In 100.5 g of water (H2O), how many total atoms are there?

Q: If the molecular mass of an oxide of nitrogen is 108 and 4.02 g of N combine with 11.48 g of O, what…

A: Given, Given mass of nitrogen = 4.02 g Molar mass of nitrogen = 14.01 g/mol Given mass of oxygen =…

Q: How many bromine molecules, Br2, have a mass equal to 31.8 g?

A: 1.20 *10^23 molecules.

Q: How many silicon atoms are there in 1.00g of silicon?

A: Given: Mass of silicon=1.00 g Mass of 1 mole of silicon=28.0855  g

Q: Suppose you have a sodium sample weighing 11.42 g. What mass of potassium would you need to have the…

A: Given, Mass of Na =11.42 g

Q: 2. Which compound (C12H22011 or NH,CI )contains the most total number of atoms?

A:

Q: 3. What mass of Al contains the same number of atoms as 3.0 g Pb7 a. 23 g b.0.014 g C. 3.0g d. 0.39…

A: 3. mass of Pb = 3.0 g molar mass of Pb = 207.2 g/mol moles of Pb = 3.0 g / 207.2 g/mol…

Q: How many moles of iron are present in 3.15 x 1024 atoms of iron?

A: One mole of any substance is equal to 6.023 x 1023 units of that substance ( such as atoms, ions, or…

Q: How many atoms of hydrogen are there in NH4+?

A: Given-> (NH4)^+

Q: How many moles of atoms are there in 2.12 x 10 43 atoms of Nickel?​

A: 1 mole = 6.022×1023 [ Avogadro's number ] If any metal consists of 6.022×1023 atoms it is said to…

Q: 3) How many total atoms are there in 34.2 g of CH3CO2H?

A: Given, amount or mass of CH3COOH =34.2 gwe are asked to calculate the total number of atoms in 34.2…

Q: ow many moles of H2O does 1.2 x 1024 molecules represent?

A: Given,  1.2 x 1024 molecules of H2O

Q: How many Atoms are there in C6H12O6 ?

A: Atoms are the basic building blocks of all matter. They can combine to form molecules, whose…

Q: How many Atoms are there in 6CO2

A: We know that atoms are the smallest unit of matter.

Q: What is the mass in 3.52 x 10^23 water molecules?

A: mass of 3.53 ×1023 molecules is 10.45g

Q: What is the mass, in grams, of each of the following samples? a.) 2.75 mol of iron, Fe  b.) 0.115…

A: Mole of solid sample is calculated by below formula,

Q: A sample of Fe(H2PO4)3 that contains 12 000 oxygen atoms must also contain how many phosphorus…

A: Given Number of oxygen atoms = 12000 To find number of phosphorus atoms

Q: White sand is made of silica (silicon dioxide, or SiO2), which has a density of 2.20 g/cm³. How many…

A:

Q: A sample of cyanic acid, HCN, contains  3.33 x 1022 atoms. a. How many moles of cyanic acid are in…

A:

Q: A typical silicon chip has a mass of 2.3 x 10-4 g. Assuming the chip is pure silicon, how many…

A: Given that the mass of silicon chip is 2.3×10-4 g. The number of moles can be calculated using the…

Q: Find the mass of 1 molecule of NO in gram. а. 4.98 х1023 b. 30 C. 4.98 x10-23 d. 15

A: According to mole concept, mass of Avogadro number (6.022 × 1023) of molecules is equal to the molar…

Q: A sample of hydrogen has a mass of 40.2 grams.  How many H atoms are there in the sample?   How…

A: Given that,mass of hydrogen = 40.2 gMolar mass of hydrogen = 2.016g/molmoles of hydrogen = mass of…

Q: A 2.41 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.30 x 102…

A: Given: Number of molecules of N2O =3.30×1022 molecules And mass of N2O sample =2.41 g

Q: How many grams of sugar C12H22O11 that consists of 1.25 x 1024 atoms of hydrogens?

A: Given that ; We have to determine the mass of sugar (in g) that consists of 1.25 x 1024 atoms of…

Q: 1. Calculate the mass of each sample. a. 1.05 x 10 26 atoms of neon, Ne(g) b. 8.72 x 1021 molecules…

A:

Q: How many atoms are contained in 100.5 g of liquid mercury, Hg?

A: Moles of Hg atoms = given mass molar mass of Hg=number of atoms of HgAvogadro's number  100.5…

Q: How many atoms of nitrogen are there in 5.00 g N?

A: We have to predict the number of atoms of N.

Q: If you have a sample of 24.31 g magnesium (Mg), which is equal to one mole, how many atoms of…

A: Given that Amount of magnesium (Mg) = 24.31 gram  Which is equal to 1 mole To answer this problem ,…

Q: What is the mass of a sodium nitride sample,NA3N, which contains 9.76*1012 atoms of sodium?

A: Given that the number of atoms of sodium in sodium nitride is 9.76*1012 atoms. Using the…

Q: A 2.62 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.59 x 1022…

A: Given  (a)   Mass = 2.62 gram       Number of molecule of N2O  =  3.59 × 1022 molecule       Number…

Q: Determine the mass (in grams) of aluminum present in 1.08 grams of Al2S3?

A: Molar mass of the elements is equal to the sum of the atomic masses of all the elements. Molar mass…

Q: How many fluorine atoms are there in 5.45 x 1028 molecules of carbon tetrafluoride

A: Given: molecules of carbon tetrafluoride CF4=5.45×1028

Q: A sample of glucose, C6H12O6, contains 1.240×1021 carbon atoms. How many atoms of hydrogen does it…

A:

Q: How many moles of iron are present in 3.15 x 10 24 atoms of iron?

A: Number of atoms of iron = 3.15 × 1024 atoms.  Number of moles of iron = ?

Q: how many grams are in 4.46 x 10 24 atoms of carbon?

A: Number of carbon atoms present = 4.46 x 1024 Atomic mass of carbon is 12 grams Atomic mass means the…

Q: How many sulfur atoms are in 45.0 g sulfur? Could you please show me how you set it up.

A: 1 mole of any substance contains  6.023 ×1023

Q: A 2.37 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 3.24 x 1022…

A: Given that : The mass of N2O sample = 2.37 g Number of molecules of N2O = 3.24 x 1022

Q: calculate the number of atoms in 1.72 grams of barium

A:

Q: How many atoms of hydrogen are there in 1 kg of methane (CH4)?

A:

Q: How many sulfur atoms are there in 21.0 g of Al2S3?

A: Given information: Mass of Al2S3 = 21.0 g

Q: How many silver atoms are there in 5.71 moles of silver?

A:

Q: What is the mass of 4.12 x 10^23 water molecules?

A: The number of water molecules is = 4.12×1023 molecules The mass of these molecules is =?

Q: How many moles of C,H, contain 4.96 x 10 24 hydrogen atoms?

A: The number of moles of C3H8 required can be calculated by using the unitary method. C3H8 (propane)…

Q: How many atoms of hydrogen are in 2.44E1 g of methane?

A:

Q: How many moles would 1.00 x 103 molecules of methane ( 1. CH4) represent?

A: Avogadro number (NA) 1 mole of a substance contains 6.02×1023 molecules 1 mole of O2 contains…

Q: toms are there in 400.5 grams of Silicon? A V-M. G a. b. 6.77 X 1027 atoms 8.58 X 1024 atoms С.…

A:

Q: How many moles of lithium are there in 1.204 X 1024 lithium atoms?

A: How many moles of lithium are there in 1.204x1023lithium atoms ?

Q: A 1.98 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 2.71 x 1022…

A:

Q: How many moles of boron, B,B, are in 1.69×1024 B1.69×1024 B atoms?

A: Consider the given information is as follows; Number of boron (B) atoms = 1.69×1024           Moles…

Q: How many H atoms are there in 40 molecules of C6H6?

A: Given that, 40 molecules of C6H6

Q: How many Hydrogen atoms are there? 4H,0

A: We have given that  No. Of mole of H2O = 4  1 mole water contain 2 mole hydrogen atom and 1mole of…

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.