Equivalent weight of h2po4
WebH 2SO 4 is a dibasic acid i.e. basicity is 2 In other way 1 mole of H 2SO 4 will give 2 moles of H + . In the given it reacts with Na 2Cr 2O 7. Equivalent mass of H 2SO 4 is 2Molecular mass= 298=49 Was this answer helpful? 0 0 Similar questions Calculate the equivalent weight of the following. Fe 2S 3→2Fe 2++SO 2. Medium View solution > WebEquivalent mass = Valence factorMolar mass Valency factor of acid is the number of displaced H + ions in the reaction. The given reaction is as: NaOH+H 3PO 4→NaH 2PO 4+H 2O As one H + is displaced, its valency factor is 1. ∴ Equivalent mass of H 3PO 4 = 198 = 98. (Mass of H 3PO 4 = 98) Hence, the correct option is D. Was this answer …
Equivalent weight of h2po4
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WebThe equivalent mass which is also known as gram equivalent mass is the mass which will combine or displaces a fixed quantity of another substance. N-factor of acid is the … WebAug 16, 2024 · A) Equivalent weight of H2PO3− is 40.5. B) Eq. wt. of H2PO4− may be equal to molar mass or less than molar mass depend on reaction. C) KMnO4 has …
WebApr 7, 2024 · As we know, Equivalent weight = molecular weight / X. The equivalent weight of hydrochloric acid = 36.45 / 1 = 36.45. For Bases. The reasoning for the base is … Web3 Therefore the best combination of weak acid and conjugate base for the buffer would be: Weak acid = A = H 2 PO 4− (dihydrogen phosphate) 2Conjugate base = B = HPO 4 − (monohydrogen phosphate) STEP 2: Now that the identity of the phosphate ions in the buffer has been established, the next task in hand is to determine the molar …
WebMolecular weight of sulfuric acid (H 2 SO 4) = 98.07 g/mol . Theoretical Equivalent weight of sulfuric acid (H 2 SO 4) = 98.07g/equivalent of H + Reasoning: 98.07 g/mol H 2 SO 4 … WebSolved H2PO4 + OH → HPO42- + H2O 11.5 ml 0.4932 M NaOH Chegg.com. Science. Chemistry. Chemistry questions and answers. H2PO4 + OH → HPO42- + H2O 11.5 ml …
When choosing primary standards in analytical chemistry, compounds with higher equivalent weights are generally more desirable because weighing errors are reduced. An example is the volumetric standardisation of a solution of sodium hydroxide which has been prepared to approximately 0.1 mol dm . It is necessary to calculate the mass of a solid acid which will react with about 20 cm of this solution (for a titration using a 25 cm burette): suitable solid acids include oxalic …
WebSTOICHIOMETRY-2 - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Comprehension I 100 gm FeC2O4 is strongly & completely oxidised by acidified KMnO4, the CO2 gas liberated passed through NaOH for complete neutralisation. Q1. The equivalent weight of FeC2O4 is (A) 144/2 (B) 144/3 (C) 144/1 (D) 144/4 Q2. freudenthal hhWebAnswer (1 of 2): Equivalent weight(n factor) depends on reaction and is different for different reactions like if h2po3 reacts with 1 mole of NaOH then its equivalent weight will be molecular mass/1 (n factor=1) but if it reacts with 2 moles of NaOH then its equivalent weight will be molecular ma... father marty lukas osfsWebPhosphate, Monohydrogen phosphate. Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references. … freudenthalwegWebThe number of moles (mol) is defined as the ratio of the mass of the compound to the molecular weight of the compound. One mole is equal to {eq}6.022 \times 10^{23} {/eq} atoms. ... a fraction of 100. It is often denoted by the symbol "%" or simply as "percent" or "pct." For example, 35% is equivalent to the decimal 0.35, or the fraction 35 /100. father martin youtubeWebSep 7, 2024 · $\ce{P2O5}$ content is useful as it is the phosphorous content that a scientist often cares about when using phosphoric acids. This might seem silly given that as you pointed out anything from $0-70\% \ \ce{P2O5}$ could just be expressed as a percentage of $\ce{H3PO4}$ but there are times when a higher $\ce{P2O5}$ concentration is desired. … freudenthal home-based healthcareWebMar 19, 2024 · Hence equivalent weight of H 3 P O 4 = Molar mass of H 3 P O 4 / n factor = 98 2 = 49 gram per equivalent. Molar mass of N a 2 H P O 4 = 2 × atomic mass of sodium + atomic mass of hydrogen + atomic mass of phosphorus + 4 × atomic mass of oxygen = 2 × 23 + 1 + 31 + 4 × 16 = 142 gram per mole. freudenthal hessenWeb1 Answer. Sorted by: 0. The question can be understood as: Which one of the following oxidants has a greater n-factor as there's only 1 mole each of permanganate ion and dichromate ion. The n-factor of permanganate ion is (7-2)=5. while. The n-factor of dichromate ion is (6*2-3*2)=6. So, the answer is the 2nd reaction. Share. father marty hunckler