19- by heating 2.86 g of hydrated sample of washing soda Na,CO3.XH20, till Complete drying the remaining mass was found to be 1.06 g. 1- Calculate the mass percentage of water in the sample? give your answer one decimal place. % ? 2- Calculate X ?

Q: The phosphorus in a 0.2222-g sample was precipitated as the slightly soluble (NH4)3PO4 • 12Mo O3.…

A: P2O5 = 2 (NH4)3PO4 • 12Mo O3 = 24 PbMoO4   Moles of PbMoO4 are, Moles = mass ÷ molar mass Moles =…

Q: What is the percent by mass (%m/m) concentration of sodium bromide (NaBr) in a solution prepared by…

A: % m/m is defined as  % m/m = mass of solute X 100 / mass of solution  mass of solution = mass of H2O…

Q: Calculate the percent by mass of potassium nitrate in a solution made from 67.0g KNO3 and 447 mL of…

A: Here we use formula mass percentage , that is ( Mass of solute/ Mass of solution)* 100  Mass of…

Q: In the standardization of NaOH solution, 0.521l g potassium hydrogen phthalate (204.22 g/mol) is…

A:

Q: The hydrated salt, MY3·xH2O, was heated strongly in a crucible to remove all the water molecules of…

A: Given: Mass of empty crucible and cover = 28.86 g Mass of crucible, cover, and hydrated salt = 32.86…

Q: What is the mass percentage

A:

Q: What mass of concentrated sulfuric  ( a 95% solution of H2SO4 by mas) is needed to prepare 500. g of…

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

Q: Calculate the molarity of the following solution: 0.800 g NaOH (s) dissolved in distilled water, to…

A: Molarity is the number of moles of solute dissolve in one litre of solution. So,

Q: B) Calculate the equivalent weights of the following substances : 1) НCІ 2) H2SO, 3) Na,CO3

A: Equivalent weight of an acid:  Equivalent weight of an acid = Molar mass of the acidNumber of…

Q: Calculating the percent by mass concentration of a solution. 1. What is the percent by mass (m/m),…

A: Percentage by mass concentration is the mass of Solute present in fixed mass of Solution, it can be…

Q: What mass of Fe(NO3)3 do you need to prepare 150.00 mL of 0.550 M solution? Make sure all of your…

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

Q: Potassium fluoride is used for frosting glass. Calculate the molarity of a solution prepared by…

A: Given data:

Q: WEIGHT/MOLE CALCULATIONS . Calculate the prama of substance required to prepare the following…

A: Solution [9.] (a.) 250 ml of 5 % (w/v) NaNO3 = 250 ml × 5 g / 100 ml NaNO3 = 12.5 g NaNO3 (b.) 500…

Q: The hydrated salt, MY3.XH2O, was heated strongly in a crucible to remove all the water molecules of…

A: From the given information , we have,         Mass of empty cruicible and cover, m1 = 28.86 g…

Q: 011: calculate mass needed to prepare 5.0L of 0.10N Na,CO,(105.99g/mol) from standard solid.

A:

Q: What is the mass percentage of O in CO2? Provide an answer to two decimal places.

A: Given,  The mass percentage of O in CO2 is:

Q: The zinc in a 1.199 g sample of a foot powder was precipitated as ZNNH,PO4. Strong heating of the…

A: Given :  Mass of foot powder = 1.199 g  Mass of Zn2P2O7 produced = 0.4089 g

Q: how would i determine the concentration of carbonate anion (CO32-) in g per L of a solution if there…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: Explain how you determine the mass of CaCl2 (Ksp = 3.7 x 108) that is w licsolve in 35 Lof 0 100M…

A:

Q: Pure acetic acid (HC H3O2) is a liquid and is known as glacial acetic acid. Calculate the molarity…

A: Welcome to bartleby !

Q: Molarity of the solution resulting from dissolving 46.0 ver nitrate in enough water to give a final…

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

Q: Q2 :- Calculate the percentage of p in the sample of a 0.703 g weight, produced 0.223 g of Mg.P:O7…

A:

Q: a) What mass of strontium nitrate (Sr(NO3)2) would be required to prepare 2.000 L of a 0.0180 M…

A:

Q: What is the mass of precipitate produced by the reaction of 0.10 mol/L sodium hydroxide solution…

A: Reaction between CoCl2.6H2O and NaOH CoCl2.6H2O + 2NaOH ----------> Co(OH)2↓+ 2NaCl + 6H2O 1 mole…

Q: Calculate the composition of the following solution in mass/mass %: 40.0 g KCl per 4.00 x 10 ml…

A: Density of solution = 1.14 g mL-1  Volume = 4.00 x 102 mL  Mass of KCl = 40.0 g

Q: 20. Calculate the percent composition of Na in borax, Na2B2O7, used in commercial laundry processes.…

A: Given that -  Borax, Na2B2O7, used in commercial laundry processes    The atomic masses of different…

Q: Calculating the percent by mass concentration of a solution. 1. What is the percent by mass (m/m),…

A: given, mass of solute = 7.6 g mass of solvent = 83.4 g  % mass = ?

Q: 2) A sample of 0.892 g of potassium chloride (KCI) is dissolved in 54.6 g of water. What is the…

A: The formula for finding the mass percent is given by: Mass % = mass of solutemass of solute + mass…

Q: Q2- A) Calculate the number of moles in 200 grams of sodium tungstate (Na,WO) ? B) Calculate the…

A: A Given that: mass of Na2WO4 = 200g Molar mass of Na2WO4 = 293.82 g/mol Find the number of moles,…

Q: What mass of concentrated sulfuric  ( a 95% solution of H2SO4 by mas) is needed to prepare 500. g of…

A:

Q: Enter your answer in the provided box. Calculate the composition of the following solution in…

A: The mass% is equal to the ratio of the mass of substance to the mass of solution. The formula…

Q: 9. What is the % (w/w) (mass percent) and molarity of a solution that is created from 20.72…

A:

Q: What is the mass percentage of C in CH₃CH₂OH? Provide an answer to two decimal places.

A:

Q: In the standardization of NaOH solution, 0.8211 g potassium hydrogen phthalate (204.22 g/mol) is…

A:

Q: Given the following mixture of two compounds 30.00 g of X (MW =83.00 g/mol)(density 1.108 g/mL) and…

A: Given : mass of X = 30.00 g volume of Y = 720.00 mL density of X = 1.108 g/mL and molar mass of X =…

Q: 4. From the information below, determine the mass of NH3 in 500. grams of concentrated ammonia? DATA…

A: Given: Mass of concentrated ammonia= 500 g ℅ mass of solute = 28 ℅ Density of ammonia = 0.90 g/mL

Q: Given the following mixture of two compounds 65.00 g of liquid X (MW =79.00 g/mol)(density 1.011…

A: Molarity - ratio of number of moles of solute to the volume of solution in litres. Formula is,

Q: F25gof a 23% by mass magnesium chloride (MW= 95.21 g/mole) solution is reacted with 125.0 mL da125M…

A: Here the problem is solved by mole ratio and the concept of limiting reagent. First it is determined…

Q: The Le Blanc Process for the manufacture of soda ash encompasses the four steps: NaCl + H2SO4 =…

A: The Le Blanc Process for the manufacture of soda ash encompasses the four steps. The balanced…

Q: 3. What is the mass percent of each component in the mixture formed by adding 12 g of calcium…

A:

Q: A 12.0 wt% solution of CaCl2 (110.98 g/mol) has a density of 1.107 g/mL. What is the mass, in…

A: Since you have posted mulitiple question in a session, we are entitiled to answer only first…

Q: To prepare 50 mL solutions of 0.01 M KMnO4 in water (calculation to prepare chemicals in…

A:

Q: 1. Get the percentage composition of C&H9NO2.

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: Q2-A) Calculate the number of moles in 200 grams of sodium tungstate (Na,WO4) ? B) Calculate the…

A: In this question  A) Has asked number of moles which can be calculated by dividing mass of sodium…

Q: What volume (in L) of 1.6 M Na₃PO₄ would be required to obtain 0.56 moles of Na⁺ ions?

A: Molarity is defined as total number of moles of solute present in 1000 ml of solution Molarity =…

Q: ML b. Describe how you would prepare 1 L of a 50 mM solution of acetic acid. The gram formula weight…

A: There are different ways in which we can express  the concentration of the species