A drop of water has a volume of approximately 0.05 mL. How many water molecules does it contain? The density of water is 1.0 g/cm^3.

Q: How many atoms of silver are in a bracelet that weighs 34.0 g? O 1.1 x 1023 O 1.1 x 106 O 1.9 x 1023…

A: We have to calculate the number of atoms.

Q: 2. If the mass of H4X3 is 40 g, then X must represe (1) O (2) CI (3) Kr (4) C

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Q: What mass of cerussite, PbCO3, would contain 35.0 grams of lead? (a) 51.7 g (b) 42.4 g (c) 35.6 g…

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Q: 19.78 mL of bromine contains 6.022 x 1023 bromine molecules. How many bromine atoms are in 3.00 L of…

A: Given -> Volume (V1) = 19.78 ml = 0.01978 L (1L = 1000 ml) Number of bromine molecules in V1=…

Q: 5. Aspirin has the formula CyH3O4. How many atoms of oxygen are there in a table weighing 360 mg? a.…

A:

Q: Suppose you are given 2.50x 104 pg of aluminum sulfate, Al(SO4)ls (s) (density = 2.672 g/cm³) a. How…

A: a) In the first problem we need to find out the number of oxygen atoms present in the given sample.…

Q: A drop of water has a volume of approximately 6×10−2 mL . How many water molecules does it contain?…

A: Relation between mass and number of molecules is:

Q: What is the mass in grams of 1.15 x 10^24 atoms of manganese?

A: 1 mol Mn has mass equal to  59.94 g  1 mol Mn = 6.022 × 1023  atoms of Mn

Q: The mass ratio of sodium to fluorine in sodium fluoride ls 1.21:1. A sample of sodium fluoride…

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Q: Which of the following samples of gases contains the greatest number of atoms? (Relative atomic…

A: 4th option is correct that is 13.0 g of C2H6

Q: If there are 7.28 x 1022 molecules in a sample of CH4, what is the mass of this sample in grams? O…

A: Molecular wt. of CH4 = Molecular Wt. Of C + (4 * Molecular wt. of H) = 12 g/mole + (4 * 1 g/mole ) =…

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: Sodium is an alkaline metal which is very reactive and so is not found free in nature. Sodium forms…

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Q: A 3.17 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 4.34 x 1022…

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Q: What is the mass of 3.30 x 1023 atoms of silver, Ag? 25.8 g 59.1 g 85.7 g 197 g 0.549 g

A: We will use formula of mole and mass to get answer. Number of atom = 3.3×1023

Q: If liquid bromine has density = 3.12 g/mL, how many Br2 molecules are present in a 1.0-mL sample of…

A: Given: Density of liquid bromine (d) = 3.12 g/ml The volume of liquid bromine =1.0 ml To find:…

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: A sample of CO2 has a mass of 50.0 grams. What is the number of molecules of carbon dioxide in the…

A: We know,Number of mole = mass of sample (g)molar mass (gmol-1)and1 mol = 6.022x1023 molecule

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: • Sucrose: C12 H22O11 • Copper (I) Chloride: CuCl • lodine: I2 • Potassium lodide: KI Our goal is to…

A: The three main factors that affect the conductivity of a solution are:  The concentration of…

Q: A. What is the mass in grams of 1.11 x 10^24 atoms of zinc? B.How many zinc atoms are there in 28.5…

A: We’ll calculate the mass of Zn and the number of atoms present in Zn by applying simple mole concept…

Q: A mixture consisting only of lithium chloride, LiCl, lithium carbonate, Li2CO3, and lithium nitrate,…

A: Introduction to Elemental Analysis In the process of elemental analysis, a sample of a substance…

Q: A nanotechnology experiment requires 3.60x 1019 atoms of potassium. What is the mass of this sample?…

A: Given  number of atoms of potassium = 3.60 x 1019 atoms To find mass of this sample. Required data -…

Q: 1-How many oxygen atoms are there in 1?25 x 1018 water molecules?

A: Number of water molecule = 1.25 × 10^18molecule

Q: What is the mass of oxygen atoms in 0.305 moles of Fe(CO)5 ?

A: 1 mol Fe(CO)5 contains 5 moles of oxygen atom. Mass of oxygen = number of moles of oxygen × molar…

Q: A sample containing NaCl, Na,SO, and NaNO, gives the following elemental analysis: Na: 33.807…

A:

Q: a. What is the mass in grams of 1.48 X atoms of krypton? grams b. How many krypton atoms are there…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: what is the mass in grams of 1.49 x 10^17 chromium atoms?

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

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Q: 55: A sugar crystal contains approximately 1.8*107 sucrose (C12H22011) molecules. What is its mass…

A: To calculate the mass from molecules, we need to calculate the number of moles of a substance in the…

Q: Complete the table, and then analyze the data to determine if Compounds Iand II are the same…

A: The concentration of a substance can be measured in terms of mass by mass percentage. This…

Q: 1) What is the mass in grams of 6.86x10^23 atoms of manganese? 2)How many manganese atoms are there…

A: 1)  Number of moles of manganese = number of atoms (given) / number of atoms in 1 mole number of…

Q: Stibnite, Sb2S3, is a dark gray mineral from which antimony metal is obtained. What is the mass…

A:

Q: Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown…

A: Given: Percent mass of carbon = 67.31 %. Percent mass of hydrogen = 6.978 %. Percent mass of…

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: How many atoms (total) are present in a 3.45 x10-2 m3 sample of Al2O3, which has a density of 3.95…

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Q: What is the mass in grams of 4.50 x 10^20 particles of aluminum sulfate

A: Given: The number of particles=4.50 x 1020 Mass of aluminum sulfate =? The molar mass of aluminum…

Q: A chemical compound containing hypothetical elements Av, Bw, Cx, Dy, Ez has mass percentages of…

A: We have to determine the Molecular formula of a compound having following hypothetical elements.

Q: What is the mass of 8 atoms of copper in grams? 8.44 x 10-22 g 1.33 × 10-23 g X 508 g 7.58 x 1022 g…

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Q: Describe the PHYSICAL PROPERTIES of the following substances Specifically, what type of matter is…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: you have 13.02 x1023 atoms of nitrogen, what would you expect its mass to be?

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

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Q: A sample of C, H, has 4.64 x 1024 H atoms. How many carbon atoms does the sample contain? number of…

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Q: What is the mass, in grams, of 7.82 x 1016 molecules of oxygen?

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Q: A metal (M) forms a compound with the formula MCl3. If the compound contains 65.57 % Cl by mass,…

A: Assume 100 g of the compound is present. This turns percent into mass.Given 65.67 % of chlorine by…

Q: Calculate the mass, in grams, of 762 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g). 7.07 x…

A: Given : Number of atoms = 762 And atomic mass of Fe = 55.85 g/mol

Q: Ca(OH)2 (aq) + PO43- (aq) → Ca5OH(PO4)3 (s) + OH- (aq) A) What is the mass of calcium (in grams)…

A: Principle of mass conservation states that the mass of a closed system stays conserved during the…

Q: The indigo dye used to color blue jeans has the formula C6H1ON2O2. How many molecules of indigo are…

A: Given :- amount of C6H10N2O2 = 50.0 g  To calculate :- total number of C6H10N2O2 molecules

Q: A 3.69 g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.05 x 1022…

A: a.The total number of nitrogen atoms in 3.69g sample of nitrous oxide is calculated as,

Q: a. What is the mass in grams of 5.01 x 1023 a. What is the mass in grams of 5.01 × 10° atoms of…

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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.