How many water molecules are in 23.7 g of water

Q: A 58.5 g sample of an unknown compound that contains only carbon, hydrogen and oxygen was analyzed…

A: mass of hydrogen present in the unknown compound is approximately 4.00 gramsExplanation:Step 1:-…

Q: Complete the table. Number of Particles (atoms Substance Mass Moles or molecules) Ar 4.5 x 10-4 NO2…

A: Ar : Mass of Ar = moles x molar mass                   = 4.5 x 10-4 x 40                   = 1.80 x…

Q: How many total atoms are in 78.6 g of iron (II) chlorate?

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Q: How many moles are in 33.1 g of SO3? How many molecules does it contain?

A: Amount of SO3 given = 33.1 g Moles Of SO3  = To be determined No of Molecules of SO3 = To be…

Q: How many molecules are in 502.1 g of LIF?

A: Mass of LIF = 502.1 g Molecular weight = 25.939 g/mol Molecule= ?

Q: How many grams of carbon tetrachloride are in 1.01 x 1024 molecules?

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

Q: If a fertilizer contains 14.0% nitrogen by mass, how many grams of nitrogen are in 4.15 kg of…

A: fertilizer contains of 14.0% nitrogen  mass of nitrogen = 4.15 kg  We have calculate the how many…

Q: What is the mass in grams of 3.5 x 10 24 molecules of water?

A: 1 mole of water is 18.015 g and contains 6.022×1023 molecules of water.

Q: How many molecules are in 75.8 g of C6H12O6 ?

A:

Q: A student weighs out 94.53 grams of sodium permanganate, NaMnO4.  How many moles of NaMnO4 is this?…

A: Moles— It is the ratio of given mass of a compound to its molar mass  Mole = given mass / molar mass…

Q: What is the mass, in grams, of 7.70×1020 molecules

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Q: How many hydrogen atoms are in 23.7 g of water

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Q: How many grams of Cl are in 105 g CaCl2?

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Q: The atomic mass of Cl is 35.45 amu, and the atomic mass of Al is 26.98 amu. What are the masses in…

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Q: How many formula units of magnesium chloride are there in 5.2 grams?

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Q: How many MOLECULES of water ,H2O , are present in 8.93 grams of this compound? _____ molecules How…

A: a. It is given that the mass of water molecule is 8.93 g.Thus, the number of moles of water can be…

Q: Which of the following has more atoms: 4.04 g of helium atoms or 16.1 g of gallium atoms? 4.04 g of…

A:

Q: How many moles are in 25.3 grams of NaCl?

A: Given :- mass of NaCl = 25.3 g  To calculate :- number of moles of NaCl

Q: 4.88×1020 H2O2H2O2 molecules Express your answer using three significant figures.    Calculate the…

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: Vitamin B12 , cyanocobalamin, is essential for human nutrition. It is concentrated in animal tissue…

A: The molar mass of cyanocobalamin is calculated using cobalt’s molar mass in step two.

Q: How many molecules of water are present in 3.4 g of water?

A: A numerical problem based on mole concept, which is to be accomplished.

Q: What is the mass of 5.27 × 1021 water molecules

A: The relationship between mass and moles is Mass = Mole×Molar mass 1 mole of any substance contains…

Q: Assume you have 38.0 grams of CO (carbon monoxide), which is a molecular compound. How many…

A:

Q: How many molecules of methane (CH4) are in 15.0 g of methane?

A: Number of molecules = moles X Avogadro's number  where Avogadro's number = 6.022 X 1023  Since moles…

Q: How many CHCl3 molecules are there in 24.5 gg of CHCl3.

A: The molar mass of CHCl3 is 119.5 g/mol. That is 1 mole has 119.5 g. We know that one mole has…

Q: How many grams of ClCl are in 21.1 gg CF2Cl2

A: First concert mass into mole by dividing molarity mass  Then use mole-mole relationship to get…

Q: Using the initial mass 1.510 g and the molecular formula of the hydrate CuCl2​⋅2H2​O). Predict the…

A: Mass of compound = 1.510 g Mass of water produced on heating the compound = ?

Q: How many molecules of water, H2O, are present in 75.0 g of H2O?

A: • 1 mole = 6.023 x 1023 molecules.   1 mole = molar mass.   1 mole of H2O Contain = 6.023 x 1023…

Q: One molecule of a compound weighs 2.93 x 10-22 g. The molar mass of this compound is:

A: 1 mole = 6.0224 × 1023 molecules Molar mass = 6.0224 × 1023 × Molecular mass

Q: How many grams of Mg are in 523 g of

A: Magnesium oxide formula is MgO and it's molecular mass = 24 + 16 = 40 g  We have to calculate 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.