. A mouthwash solution at 298.15 K contains NaH₂PO4 at a concentration of 5% by weight, i.e. 5 g in 100 ml solution. Calculate this concentration in mol dm-³ show all your workings.

Q: Do ensure accurate recall of the experiment data at minimum one should what

A: A question based on research methodology, which is to be accomplished.

Q: Analysis: 1. Determine the concentration of acetic acid in the flask 2. Write the neutralization…

A: Given :  Volume of CH3COOH = 25.00 ml  Molarity of NaOH = 0.18 ml  Volume of NaOH = 20.22 ml

Q: 8. Which of the following elements would have a significant increase in ionization energy between…

A: When an electron is removed from the outermost shell of an isolated gaseous atom the amount of…

Q: Choose the frequency of a peak that is most likely to correspond to an sp³ C-H stretch in an IR…

A: Frequency is directly proportional to force constant(K)Hybridisation affects force constant in the…

Q: 5. a. Draw the major product of the following reaction. NaCN Br b. Determine the absolute…

A: Alkyl halide gives nucleophilic substitution reactions. The mechanism of nucleophilic substitution…

Q: 33. Show how you would prepare the following compounds using the starting materials shown and any…

A: Actually both are complicated synthesis I tried my best.

Q: Principle: Direct permanganometry The percentage purity of hydrogen peroxide set by the USP is 2.5 –…

A: Given: Volume of H2O2 = 2.0 mL density of = 1.45 g/mL Concentration of KMnO4 = 0.1 N

Q: 04. Give the expected major product or products in each of the following transformations. Clearly…

A: In this question, we want to determine the major product (s) and also clearly mentioned the…

Q: 18 16 14 12 10 8 6 4 2 0 0 y = 0.004x +17869 R² = 0.8387 20 40 60 80 y = -0.0445x + 16.504 R² = 0.82…

A: Solution- Extrapolation refers to estimating an unknown value based on extending a known sequence of…

Q: 06. Stereochemistry and Chirality. Determine which of the following structyres are chiral (C) or…

A: If POS or plane of symmetry is present in a molecule then it's achiral if it's absent then it's…

Q: The three graphs below were created during a kinetics experiment at 25°C for the decomposition of a…

A: We have to indentify the order of reaction

Q: li 5. Percent yield calculation: a. Calculate theoretical yield: Mass unknown 1 Mol carbonate grams…

A:

Q: What is the IUPAC name of the following compound?

A: For naming of an organic molecule,Take the highest carbon containing carbon chain as parent or base…

Q: Draw the major organic product of the reaction shown below. HO + HCI • You do not have to consider…

A: Tertiary alcohol with HCl results into substitution product.

Q: Write the balanced equation for the ionization of the weak base pyridine, C,H,N, in water, H,0.…

A: C5H5N is a base. It is soluble in water. It takes proton from the water to produce its conjugated…

Q: The molecule Br₂CHCHCI2 has how many chiral centers? a) 0 b) 4 c) 2 d) 1 e) 3

A: A chiral center is a carbon attached to four different groups.

Q: What is the product of this reaction sequence? В. OH OH 1. НО 2. LIAIH 3. H2O, H, heat С. D. OH, H*…

A:

Q: d. Only products will be present. e. Roughly equal amounts of products and reactants will be…

A:

Q: Assign a common name to each of the following amines. CH3-NH–CH,–CH3 CH3-CH2-CH2-NH2…

A:

Q: A gaseous compound is 30.4% nitrogen and 69.6% oxygen by mass. A 5.25-g sample of the gas occupies a…

A: Answer: option a. N2O4 is the molecular formula of the compound.  given,% of nitrogen = 30.4%% of…

Q: The synthesis of methanol from carbon monoxide and hydrogen gas is described by the following…

A: To solve this problem we have to identify the numerator and denominator .

Q: (c) What is the energy released (in both MeV and J) when a single radium-224 atom undergoes alpha…

A: Answer -

Q: 14. A sample of 0.45 mol of the weak acid HCIO (pKa = 7.54) make 0.750 L of solution. What is the pH…

A: The given buffer solution is made up to weak acid  HClO and it's salt NaClO. Given pKa of acid is…

Q: 3H 3H 2. The following synthesis was planned. The 'H NMR spectrum of the final product was run and…

A: Number of signals: It tells us about how many sets of protons with different electronic environment…

Q: What is the pH of a solution with [OH-] = 1.8x10-5? a. 4.75 b. 9.25 C. 7.00

A: We have the concentration [OH-] = 1.8×10–5 We need to calculate the pH of this solution.

Q: A sample of 0.43 1 make 0.750 L of solution. What is the pH of the solution? a. 7.06 b. 8.02 C. 3.88…

A: We have 15.0 mL of 0.20 M HCl and 20.0 mL of 0.15 M NaOH solutions. We need to find the pH of…

Q: R O Nog light

A: Since you have asked multiple questions and have not specified which one to solve, we will solve…

Q: (b)

A: Since you have posted multiple questions, we can only answer the last one as mentioned by you.

Q: a. How many chemically unique carbon atoms are there in each of the following compounds? Hint: Draw…

A:

Q: I am not sure how to go about this question. I used the rate law eqation for zero order and the…

A: Zero order reactions are those chemical reactions in which the rate of the reaction does not vary…

Q: . A box is 252.50 cm wide, 18.25 cm tall and 6.50 cm deep. Calculate the volume of the box in…

A: Given=> A box having:-       Length (L) or tall=>18.25 cm         Width (W)=>252.50 cm…

Q: 16. What is the K, expression for the dissolution of nickel (II) phosphate in water? [N₁"][PO] [Ni,…

A: Answer:- This question is answered by using the simple concept of writing the expression of Ksp for…

Q: a. Predict the correct number of proton chemical shift signals in each of the following compounds.…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Principle: lodometry The percentage purity of cupric sulfate set by the NF is 98.5 to 100.5%…

A: Given: Concentration of sodium thiosulfate = 0.1 N

Q: 2. Consider an uncatalyzed reaction: S P where k, = 100 s-¹ and k₁ = 1 s¹. Now, consider the same…

A:

Q: The 3D image below is that of an allylic carbocation intermediate formed by the protonation of a…

A: Conjugated dienes can give 1,2 or 1,4 addition products in the electrophilic addition reactions. In…

Q: 11. A weak acid (Ka = 2.5 x 104) is neutralized with a weak base (Kb = 5.0 x 108). What is the pH of…

A: 11. option: a. Acidic 12. option: c. Ka = Kb 13. option: c. NH4ClO4 (aq) 14. option: a.…

Q: 11. If it takes 20-hours for a radionuclide to-decay from 48,000 counts per minute to- 3,000-counts…

A:

Q: The Ca²+ ion in hard water can be precipitated as CaCOs by adding soda ash, Na₂CO3. If the calcium…

A: • First, let's write the dissolution of calcium carbonate as follows CaCO3(s) ---------> Ca2+(aq)…

Q: 8. Which of the following pairs lists the weaker acid first? a. НСІ. НСЮ b. HBrO4, HBrO3 c. H₂O,…

A: we have to select the pair in which weaker acid is written first

Q: The equilibrium constant, K, for the following reaction is 123 at a certain temperature. H₂(g) +…

A:

Q: (c) (a) (e) 7.70 Draw a plausible mechanism for each of the following transfor- mations: (b) (g) (c)…

A:

Q: 24. What is the value of a. 0.087 F+0.080 V Ed=+1.085 V b. -0.845 S,O (aq) + 2e 10,(aq) + 6H(aq)- 6e…

A: The question is based on the concept of electrochemistry. we need to calculate standard cell…

Q: Problems 1-5: Draw the organic structures. 1.5-ethyl-6-butyl-cis-2-nonane 5 Homework

A: