :

Q: How many chlorine atoms are present in 9.7 grams ICl3?(6.022 x 1023) ___________atoms

A: We have to calculate the number of Cl atom.

Q: According to the following reaction, how many grams of mercury will be formed upon the complete…

A: 1 mol = 6.022×1023 [Avogadro's number]  The mass of one mole of molecules of a substance is known as…

Q: 6 What is the mass of 2.0 billion billion atoms of gold? (1 billion is 1 x 10^9, so a billion…

A:

Q: A particular vitamin's chemical formula has one cobalt atom. What is the molar mass of the vitamin…

A: Given Percentage of cobalt in molar mass of vitamin = 4.34%

Q: ) What is the molar mass of calci um carbonate CacoO3) ? A) 55 g/mol B) 68 g/mol C) 100 g/mol D) 112…

A: Molar mass is the mass of a compound in units g/mol. It is the sum of atomic masses of element in…

Q: 1.) Determine the molar mass of Mn(ClO4)2. g/mol

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Given molar mass find the mass in grams in each of the following substance 7211 x1024 atoms of…

A: Given is, Atoms of Copper= 7211 x1024 molar mass of Cu = 63.55 g/mol

Q: What is the molecular formula for a compound that has a molar mass of 92.0 g/mol and an empirical…

A:

Q: How many moles are in a sample of ethanol, CH 3CH 2OH that has a volume of 100.0 mL? The molar mass…

A: Mass of ethanol can be determined as follows:

Q: How many grams of Br, are needed to form 65.7 g of AIBr3? 2 Al(s) + 3 Br) 2 AIBr3(a)

A: Since you asked multiple questions so as per Q&A guidelines of portal I solve first question…

Q: How many iron atoms are contained in 354 g of iron O 3.82 x 1024 Fe atoms O 4.69 x 1024 Fe atoms O…

A: 1 mole of any atom is equal to their atomic mass and it has 6.022 × 1023 atoms are present in it

Q: Complete the table below for calculating the molar mass of the ionic compound calcium iodide .…

A: To understand the heneralconcept , you should know some of the given points; •Molar mass is the mass…

Q: How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99…

A:

Q: For the chemical reaction   2KI+Pb(NO3)2⟶PbI2+2KNO32KI+Pb(NO3)2⟶PbI2+2KNO3   what mass of lead(II)…

A: The balanced chemical equation is given below.

Q: A compound is found to have an empirical formula of C2H7O.  Which of the following cannot be the…

A: Empirical formula: It represents the simplest ratio of individual atoms of all elements present in 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.