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# molar mass of na2s2o3

16 Determination of weight of Na2S2O3.5H2O to prepare its q M Weight of Na2S2O3.5H2O=Molarity x Molar mass x Volume/1000 Weight of Na2S2O3.5H2O= q x Molar mass x Volume 1000 Weight of Na2S2O3.5H2O= b g/250.0ml Standardization of prepared Na 2S2O3.5H2O solution 1000ml standard K2Cr2O7 contains p mol of K2Cr2O7 1ml standard K2Cr2O7 contains p/1000 mol of K2Cr2O7 10.0 or â¦ Mole Ratios. It has a role as an antidote to cyanide poisoning, a nephroprotective agent and an antifungal drug. $\endgroup$ â Poutnik May 14 '19 at 18:01 Question: Sodium Thiosulfate (Na2S2O3, Molar Mass - 158.2 G/mol) Is Used In The Development Of Photographic Film. 4 g. On the heating to a temperature, at which all the N 2 O 4 may be dissociated into N O 2 , the mean molar mass tends to a lower value of 3 9. 0.455 moles Assuming that the reaction you meant was: Na_2S_2O_3 + AgBr \rightarrow Na_3(Ag(S_2O_3)_2) + NaBr If I'm wrong tell me in the comments. ... mass of the precipitate that forms can be measured. Na2S2O3 +H2O+Cl2-----)NaSo4 +2HCl Molar mass=m Equivalent mass of Na2S2O3 = ? tadvisohil886 tadvisohil886 Mass of Na = 23 u mass of S = 32 u mass of oxygen = 16 u Thus, Na2S2O3 = 23(2) + 32(2) + 16(3) = 46 + 64 + 48 = 110 + 48 = 158 u. there are 8 moles of O per mol of compound moles of O in 124 g = 0.5 *8 = 4.0 mol of O the compound is a salt and does not exist as a molecule but 6.02 * 10^ 23 formula units has a mass of 248.1841 g Formula:Na2S2O3 Enter a chemical formula to calculate molar mass,The molar mass calculator can be used in Chemical industry and medicine industry. Elemental composition of Na2S2O3*5H2O: . 3. 71 g B. Step One: Write balanced equation The reaction above is not balanced. Predict the mass of Na2S2O3that could be produced from 38.2 g of Na2S and unlimited quantities of the other reactants, based on the following unbalanced equation: Na2CO3 + Na2S + SO2--> Na2S2O3 + CO2 a. 6 years ago. It has a white, crystalline appearance as a solid and is odourless. The molar mass of a substance, also often called molecular mass or molecular weight (although the definitions are not strictly identical, but it is only sensitive in very defined areas), is the weight of a defined amount of molecules of the substance (a mole) and is expressed in g/mol. . You React 40.21 ML Of 0.246 Miodine Solution With A 3.232 G Sample. Sodium Thiosulfate Na2S2O3 Molar Mass, Molecular Weight. Standardization of the Sodium Thiosulfate Solution Make up a standard solution of potassium iodate by accurately âweighing by differenceâ about 0.1 g of KIO3 and placing it in your 100 mL volumetric flask. Formula in Hill system is H10Na2O8S2. In its anhydrous form, sodium thiosulfate has a molar mass of 158.11 grams per mole. 1) Calculate the molar mass of sodium thiosulfate 1 mol Na2S2O3 weighs X grams 2) If you dissolve X grams in 1000 mL you will have a 1 M solution thus for a 0.25 M solution you need Y grams Calculate Y 3) You don't need to prepare 1000 mL but only 500mL thus for preparing 500 mL you need Z grams Calculate Z. B. ... Molar mass = 248.1864 g/mol . But if the iodine is just an intermediate product to be titrated by Na2S2O3, the equivalent mass is M/6. Asked by Wiki User. Stoichiometry problems can be characterized by two things: (1) the information given in the problem, and (2) the information that is to be solved for, referred to as the unknown.The given and the unknown may both be reactants, both be products, or one may be a reactant while the other is a product. Question: Mass Of Na2S2O3 Used = 1.36 Grams A) Find The Moles Of Na2S2O3 Used To Titrate The Bleach Solution B) ... we know that moles = mass / moalar mass molar mass of Na2S203 = 158 g /mol so moles of Na2S203 = 1.36 view the full answer. Mass required = 0.0200*0.5*248.1854 = 2.48g required Since KIO3 is quite neutral, but Na2S2O3 is basic (pH > 7). To make sure the reaction would take place, H2SO4 is added. What is the molar mass for the following compound, rounded to the nearest gram? Molar mass of Na2S2O3*5H2O is 248.1841 g/ mol. 10 Na2S2O3 + 2 KIO3 + 12 H(+) --> 5 Na2S4O6 + I2 + 6H2O + 10 Na(+) + 2 K(+) The reaction will only take place in acidic environment. Preparation of Na2S2O3 solution. 3 0? Given the reaction: Na2S2O3 + AgBr â-> NaBr + Na3[Ag(S2O3)2] A. Add your answer and earn points. â¢ Na2CO3 + S + SO2 = CO2 + Na2S2O3 â¢ 2 HCl + Na2S2O3 = H2O + 2 NaCl + S + SO2 The molar mass of (NH 4) 2 CO 3 is 96.08582 g/mol. Molar mass of Na2S2O3*5H2O is 248.1841 g/mol. Find the mass of the solute youâre adding into your solution using a lab scale if you need to. Now, as far as the reaction goes, it does not matter which one is added first. What is the mass of NaBr that will be produced from 42.7 g of AgBr? The density of sodium thiosulfate corresponds to 1.667 grams per cubic centimetres. Preparation of solutions calculator is a useful tool which allows you to calculate how many solid chemicals or stock solutions you will need to prepare the desired solution. Sodium thiosulfate is used in gold mining, water treatment, analytical chemistry, the development of silver-based photographic film and prints, and medicine.The medical uses of sodium thiosulfate include treatment of cyanide poisoning and pityriasis. 1 2 3. Molar mass Na2S2O3.5H2O = 248.1854 g/mol. If the strength of Na2S2O3 is M/10, then the volume of Na2S2O3 needed to react completely is? 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