H.W:- 1-Show by calculations how could you prepare the following solutions: a) 750 mL of 0.172 F K;Cr,O, from the solid salt. b) 50 litres of a solution that is 0.1 F in Na,SO, from solid Na,SO4. c) 2 litres of a solution that is 0.015 M in Na" from solid NaCl.
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- Compute for the molarity of nitrates, NO3-, in a mixture prepared by mixing 39 ml of 0.075 M potassium nitrate, KNO3 (MW = 101.10 g/mol), with 61 ml of 0.050 M sodium nitrate, NaNO3 (MW = 85.0 g/mol)?Calculate the weight of pure sodium carbonate that is necessary to prepare 2.806 L of 0.223 N Na2CO3 (105.99 g/mol) from the primary-standard solid. Assume the solution is to be used for titrations in which the reaction is: CO32- + 2H+ ----> H2O + CO2 Express you answers in 3 decimal places-NEUTRALIZATION REACTIONS Can you help me with this one? The given problem is in the image that I've attached 1. Based on the given problem, What is the molecular weight of potassium biphthalate (C8H5KO4)? 2.Based from the given problem, what is the mEq of potassium biphthalate? 3.Based from the given problem, what is the Normality of the sodium hydroxide solution? Would you please provide a separate solution to each question, thankyou! Here are the instructions on how will you write the answers: 1. All answers to be entered via short answer are in the NUMERICAL FORMAT and presented up to the 3rd decimal place. ADD TRAILING ZEROS if necessary, to complete your answer. NO NEED TO INCLUDE THE UNIT for now.For uniformity of answers, please be guided by the following examples:- If your answer is 5.627594, enter 5.628- If your answer is 3.129934, enter 3.130- If your answer is 8.38, enter 8.380- If your answer is 1.2, enter 1.200- If your answer is 25, enter 25.000- If your answer is…
- was made up by dissolving 155 mg of KHP to a final volume of 10.00 mL. Titration of 1.00 mL of this KHP solution with KOH solution required 0.78 mL to reach the end point. What is the molarity of the KOH solution?Choi is fond of carbonated beverages so he crafted his own soda formulation called “Sodalicious.” Ulan, who is a fellow enthusiast, also made her own formulation which she called “Soda Pop!” to challenge his friend Choi. To know which formulation is better, they sought to determine the carbonic acid content of their soda formulations using titration. In the first part of their experiment, a 0.5 Mlabeled NaOH solution was standardized against 0.350 grams of KHP (MW = 204.22 g/mol) primary standard that is 99.6% pure. The titration required 3.16 mL of the NaOH solution to reach the phenolphthalein endpoint. In the second part of their experiment, Choi and Ulan independently prepared their samples by taking 25.0-mL of their soda sample and diluting it to 30.0 mL. Using the same titrant and indicator, Choi’s “Sodalicious” required 1.39 mL of the standardized titrant to reach the endpoint, while Ulan’s “Soda Pop!” required 0.926 mL of the same titrant to reach the endpoint. A. What is the…Choi is fond of carbonated beverages so he crafted his own soda formulation called “Sodalicious.” Ulan, who is a fellow enthusiast, also made her own formulation which she called “Soda Pop!” to challenge his friend Choi. To know which formulation is better, they sought to determine the carbonic acid content of their soda formulations using titration. In the first part of their experiment, a 0.5 Mlabeled NaOH solution was standardized against 0.350 grams of KHP (MW = 204.22 g/mol) primary standard that is 99.6% pure. The titration required 3.16 mL of the NaOH solution to reach the phenolphthalein endpoint. In the second part of their experiment, Choi and Ulan independently prepared their samples by taking 25.0-mL of their soda sample and diluting it to 30.0 mL. Using the same titrant and indicator, Choi’s “Sodalicious” required 1.39 mL of the standardized titrant to reach the endpoint, while Ulan’s “Soda Pop!” required 0.926 mL of the same titrant to reach the endpoint. D. Calculate…
- Consider these compounds: A. Al(OH)3 B. Ag3PO4 C. Zn3(PO4)2 D. Ca3(PO4)2 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters without punctuation, e.g, ABC.) Without doing any calculations it is possible to determine that barium phosphate is more soluble than , and barium phosphate is less soluble than . It is not possible to determine whether barium phosphate is more or less soluble than by simply comparing Ksp values.You are given an 18% solution of sodium imidazole. What mass of imidazole (in g) would be in 20 mL of this solution? a. You need to use the sodium imidazole stock solution from Q11 to make a dilute imidazole solution (final volume 180 mL) at a final concentration of 0.2 M. The molecular weight of imidazole is 90 g/mole. What volume of imidazole stock would you use (mL)? b. You need to use the sodium imidazole stock solution from Q11 to make a dilute imidazole solution (final volume 180 mL) at a final concentration of 0.2 M. The molecular weight of imidazole is 90 g/mole. What volume of water would you add (mL)?An unknown liquid has a freezing point of 25.5oC, however, it absorbs H2O (as impurity) on exposure to humid air. If the freezing point of a 125g sample of the liquid is 24.59 oC, how many grams of H2O are present in the sample? Kf values of the liquid and water are 4.68 oC/m and 1.86 oC/m respectively.
- A 10.0 mL sample of household ammonia solution required 25.10 mL of 0.245 M HNO3 for neutralization. Calculate (a) the molar concentration of the ammonia and (b) the mass/mass % concentration of ammonia(17.04 d/mol), given a solution density of 0.985 f/mL. HNO3(aq) +NH3(aq) ---> NH4NO3(aq)Write the balanced NET ionic equation for the reaction when ZnCl₂ and KOH are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.I need this answered ASAP What total volume must 85.0 mL of 1.30 M phosphoric acid solution be diluted to prepare 0.650 M phosphoric acid solution?