please help. I am stuck :( thank you What volume of 0.25 M HNO, is necessary...
Please help. I am studying for an upcoming exam and I am having
a hard time doing these two questions.
21-90. What is the pH of the solution that results from the addition of 25.0 mL of 0.200 M KOH(aq) to 50.0 mL of 0.150 M HNO,(aq)? 21-67. A 2.500-gram sample of oxalic acid, a diprotic acid, is dissolved in 250.0 mL of water and titrated with 1.000 M NaOH(aq) to the first equivalence point. The volume of base required...
please help with all solitions for 2,3 and 4. thank uou!
HNO) Na CO,(aq) → Toud konie: 2H+ + NO3 +2Na++C052 2 Nat + 2NO3 + H2066) + CO2(g) Net lonie: 24+ (and + costaus H2010)+co 2. In Bronsted-Lowry theory, an acid-base reaction always produces another acid-base set referred to as conjugates. For each of the reactions below. predict the products, Identify the acid, base, conjugale acid and conjugate buse a. NH) 4 HNO (8) ► b. H.O(aq) + HC,H,O...
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Part A What volume (in mL) of a 0 200 M HNO, solution is required to completely react with 36.7 mL of a 0.108 M NaaCO3 solution according to the following balanced chemical equation? NagCO3(aq) + 2 HNO3(aq) +2 NaNO3(aq) + CO2(g) + H2O(1) Express your answer with the appropriate units. THẢ5 0 3 ? V = Value Units Submit Request Answer P Pearson
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4. With what volume of 5.00 MHF will 4.72 g of calcium hydroxide react comp the following reaction? 2HF + Ca(OH), CaF, +2H,0 a hydroxide react completely, according to Ca(OH)2= 20+(16+1)x] =54g 5. How many moles of sulfate ions are there in a 0.545-L solution of 0.489 M Al2(SO4)3? What volume of 2.52 M HCl is required to prepare 176.5 mL of 0.449 MHCI?
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question, I am stuck. If you can provide steps/explanation it'll be
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4) Multi-step synthesis: Starting with given the compound and using any other reagents of your choice, except Grignard reagents, provide a synthesis for the following compound. (1 pt) Please use reactions that give the desired product as the major product Show the product for each reaction step Complete the synthesis in 5 steps or less Please do not use...
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At a concentration of 1 M, the weak acid HNO, is 2% ionized, and the pH of the solution is 1.7. What happens when KNO,() is dissolved into the solution? The extent of HNO, ionization The concentration of H+ The pH If a buffer solution is 0.260 M in a weak acid (K, = 6.0 x 10 ) and 0.500 M in its conjugate base, what is the pH? A 0.194 g sample of...
I do not have all the salts listed? I am confused please
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Classify the compounds as acids, bases, or salts Acid Base Salt Ca(OH)2 HF NH,NO NaF H2C204 MgBr H2SO CSOH
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Use curved arrows to predict the product in each case. KCN Acetone NaSH Br Br KCN DMSO LDA Br H3PO4 OH Heat Consider a ring contraction
Please HELP, I am stuck on this problem and I am not able to figure out because the book is giving km/s instead of the regular km/h and the professor gives us the final answer to self check but my answer using the formula lambda=h/p is not the same as his answer...not sure what I am doing wrong. I tried to convert to m/s but that didn't work. What is the de Broglie wavelength of: a) an electron (m=9.1x10^-31kg) traveling...
Hey! Can you please help me with the following two questions I am highly confused and I don't really understand them at all. Thank you!! 16, Please help me with them, we have a test this thursday and problems that are similar are supposed to be on there. Thank you so much!!! 1.Calculate the pH of a 0.119 M aqueous solution of hydroxylamine (NH2OH, Kb = 9.1×10-9) and the equilibrium concentrations of the weak base and its conjugate acid. pH...