A solution of HNO, is standardized by reaction with pure sodium carbonate. 2H* + Na,CO, - 2 Na* + H,O+ CO, A volume of 29.05 + 0.06 mL of HNO, solution was required for complete reaction with 0.9594 ± 0.0007 g of Na,CO,. (FM 105.988 + 0.001 g/mol). Find the molarity of the HNO, solution and its absolute uncertainty. Note: Significant figures are graded for this problem. To avoid rounding errors, do not round your answers until the very end of your calculations.

A solution of HNO, is standardized by reaction with pure sodium carbonate. 2H* + Na,CO, - 2 Na* + H,O+ CO, A volume of 29.05 + 0.06 mL of HNO, solution was required for complete reaction with 0.9594 ± 0.0007 g of Na,CO,. (FM 105.988 + 0.001 g/mol). Find the molarity of the HNO, solution and its absolute uncertainty. Note: Significant figures are graded for this problem. To avoid rounding errors, do not round your answers until the very end of your calculations.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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5. Tetraethyl lead, Pb(C:Hs)4, in a 25.00 mL sample of jet fuel was shaken with 15.00 mL of 0.02095 M 1:. The reaction is: Pb(C:Hs)4 + l2 = Pb(C:Hs)al + C:Hal After the reaction was complete, the unused Iz was titrated with 6.09 mL of 0.03465 M Na:S:O3. Calculate the %w/v, in kg/L, of Pb(C:H;)4 (MM=323.4) contained in the sample.
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A 35.0 mL volume of ammonia (NH3) household cleaner needs 53.75 mL of 0.300 M HNO3 to completely neutralize the base. The balanced equation is: HNO3 + NH3 --> NH4NO3 A) Find the number of moles of HNO3 involved in this reaction. (2 hints: start dimensional analysis with the volume of HNO3, & convert mL to L.) B) Find the molarity (M) of the NH3 (This is different than the number of moles. Your calculation will be different from part A.) C) Find the mass/mass % of the NH3. You will need the molar mass of NH3 (17.04 g/mol) & the density of NH3 (0.985 g/mL).
||| y google - Yahoo Search Results mL Q OCHEMICAL REACTIONS Determining the volume of base needed to titrate a given mass... Explanation 0 Check www-awu.aleks.com y pearson login - Yahoo Search Results Yahoo Search Results X A chemistry student weighs out 0.0878 g of phosphoric acid (H₂PO4), a triprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1500M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Round your answer to 3 significant digits. C MacBook Air A ALEKS-Latoya Johnson - Le 1/3 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Acc
0.2265 g pure sample NaCl was dissolved in water, the added to it 60 ml of AGNO3 solution. The remaining (excess) AGNO, after its precipitate filtration was titrated with KSCN solution, so 5 ml of KSCN was needed to do so. If you know that each Iml of KSCN solution = 1.2ml of AGNO; solution. Calculate the Normality of AGNO, and KSCN. (M.Wt for NaCl is 58.5 g / mol.)
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A solution of citric acid (H.CeHsO,) with a known concentration of 0.200 M H.CcHsO, is titrated with a 0,750 | M NAOH solution. How many mL of NaOH are required to reach the third equivalence point with a starting volume of 25.0 mL H:CCH:O, according to the following balanced chemical equation: H.CcHsO, + 3 3 H:0 NaOH – Na:CeHsO, + STARTING AMOUNT ADD FACTOR ANSWER RESET 1 3 1000 6.67 15.0 20.0 0,020 25.0 11.25 2.22 0.001 0.750 2.00 x 10 0.200 + g H.CcHsO, M H.CcHsO, mL NaOH mol NaOH L NaOH mol H.CHSO, LH.CeHsO, 11:33 PM 68°F Mostly cloudy 10/5/2021 P Type here to search prt sc delete tg tvo insert 144 トト」米 esc home @ 23 backspace 3. 4 6. 7 8 Y P Q tab
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is silve 0.10 ANO E) 4.26 x 10-17 M 16) A solution containing AgNO3 is mixed with a solution of NaCl to form a solution that is 0.10 M in AgNO3 and 0.075 M in NaCl. What will happen once these solutions are mixed? Ksp (AgCI) = 1.77 × 10-10 A) Silver chloride will precipitate out of solution, leaving an unsaturated solution of AgCl. B) Nothing will happen since the molar solubility of AgCl is higher than the solution concentrations. 0.075 Nac! Silver chloride will precipitate out of solution, leaving a saturated AgCl solution. D) Nothing will happen since NaCl and AgNO3 are both soluble compounds. E) There is not enough information to say anything about this solution. Ksp Ag Cl 1.77 × 10-10 16)
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A solid sample containing some Fe2+ion had a total mass of .9791 g. It required 18.2 ml of 0.02304 M KMnO4 to titrate the Fe2+ in the dissolved sample to a pink endpoint. How many moles of Fe2+ were in the the sample? How many grams of irion were present in the sample and what was the mass percent iron in the sample?