How much did the 50 mL of water weigh? Approximately how many molecules are there? How many atoms of hydrogen are there? Atoms of oxygen? How many water molecules do you drink per day? How many mL of water should you weigh out to have one mole of water? The measure water + beaker is 139.6020 grams Beaker alone without water measure 90.601 grams

Q: A chemist measures the amount of oxygen gas produced during an experiment. He finds that 6.63 g of…

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Q: The common pain relievers – aspirin (C9H8O4), acetaminophen (C8H9NO2), and naproxen sodium…

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Q: An aluminum atom has a mass of 4.48×10^-23 g and a small airplane has a mass of 5000. kg. Use this…

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Q: How many atoms are contained in 18.50 mL of water (d = 0.997 g/mL)?

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Q: Draw the major product of the aldol addition reaction between two of these ketones with the…

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Q: e mass of 1

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Q: How many atoms of hydrogen are in 2.22E1 g of methane?   Respond with the correct number of…

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

Q: A 0.7547 g sample of nicotine was analyzed and found to consist of 0.5588 g C, 0.06565 g H, and…

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Q: A 13.7 kg sample of this new "compound" is separated into its component "elements" with the…

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Q: QUESTION#1: TOPIC: Limiting reactants Gaseous ethane (CH3CH3) will react with gaseous oxygen (O2)…

A: Applying concept of limiting reagent.

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A: A number that showing perfect exactly value  , it contain infinite number of significant figure.

Q: How much does it weigh in grams

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Q: Complete each row of the table below by filling in the missing prefix or missing exponent. 1…

A: Complete each row of the table below by filling in the missing prefix or missing exponent.

Q: Macmillan Sucrose (table sugar) has a molar mass of 342.30 g/mole. How many sucrose molecules are in…

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Q: How many atoms are contained in 4.1 g of carbon? How can you round this answer to 2 significant…

A: 1 mole of any substance contains 6.023×1023 atoms.1 moles of carbon atoms weigh 12 g.

Q: Platinum has a density of 21.45 g/cm³ 25 °C. On the other hand, water at this temperature has a…

A: Given - Density of platinum at 25°C = 21.45 g/cm3            Density of water at 25°C = 0.99997 g/ml…

Q: You have two beakers on your lab table.  Beaker #1 contains 32.07 g of sulfur and Beaker #2 contains…

A: Given mass of Sulfur (S) = 32.07 g Given mass of Arsenic (As) = 74.92 g Molar mass of Sulfur =…

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Q: the mole is a common unit of measurement in chemistry you mat not be faniliar with mikes but one of…

A: Given : Mass of water i.e H2O = 290 g And mass of 1 mole of water = 18 g

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Q: 1. A sample of CaCl2 with a mass of 34.5 g was treated in such a way that all of its calcium was…

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Q: Calculate the number of nitrogen atoms in a 50.0 g sample of dinitrogen tetroxide (N₂04). Be sure…

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Q: A sample of ammonium carbonate (MM = 96.09 g/mol) was found to contain 7.6 x 1023 AMU of N. How many…

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Q: How many grams of Al are needed to form 7.3 grams of Al2O3

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Q: What is the molarity (moles/L) when 16.6 mL of 8.26 M NaNO3 is diluted by adding 31.8 mL of water?

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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.