What volume of hydrogen sulfide is required to react with 21.7 liters of oxygen gas according to the following reaction? (All gases are at the same temperature and pressure.) hydrogen sulfide (g) + oxygen (g) → water (1) + sulfur dioxide (g) Volume = L

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

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Q: German pretzels are often poached in cold sodium hydroxide solution before baking, which helps…

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Q: A chemistry student weighs out 0.0261 g of acrylic acid (HCH,CHCO2) into a 250. mL volumetric flask…

A: At equivalent point  Number of equivalent of acid = number of equivalent of base. Valence factor of…

Q: Objective KTIOV A chemistry student weighs out 0.0434 g of sulfurous acid (H,SO,), a diprotic acid,…

A: Molarity is defined as number of moles per litre of solution.

Q: To determine the solubility of a solute in water, a solution must be prepared that is saturated.…

A: The type of solution that is used to determine the solubility of a solute in water is given below.

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.66 mL sample taken…

A: Given data,Volume of H2SO4=6.66mLVolume of water=50mLMolarity of NaOH=0.4643MVolume of NaOH=31.52mL

Q: numenCal diiswer sighmcant ngures. What is the molarity of a solution that contains 57.7 g Na CO, in…

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Q: Please do not round off intermediate calculations. Thank you.

A: Given that : The mass of lead nitrate is 26.4g. The volume of ammonium sulfate solution is 150 mL.…

Q: What volume of 0.162 M NaOH is required to neutralize 27.5 mL of 0.177 M of a hypothetical…

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Q: How many grams of a solution that is 5.2 % sucrose by mass are needed to obtain 18 g of sucrose

A: Mass by volume percentage is the mass of solute particles dissolved per unit of solvent.

Q: Using CER and your knowledge from data listed above, if the temperature of ethanol solution…

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Q: One way in which the useful metal copper is produced is by dissolving the mineral azurite, which…

A: The balanced reaction taking place is given as, => Fe (s) + CuSO4 (aq) -------> Cu (s) + FeSO4…

Q: A student sets up the following equation to solve a problem in solution stoichiometry. (The ? stands…

A: Given: equation To find: the solution with units of the equation.

Q: was titrated with 0.121 M NaOH. The initial burette reading was 1.03 mL, and the final reading was…

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Q: What is the mass of 1 mL of pure water? How could this information be used to check the accuracy of…

A: Density of a substance is defined as its mass per unit volume.

Q: The ocean is a heterogeneous fluid with different concentrations of zinc at different depths.…

A: Conceptual interpretation - As we know that ocean is the heterogeneous fluid with different…

Q: MISSED THIS? Read Section 4.2 (Page); Watch KCV 42, WE 4.2. Write a balanced chemical equation for…

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Q: The vinegar solution you can purchase at the store is about 5% by mass acetic acid. It will be…

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Q: volume of 34.2 mL of a 1.16 M KMnO4 solution is mixed with 16.7 mL of a 0.392 M KMnO4 solution.…

A: Given, Note: 1L = 1000 mL Solution I Concentration of KMnO4 solution I = 1.16 M = 1.16 mol/L Volume…

Q: Suppose 11.9g of potassium nitrate is dissolved in 300.mL of a 0.30 M aqueous solution of ammonium…

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Q: Silver nitrate solution is used in various hair dyes and permanent fabric markers. Water is added…

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Q: reaches

A: mmoles of standard Solution = ( volume • concentration )  Note : 1mM = 10^-3 M  mmoles of standard…

Q: Suppose 0.0891g of barium nitrate is dissolved in 100.mL of a 11.0mM aqueous solution of sodium…

A: Reaction of Barium nitrate and sodium chromate :   Ba(NO3)2 + Na2CrO4 = BaCrO4 + 2 NaNO3 On reaction…

Q: Suppose 0.238g  of iron(II) chloride is dissolved in  100.mL  of a  14.0mM  aqueous solution of…

A: According to the question we have, The mass of the iron(II) chloride ( FeCl2 ) = 0.238 gm The volume…

Q: Nitric acid is added to a sample of zinc. Based on the following information, what is the…

A: Initial mass of Zn = 9.50 g Final mass of Zn = 3.23 g  Mass of Zn reacted = 9.50 - 3.23  = 6.27 g

Q: What mass of KBr (in grams) should you use to make  319 mL of a 1.59 Msolution of KBr? The molar…

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Q: A student is making a solution of sugar in water. If the student uses 0.67 moles of sugar and enough…

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Q: A 50.0 mL aqueous stock solution of 0.67 M HCl is diluted to a final volume of 188.1 mL. What is the…

A: The volume of stock solution before dilution (Vi) = 50.0 mL The molarity of stock solution before…

Q: Suppose 0.739 g of sodium chloride is dissolved in 150. mL of a 29.0 m Maqueous solution of silver…

A: The mass of sodium chloride (NaCl) is 0.739 g.The volume of aqueous silver nitrate (AgNO3) is 29.0…

Q: Determine the mass of silver chromate that will dissolve in 1.0-gallon of water. (Note: 1 gal =…

A: solubility product is defined as the product of concentration of ions formed when a sparingly…

Q: What is the volume in mL needed to prepare a 0.4 M NaOH solution using 1.6 g of NaOH? The molar mass…

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Q: Question 1 If 85 mL of 0.548 M NAOH is diluted to a total volume of 152 mL, what is the molarity of…

A: • Molarity of the diluted NaOH, can be calculated by using the Molarity relationship. • This…

Q: A chemist adds 0.30 L of a 2.04M sodium thiosulfate (Na, S,0,) solution to a reaction flask.…

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Q: Calculate the number of MOLES of sugar in 705.0 mL of a 0.198 M sugar solution.

A: Given -> Volume= 705.0 ml  Molarity= 0.198 M

Q: It requires 24.15 mL of 0.03 M HCl to neutralize 38.2 mL of a NaOH solution. What is the…

A: We will write the balanced reaction and then using stoichiometric calculations we will calculate the…

Q: (record your final answer rounded to the correct significant digits and the proper units.) 1. A…

A: Given, Concentration of H3PO4 solution = ? Volume of H3PO4 solution = 37.9 mL = 0.0379 L Moles of…

Q: ata Table 1. Analysis of Alka-SelltzerⓇ Mass of acetic acid Density of acetic acid Concentration of…

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Q: . Are these results precise? Explain.

A: No, these results are not precise.

Q: Volume of 0.200M K2C2O4 Is required to react completely with 30.0 ML of 0.100 M Fe (NO3)3 Choose one…

A: Given  Molarity of K2C2O4           = 0.200 M  Molarity of Fe( NO3 )3      = 0.100 M  Volume of Fe(…

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.