moles of S ar

Q: What mass of c37h49n2o12 would contain 4.35g of oxygen? What is the mass of exactly 1500 molecules…

A: Answer:- This question is answered by using the simple concept of calculation of molar mass using…

Q: is the mole ratio be

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Q: Calculate the number of (a)nitrogen molecules (N2 molecules) (b)nitrogen atoms(N atoms) in 0.111g of…

A: Since 0.111 g of nitrogen gas will have moles = mass/molar mass molar mass of N2 = 28 g/mol Hence…

Q: how many moles are in 13.4 g CaS?

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Q: Beryllium is a light metal used to fabricate transparent X-ray windows for medical imaging…

A: Number of moles = mass/molar mass given mass of Be = 3.24g molar mass of Be = 9.01g/mol Number of…

Q: a) If 76.4 g of C₂H3 Br3 is reacted with 49.1 grams of O₂ to produce carbon dioxide, water, and…

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Q: How many moles of hydrogen atoms are in a 3.5 g sample of H2 gas?

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Q: how many Sn atoms are in a 48.7 g sample of Sn?

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Q: Sam wanted to perform a chemical reaction using 8.22 moles hydrogen gas and 4.11 moles of oxygen gas…

A: To Calculate mass from moles , we would use formula :  Mass = Moles × Molar mass

Q: Aluminum has the density of 2.70g/cm3 . How many moles are in a 13.2cm3 block of the metal…

A: At the standard temperature and pressure conditions, density of a substance is given by:

Q: A piece of jewelry requires 0.703 moles of silver. How many grams of silver is needed?

A: Given Moles of Silver is 0.703 moles.

Q: If 4.41 g of nitrogen react with 2.00 g of hydrogen to produce ammonia, what is the limiting…

A: The reaction taking place is: 3H2  +  N2  →  2NH3 In general, 3 moles of H2 reacts with 1 mole of N2…

Q: • Sodium metal reacts with hydrogen to form sodium hydride (NaH) 2Na + H,-------> 2 NaH f 10 grams…

A: Recall the data, mass of Na =10 g, molar mass = 23 g mol-1 mass of H2= 8 g , molar mass = 2 g mol-1…

Q: When 3.00  mol of Al and 1.50  mol of chlorine gas combine, how many moles of aluminum chloride will…

A: The balanced chemical equation for the reaction between aluminum and chlorine gas to form aluminum…

Q: 10.5 g of NaN3 is decomposed into solid sodium and nitrogen gas. What is the percent yield of sodium…

A: The problem is asking us to calculate the percent yield of sodium. The percent yield is the ratio of…

Q: How many moles of oxygen gas are present if there are 4.35 x 1025 atoms of oxygen in the sample?

A: answer = 36.11 moles of oxygen gas.

Q: A molecule has an empirical formula of NO. If the molar mass of the molecular formula is 117g/mol,…

A: We have to calculate the molecular formula.

Q: How many particles are contained in a 1.55L sample of gaseous HNO₂ @STP? Use only the following…

A: The given information is as follows:                      The volume of sample of gaseous HNO2 =…

Q: How many moles of CF4 are there in 171g of CF4

A: No. Of moles = given mass / molar mass  Given mass is 171g  Molar mass is calculated in 2 step.

Q: Solid aluminum (Al) and chlorine (Cl,) gas react to form solid aluminum chloride (AICI,). Suppose…

A: For getting limiting reagent we have to divide by stoichiometry coefficient to the each substance…

Q: When xenon tetrafluoride reacts with water it produces xenon element, xenon trioxide, hydrogen…

A: Given, xenon tetrafluoride reacts with water and produces xenon elementxenon trioxide, hydrogen…

Q: Identify the value of Avogadro’sconstant, and describe the meaning ofmolar mass

A: The value of Avogadro's number = 6.022 x 1023 . Molar mass : mass of one mole substance is known as…

Q: A reaction produces 0.867 moles of H₂O. How many molecules of H₂O are produced?

A: Moles= 0.867 moleFind out molecules

Q: How many moles of Ca atoms are in 1 mol of CaSO4?

A: Mole concept The amount of a substance can be expressed using a convenient method called mole…

Q: If I have 377.7g of Cu1O, how many moles do I have?

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Q: When this equation is balanced with the lowest whole number coefficients, what is the coefficient…

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Q: 2. How many moles of water are e produced when 3.5 moles of hydrogen reacts with oxygen?

A: The balanced chemical reaction can be written as, 2H2+O2→2H2O

Q: How many moles of oxygen are formed when 58.6 g of KNO3 decomposes according to the 3) following…

A: The balanced chemical reaction is  4KNO3(s) ---->2K2O(s).  +2N2(g).   +5O2(g) 4.0 mol.…

Q: Hydrogen  H2  gas   and oxygen  O2  gas react to form water  H2O  vapor. Suppose you have 5.0…

A: •As here H2O is product and we know amount of product is decided by limiting reagent always. •So…

Q: What would be the number of moles for calcium arbonate if it is  66.0 g T, also the mass.

A: Molar mass of calcium carbonate that is Caco3 is 100g/mol

Q: What is the mole ratio of all the substances represented in this figure?

A: A mole ratio can be described as ​the ratio between the amounts in moles of the any two compounds…

Q: A reaction produces 0.853 moles of H2O. How many molecules of H2O are produced?

A: Explanation Molar mass The mass of one mole of any substance in grams is called its molar mass.…

Q: determine the number of moles of 44g of Pm

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

Q: What mass of hydrogen gas H2 is present if there are 5.00E23 atoms of hydrogen?

A: Given: Atoms of hydrogen are 5.00×1023 To find: Mass of hydrogen gas

Q: How many moles of C6H6 will react if 7.5 moles of oxygen react?

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Q: Determine the number of K atom and the mass of K found in 0.200 mol of KOH.

A: Since each molecule of KOH has 1 K atom present in it Hence moles of K = moles of KOH = 0.2 Hence…

Q: How many moles are in 27.00 g of H2O?

A: Given: given mass of H2O =  27.00g

Q: How many moles of oxygen are contained in 1.33 moles of CaCO3?

A: 1 molecule of CaCO3 has 3 atoms of oxygen. Moles of oxygen atoms in 1.33 moles of CaCO3 = 1.33 x 3 =…

Q: A gas that is produced when fruit ripens contain 85.62% C and 14.38% H by mass. The molecular mass…

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Q: The mass of water produced from 0.839 mol of ammonia

A: As given in the question- The reaction which leads to the formation of water using ammonia is the…

Q: What is the mass in grams of one mole of NH3?

A: Applying concept of mole n= w/M

Q: What is the total number of moles of aluminum oxide that can be formed when 4 moles of aluminum…

A: Answer:- This question is answered by using the simple concept of writing the balanced chemical…

Q: Convert 18.9 moles KMnO4 to grams of KMnO4

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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.