What mass of KNO3 [MW=101] is needed to prepare 250.0mL of 0.450 M KNO3 in water?

Q: What is the molar concentration of HNO3 (63.0 g/mol) in a solution that has a specific gravity of…

A: Given that, Molar mass of HNO3 = ( 63.0 g/mol) Specific gravity = 1.15  And 65% (%w/w) of HNO3…

Q: How many litres of chlorine gas at 640 mmHg and 25 degrees C can be produced by the reaction of 2.0…

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Q: A 220 ml solution of CMC agar contains 84.99 µg NaNO3 and 174.18 µg K2HPO4, respectively. Determine…

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Q: What is the molarity of a solution in which 150g of CaO are dissolved in 1900mL of solution? (Use…

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Q: A 15.0% by weight solution was prepared using 90.0g of KCl and the resulting density of the solution…

A: Given % by weight = 15 % Mass of solute = 90.0 g Density of solution = 1.101 g/ml

Q: The partial molar volumes of two liquids A (M = 241.1 g mol1) and B (M = 198.2 g mol1) in a mixture…

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Q: Q: Solution of 396g of Zn(OH)2 has normality [ 4.8 eqv.\L] added to 1330ml water. What is the Vol.%?…

A: given:mass of Zn(OH)2=396gnormality =4.8 eqN/Lvolume of water = 1330 mlTo…

Q: To prepare 100ml of 0.2M from the stock solution (10M) we need to dilute 4ml of the stock solution…

A: To prepare a solution of given concentration from the stock solution, we need to use the molarity…

Q: In an experiment, 0.500 grams of sodium bicarbonate were added to an evaporating dish and an excess…

A: Number of moles of a chemical compound is the term used to express the amount of the compound in a…

Q: many liters of chlorine gas at 1 atm and 21°C can be produced by the reaction of 5.91 moles of HCl…

A: The amount of product formed is guided by the limiting reagent.The reaction proceeds according to…

Q: Given 200cm3 of pure water at 40C, what volume of a solution of hydrochloric acid whose density is…

A: Given that : Volume of pure water = 200 cm3 Density = 1.175g/cm3 = 1.175g/mL HCl by weight = 344.4%…

Q: A 35.5 mL sample of an 4.3 % (m/v) KBr solution is diluted with water so that the final volume is…

A: Mass by volume percentage (%m/v) can be expressed as the ratio of the mass of solute by the volume…

Q: 115 milliliters are required to prepare 900 ml of 2.00 M H2SO4 (98.1g/mol) from the commercial…

A: Given that, 115 milliliters are required to prepare 900 ml of 2.00 M H2SO4 (98.1g/mol) from the…

Q: Describe the preparation of a 500. ml of 2.50 M solution cupric sulfate pentahydrate, starting from…

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Q: 1. Copper metal and aqueous iron (III) chloride were made to react to reduce iron to Fe** while…

A: Cu metal  +  Iron III chloride  →  Fe2+  +  Cu2+…

Q: A solution of ribose (C5H1005, 150.13 g/mol) has a concentration of 6.00%(w/v). What is the molarity…

A: Given, weight/volume percentage of ribose solution = 6.00 %  We know that, weight by volume…

Q: In the preparation of 60 mL Magnesium citrate in the laboratory, you are required to:calculate for…

A: Given,  Mass of (MgCO3)4 .Mg(OH)2 .5H2O = 2.57 g  Molar mass of (MgCO3)4 .Mg(OH)2 .5H2O = 485.65…

Q: d 630 mL of 2.90% (w/v) aqueous CuSO4 from a 0.385 M CuSO4 solution. Take mL of the 0.385 M CuSO4…

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Q: NaHCO3 (s) + HCl (aq) ---> NaCl (s) + CO2 (g) + H2O (l) Is the reaction balanced? What was in the…

A: If all the atoms of each type of element are equal then the reaction is said to be balanced. In the…

Q: How much volume of ethanol to be used in each of the following situations: (Ethanol, 99.0 % v/v…

A: Percentage purity of ethanol = 99.0 % Density of ethanol = 0.789 g/mL…

Q: Describe the preparation of a 500. ml of 2.50 M solution cupric sulfate pentahydrate, starting from…

A: 1) given:  Volume of solution, V = 500 ml = 0.5L  Molarity of solution , M = 2.50 M  Molecular…

Q: Acrylonitrile and water are produced from propene, ammonia, and oxygen in a 2 L vessel by the…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: Which two statements are correct? a) The normality of the K2Cr2O7 solution is 0.41 N b) The…

A: When dichromate ion in acidic medium, treated with ferrous ion, then Ferric ion and chromium (III)…

Q: In an experiment, 0.500 grams of sodium bicarbonate were added to an evaporating dish and an excess…

A: Given reaction- NaHCO3 (s) +  HCl  (aq)   --->   NaCl (s) +  CO2 (g) +  H2O (l)

Q: _t volume of the 1.76 M H2O2

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Q: Prepared 1 M of NaCl solution in volume 100 ml, Mwt is 58.5? O 0.585 gm. O 5.85 gm. O 58.5 gm.

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: By pipot the stock solution of potassium permanganate (KM 1 O 4 ) from Question was transferred to…

A: The concentration of the resulting solution after dilution of stock solution can be calculated using…

Q: What willl be the Molar concertration of the 306.29  HCl solution prepared from 3 mL of concentrated…

A: To solve this problem we will first calculate mass of HCl . Then number of mole  HCl will be…

Q: In an experiment, 0.500 grams of sodium bicarbonate were added to an evaporating dish and an excess…

A: Given: The reaction is as follows, NaHCO3(s) + HCl(aq) → NaCl(s)+CO2(g)+H2O(l) Mass of sodium…

Q: A Hospital pharmacist wants to use three lots ZnO ointment containing repectively 50%, 20% and 5%…

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Q: stoic A Exactly 600.0 mL of a solution that contained 447.7 ppm of Ba (NO3), were mixed with 250.0…

A: The mass and number of moles of a compound can be calculated from a balanced chemical reaction. A…

Q: 00g of Al2S3 dissolved in H2O to make 15.0 L of solution. What is its normality? (MW: Al = 27g / mol…

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Q: To prepare 100ml of 0.2M from the stock solution (10M) we need to dilute 4ml of the stock solution…

A: Provided final volume(V2) of solution=100 ml Provided final concentration(M2) =0.2M Initial…

Q: 1.Determine the mass of sodium chloride required to prepare 400 ml of a Mueller-Hinton broth…

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Q: 2/50lved its volume (4L)His faus(oin) Nafl from sollunchloride i was related dding one liter of…

A: Given that, Initial concentration of NaCl solution = 0.02 M Volume of solution initially = 4 L One…

Q: What volume, in milliliters, of sodium acetate 1:150 (w/v) solution do you need to obtain 1.5 mEq…

A: The volume of sodium acetate solution (1:150 ; w/v) is 18.45 mL.

Q: I  wish to prepare 500.0 mL of a 800.0 ppm w/v fluoride (MW = 18.9984 g/mol) solution. a.)How many…

A: a) First calculate the mass fluoride in 500mL solution then it is used to determine the moles…

Q: How many mL of H2O2 are needed to make 500 mL of 4.50% v/v solution by volume of H2O2?

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Q: The last calculation we need to do is find the %acetic acid (a.k.a the "acidity"). We can average…

A: The % m/v is a unit of concentration. Mass/volume percent of a solution is the ratio of the mass of…

Q: Prepared 1 M of NaCl solution in volume ?100 ml, Mwt is 58.5 0.585 gm. O 5.85 gm. O 58.5 gm. O

A: Given Data  :  1. Concentration of NaCL = 1 M  2. Volume = 100 mL                     = 100 ÷1000 =…

Q: 20. In a railroad yard, a 2.5 X 104-kg boxcar moving at 8.5 m/s is stopped by a spring-loaded bumper…

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Q: mixture of NaOH, NaCL and MgCl2 contains 34.6% by mass chloride and 20.0% by mass hydroxide. What…

A: From the hydroxide mass we can calculate the moles of Hydroxide and hence the moles of NaOH. And…

Q: An aqueous solution is prepared by dissolving 0.415g of KMnO4 in 250.0mL of water. This solution is…

A: First SolutionAn aqueous solution is prepared by dissolving 0.415 g of KMnO4 in 250 mL. The molarity…

Q: 115 milliliters are required to prepare 900 mL of 2.00 M H2SO4 (98.1g/mol) from the commercial…

A: Given: Concentration of commercial H2SO4 (w/w) = 96.5 %  Volume = 115mL New solution of 900mL of 2M…

Q: Prepare 1500mL of 0.5N H2SO4 solution with specific gravity of 1.84g/mL and assay of 97%

A: Given Volume of solution = 1500ml  Normality = 0.5 N Specific gravity = 1.84 g/ ml % solution = 97

Q: 1. A crude oil contains 4% asphaltene by weight. The molecular weight of asphaltene and oil are 1000…

A: Given, Crude oil has 4% asphaltene by weight.

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".