A drop of water has a volume of approximately 6×10−2 mL . How many water molecules does it contain? The density of water is 1.0 g/cm3.

Q: The density of carbon tetrachloride is 1.59 g/mL. How many chlorine atoms are present in 55 mL of…

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Q: The formula for disulfur decafluoride is S2F10 . a. How many molecules are in 1.57 grams of disulfur…

A: a) Given: 1.57 g of S2F10. The no of molecules are determined as follows,

Q: A container has 5.30 x 1023 molecules (aka atoms) of bromine gas. Calculate the mass (in g) of…

A: A container has 5.30 x 1023 molecules (aka atoms) of bromine gas. We have to calculate the mass (in…

Q: What quantity in moles of potassium atoms do you have if you have 7.50 x 10²² atoms of potassium.…

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Q: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The…

A: The concentration of any substance can be expressed in different ways such as molality, molarity,…

Q: Calculate the mass (in g) of each sample.  5.73x10^20 SO3 molecules

A: Given:Number of molecules = 5.73x1020 molecules.Molar mass of SO3 = 80 g/mol.

Q: Iron is found in Earth’s crust as several different iron com-pounds. Calculate the mass (in kg) of…

A: 1.0  103 kg of iron. Fe2O3 (hematite) Fe3O4 (magnetite) FeCO3 (siderite)

Q: In this quantity of gold? [4.5 9. 64,456 g/mol) in A 55kg woman has 7.5 x 10-3 mol of hemoglobin…

A: The given data contains,  =7.5 ×10-3According to mole concept,1 mole of compound contains 6.022…

Q: How many molecules are in one drop of water if 1.00 g of water contains 3.34 × 10 ²² molecules?…

A: 1 gm is equal to 1 mL. Given 1mL=20 drops.

Q: Galantamine is a drug given to patients who have Alzheimer's disease. Its chemical formula is…

A:

Q: What is the average mass (in grams) of a single carbon dioxide molecule? (a) 3.8 × 10-26 g (b) 7.31…

A: Molecules are formed when two or more atoms of the same or different atoms combine. These consist of…

Q: A beaker contains 48.948.9 mL of carbon tetrachloride (CCl4CCl4, density is 1.591.59 g/mL).…

A: Volume of carbon tetrachloride = 48.9 mL  Density = 1.59 g/mL  Density = mass ÷ volume

Q: 1. Convert 25.2 g into mg. (1000 mg = 1 g) 2. Convert 3 x 105 g into kg. (1000 g = 1 kg) 3. What is…

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

Q: How many molecules are there in 122 grams of NO2?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: How many oxygen atoms are in 34.2 g of dinitrogen trioxide?

A: We have to find oxygen atoms are in 34.2 g of dinitrogen trioxide

Q: The number of atoms of sulfur in 32 g of sulfur is 6.022 x 1023 32 3.2 x 1023 32 x 6.022 × 1022

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Q: A patient is having an allergic reaction and takes a 25.025.0 mg tablet of the over‑the‑counter…

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Q: 105: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it…

A: 105. Given that,  Volume of 1 drop of water = 0.05 mL Density of water = 1 g/mL Mass of 1 drop of…

Q: What is the average mass (in grams) of a single nitrogen dioxide molecule? A. 3.6 x 10-26 g B. 2.77…

A: Since mass of 1 molecule  = molar mass / Avogadro's number Molar mass of Nitrogen dioxide (NO2) = 14…

Q: How many particles are there in 1.43 g of a molecular compound with a gram molecular mass of 233

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Q: How many water molecules are in 6.00 raindrops? Assume that there are 20.0 raindrops in 1.00 mL of…

A: Density is defined as: It is the ratio of mass per unit volume 1 mole of any chemical species…

Q: Assuming gasoline to be pure 2-methylhexane, C7 H16 (actually, it is a mixture of many substances),…

A: Molecules consumed per mile =  5.96 x 1023 molecules We need to find the mass of fuel.

Q: The number of grams of 1.38 x 1022 molecules of C12H22011 is: 0.0229 g 7.84 g 342 g 2.29 g

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: If an atomic mass unit equals 1.66 × 10−24 g, what is the mass in grams of 5.00 × 1022 formula units…

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

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Q: Calculate the mass, in grams, of 402 atoms of lithium, Li

A: Number of moles = number of atoms/6.022 x 1023 atoms  Mass = moles x molar mass

Q: How many molecules are there in 10 grams of N2I6?

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Q: explain why the number of atoms and moles are different when the volumes are nearly identical?

A: 1. The table contains the data required to solve this problem.

Q: What amount of oxygen, O2, (in moles) contains 1.8x1022 molecules? А. 0.0030 В. 0.030 С. 0.30 D. 3.0

A: Given that :- O2 contains 1.8 × 10²² molecules

Q: Calculate the mass in grams of 1.8 x 10^17 KCl molecules

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Q: 9. How many molecules are there in 2.3 grams of NH4SO2? 10. How many grams are there in 3.3 x 1023…

A: 9.)

Q: A sample of C,H, has 9.28 x 1024 H atoms. How many carbon atoms does the sample contain? number of…

A: Interpretation-  To determine the carbon atom in the give molecule C3H8 - To determine the total…

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: The formula for sulfur hexafluoride is . a. How many molecules are in 2.24 grams of sulfur…

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Q: What is the mass in grams of 6.57 × 10²⁵ molecules of N₂? 7.57 × 10²⁵ molecules of O₂?

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Q: A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The…

A: Density of a substance is equal to the mass of the substance divided by its volume. Write the…

Q: 1. How many molecules are there in 150 g of C12H22O11?

A: Given :-we have to find how many moleculerare there in 150 gm of C12H22O11

Q: A 1.58 mole sample of a pure unknown substance has a density of 1.87 g/cm3. If the sample occupies a…

A: Given,Density = 1.87 g/cm3Volume = 188 cm3Mole = 1.58 mole

Q: Samples of several compounds are decomposed and the masses of their constituent elements are shown…

A: Calculate moles of each element by dividing the given mass by their molar mass & convert them…

Q: The number of molecules in 56 grams of water are(Take 6.022*1023=NA

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Q: Sucrose has the molecular formula C12H22O11. If a sucrose sample contains 3.6 x 1024 atoms of…

A: Given,  Molecular formula of the sucrose = C12H22O11  Number of atoms of carbon = 3.6 x 1024 atoms…

Q: What quantity in moles of potassium atoms do you have if you have 3.50 x 1022 atoms of potassium.…

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Q: formula units

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Q: How many grams are in 8.75 x 1025 molecules of l2

A: The molar mass of I2 is 253.81 g/mol that mean this mass of I2 contain 6.022×1023 of I2 per mol.

Q: A drop of water has a volume of approximately 6 • 10^-2 mL. How many water molecules does it…

A: Volume of water =6×10-2 mL Density of water = 1 g/mL So, mass of water =6×10-2 g

Q: How many molecules are in 7.10 grams of xenon trioxide?   What is the mass in grams of 1.07x10^22…

A: Welcome to bartleby !

Q: How many molecules are there in 87.4 g + grams of ammonia, NH3?

A: 1 mole = 6.022×1023 [Avogadros number ]  The mass of one mole of molecules of a substance is called…

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

Q: The formula for carbon tetrafluoride is CF4   A.How many molecules are in 4.19 grams of carbon…

A: The formula for carbon tetrafluoride is CF4 Molar mass of CF4 = 88 g mol-1

Q: How many grams are in 5.32 x 10^22 molecules of CO2

A: Given,Molecules of CO2 = 5.32*1022 molecules. Molar mass of CO2 = 44.01g/mol.

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.