How many moles of vanadium atoms, V, are needed to combine with 0.145 mol of O atoms to make vanadium pentoxide, V₂O5? 0.0580 eTextbook and Media mol V atoms

Q: How many kcal/mol are in 211.8 kJ/mol? Do not put units in your answer. Give your answer to two…

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Q: A student prepares a 1.1 mM aqueous solution of acetic acid (CH₂CO₂H). Calculate the fraction of…

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Q: Time (s) [A] (M) [A] vs. t In [A] vs. t 1/[A] vs. t 0 0.00320 10 0.00251 20 20 0.00208 40 40 0.00154…

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Q: Convert the following measurement. 3 kg 9.6 x 10 %3D mol · L mol dL

A: Unit conversion: 1000 g=1kg1 L=10 dL (decilitre) We have to calculate following: 9.6×103 gmol.L=_…

Q: It requires two sticks of butter to make a batch of 20 cookies. How much butter will it take to make…

A: Simple use of unitary method to solve this problem

Q: What mass of water (in grams) is produced by the complete combustion of 2.68 g of ethanol, C2H5OH?…

A: Burning of any hydrocarbon gives CO2 and water from the balance equation we can calculate it .

Q: At 25 °C, K = 9.1 x 1080 for the reaction 2H2(g) + O2(g) * 2H20(g) What is the value of K. for the…

A: 1. Equilibrium is state which always occurs in reversible reactions. 2. According to equilibrium…

Q: Some cooks will tell you that they salt the water used to boil pasta because adding table salt…

A: Given : Elevation in boiling point of solution required = 5 oC And volume of water = 2 L = 2000 mL…

Q: A chemist adds 40.0 mL of a 0.083 mmol/L sodium thiosulfate (Na, S,0,) solution to a reaction flask.…

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Q: You are asked to calibrate a 25.00 mL volumetric pipet. You determine that the temperature of your…

A: Here we have to calibrate the pipet using mass and density of water.Given,mass of water transferred…

Q: An empty beaker is placed on a balance, and its mass is recorded at 42.513 g. The beaker is removed…

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Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Welcome to bartleby ! We have to calculate excess weight of HBr

Q: Food safety guidelines recommend that a beef rib roast (bone-in) should cook for 23.0 minutes per…

A: beef rib roast (bone-in) should cook for 23.0 minutes per pound based on a 325 °F oven setting…

Q: A student dissolved 230.8 grams of cesium chloride in 100.0 grams of 90 °C water.  The student then…

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Q: In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water.…

A: Calcium carbonate reacts with hydrochloric acid to form the carbon dioxide gas.

Q: Convert 3.97×1010 J to units of kcal.

A: By using relation between J and Kcal we can solve this problem. 3.97×1010J = 9.5 × 106 Kcal

Q: themist prepares a solution of potassium chloride (KCl) by measuring out 43. mg of KCl into a 50. mL…

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Q: Macmillan Learning Red gold is a gold-copper alloy used to make jewelry. A piece of jewelry made of…

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Q: The noble gas argon was discovered by Sir Walter Ramsay and John William Strutt in England in 1895.…

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Q: While excavating ancient remains, an archaeologist discovers a box of minted coins. The nineteen…

A: Given: Mass of coins = 1.23 lbs. Melting point of coins = 1981 oF And the change in volume of the…

Q: The density of a gas sample is 1.29 g/L. How many grams of gas are there in 255 L

A: Given: Density of gas = 1.29 g/L Volume of gas = 255 L

Q: Once you have completed your chemistry experiments, either by producing products or leaving reagents…

A: The answer for this problem is provided below in great details within the attached figure.

Q: A chemistry student must write down in her lab notebook the concentration of a solution of sodium…

A: Answer

Q: A student prepares a 0.70 mM aqueous solution of butanoic acid (C,H,CO2H). Calculate the fraction of…

A: This question is from chapter Ionic equilibrium where we are dealing with a weak acid like butanoic…

Q: A student conducts an experiment using an unknown hydrate and obtains the following data Crucible…

A: Given - Crucible =  24.31g Crucible+ hydrate = 29.31g Crucible+ anhydrate =  28.26g Mg % = 29.44% S…

Q: Can you actually write this out? It makes it much more difficult to read when it gets written out…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: A geochemist measures the concentration of salt dissolved in Lake Parsons and finds a concentration…

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Q: A chemist prepares a solution of silver perchlorate (AgClO) by measuring out 440. g of silver…

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Q: Constants | Periodic Table Coal is a fossil fuel made primarily of carbon, but it also contains…

A: Dear Student

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.