How many molecules are contained in two 270.-mg tablets of petricillin

Q: Calculate the number of grams of sodium in 8.2 g of each of the following sodium-containing food…

A: Given compounds are : a). NaCl (table salt) b). Na3PO4(sodium phosphate) c). NaC7H5O2 (sodium…

Q: Calculate the number of grams of F in 7.63 grams of copper(II) fluoride

A: The chemical formula of copper(II) fluoride is CuF2 . We know that molar mass of CuF2 = 101.54 g/mol…

Q: A 52 kg woman has 8.6x10-3 mol of hemoglobin (molar mass = 65323 g/mol) in her blood. How many…

A: Given, moles of hemoglobin = 8.6 x 10-3 mol We know, => molecules of hemoglobin = moles of…

Q: How many particles does 4.65x10^-2 kg iron(lll) contain?

A: Given data contains, Mass of iron (III) is 4.65x10-2 kg=46.5 g. Molar mass of iron (III) is 55.84…

Q: One relatively common compound used in plastics manufacturing is composed of 24.3% carbon, 4.1%…

A: Given that One relatively common compound used in plastics manufacturing is composed of 24.3%…

Q: How many molecules are present in one mole of water, H2O? Express your answer in scientific…

A: An atom is mainly composed of three sub-particles; electrons, protons and neutrons. These particles…

Q: 16) How many molecules of butane are contained in 25.0 mL of butane? The density of butane is 0.6011…

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Q: How many moles are contained in a sample of aluminum oxide, Al2O3, that weighs 20.4 grams? Convert…

A:

Q: A chemist adds 365.0 mL of a 2.1 mol/L nickel(II) chloride (NiCl,) solution to a reaction flask.…

A: Molarity is the moles of substance present per unit volume. Molarity = moles of solute / volume By…

Q: Mass of Zn 2.44 g Mass of Cu 0.063 g The mass of Zn and the mass of Cu in a coin are given in the…

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Q: Water has a molar mass of 18.0 grams H2O per mole of H2O. How many moles of H2O are in 9.00…

A: Note: 1000 mg = 1 gmass of H2O = 9.00 milligrams = 0.009 gramsmolar mass of H2O = 18.0…

Q: which of the samples have the large numbers of molecules H2S04 ? (Atomic mass H = 1, O=16 S= 32) * O…

A: Given data, Atomic mass of H = 1g/mol Atomic mass of O = 16 g/mol Atomic mass of S = 32 g/mol

Q: How many molecules of butane are contained in 25.0 mL of butane? The density of butane is 0.6011…

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Q: How many MOLECULES of water are present in 9.27 grams of this compound? A) 7.10 x 1023 molecules H,0…

A:

Q: What mass of chlorine is contained in 80.3 g of ZnCl2?

A: %w/w = (mass of chlorine in ZnCl2/mass of ZnCl2) × 100

Q: What is the molar mass of C7H1004? Express your answer in units of grams per mole. Provide your…

A: Given  Formula of compound = C7H10O4 Molar mass = ?

Q: How many hydrogen atoms are in 3.10×1025 water molecules?

A: The objective of this question is to find out the number of hydrogen atoms in a given number of…

Q: How many molecules are in each sample? 69.0 g N2 (Express your answer using three significant…

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: A beaker contains 70 mL of water. How many molecules of water does this beaker contain? (hint: the…

A: Given: The volume of water = 70 mL The density of water = 1 g/mL Standard data: The molar mass of…

Q: QUESTION 10 Hexane (C6H14) is a common solvent used in extraction of oils from seeds or vegetables.…

A: 10.) Given;

Q: A 4.90g sample of barium bromide is reacted with 11.7g of silver (i) nitrate to form silver (i)…

A: The balanced chemical equation for the given reaction is shown below.

Q: How many grams are in 1 Eq of Ca 2+

A: Answer: grams of 1 Eq of Ca2+ is 20g Below I have shown 2 method to calculate grams of 1 Eq of Ca2+

Q: Regular treatment with low dose aspirin is used to help prevent cardiovascular disease. How many…

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Q: Fluoride ion is added to drinking water to prevent tooth decay. What is the mass in grams of sodium…

A: Given Formula units = 1.19 × 1019

Q: Determination of Hydrate Formula: barium chloride hydrate  Data:…

A: While heating the hydrate BaCl2.nH2O, the water in it escapes as water vapor. The amount of salt…

Q: 3. How many water molecules are in 2.00 liters of water? The density of water is 1.00 g/mL.

A: Density of water = 1.00 g/mL It means 1.00 mL water contains 1.00 g

Q: A definiency in thhe vitamin nicotinamide results in the dietary deficiency disease pellagra,…

A: Given, the molecular formula for nicotinamide is C6N2H6O. We have to find the percent composition by…

Q: Selenium dichloride, SeCl2, has a molar mass of 149.86 g/mol.  What is the mass in grams of 0.325…

A: Given, moles of SeCl2 = 0.325 moles molar mass of SeCl2 = 149.86 g/mol mass of SeCl2 = ?

Q: If each of the 100 million automobiles contains 1.3 kg of CFC−12 and leaks 29 % of its CFC−12 into…

A: Given : Mass of CFC-12 in each automobile = 1.3 Kg Mass percent of CFC-12 that leaked per year = 29…

Q: osmium by mass. a) If you assume 100.0 g of the compound, what is the mass in grams of osmium that…

A: Since you have posted a question with multiple sub- parts, we will solve first three sub- parts for…

Q: What are the reactants needed to make 150 grams of calcium carbonate?

A: The formation of compounds need their specific reactants under suitable temperature and pressure…

Q: 1: How many carbon atoms are present in a mole of ¹2C? 12 Express your answer using four significant…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How many grams would a 18.615 mole sample of a substance weigh if its molar mass was 399.76 grams…

A: Formula to calculate mole:- Mole = mass ÷ molar mass

Q: How many molecules of H2O would be found in 54.05 grams of water?    choices: 3.252 x 1025 molecules…

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Q: Herbimycin is an herbicide with the chemical formula C30H42N2O9. Answer the questions below…

A: Note: As per our guidelines, we are supposed to answer only three subparts when multiple subpart…

Q: 3. How many grams are in 2.35 moles of calcium phosphate, Ca3(PO3)2?

A: Given - - > No of moles of Ca3(PO3)2= 2.35 mol We know that,  Molar mass of Ca3(PO3)2 = 278.1779…

Q: The U.S. recommended daily allowance (RDA) of vitamin C, C6H8O6, is 60.00 mg. Calculate the number…

A: Molecular mass is the mass of a given molecule. It is measured in amu. Different molecules of the…

Q: Convert 1.80 x 1024 formula units of copper (II) nitrate to moles. Express the answer by rounding to…

A: We know that ; 1 mol of substance contain  = 6.022 x 1023 formula units   By this we can calculate…

Q: For each of the following gemstones, determine the mass of compound present in the given moles of…

A: Given  1) Formula = Be3Al2(SiO3)6     Number of mole = 0.0170 mole        mass    = ? 2) Formula   =…

Q: What is the molecular formula of a compound with the empirical formula BBr, and a formula mass of…

A:

Q: How many grams are in 8.37x10^10 particles of Li2S04?

A: Given Number of particles of Li2SO4 = 8.37×1010

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. What quantity in molecules of C₆H₈O₆ does a…

A: To find molecules of vitamin C, first convert mass in grams then divide it by molar mass to get its…

Q: them from smallest to largest by mass. 0.75 mol H20(liq) 7.0 g N2(g) 0.55 mol Ar(g) 0.45 mol N2(g)

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Shelly the speedy chemist did not heat her crucible prior to the addition of the hydrated salt.…

A: Given : The chemist did not heat her crucible prior to the addition of the hydrated salt.

Q: Calculate the number of grams of sodium in 7.5 g of each of the following sodium-containing food…

A: The number of moles of a species is calculated by expression (1) in which n is the number of moles,…

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.