Q: The number of particles in one mole of a substance is equal to what? Select all that apply.…
A: The number of particles in one mole of substance is equal toavogadro's number6.02× 1023
Q: Lake Michigan holds 1.3x10^15 gallons of water. If just Chicago removed water from the lake and it…
A: The conversion factor we should use in this case:1 year = 365 days
Q: Which of the following is a triprotic acid O a. H₂CO3 O b. H3P. O C. HCIO3. Od. H3PO4.
A: Polyprotic acids give more than one proton and they dissociate in more than one step. A triprotic…
Q: Q. You need to make a 200 mL stock solution that contains 500 ppm of n-butanol. How much, in grams,…
A: Note: 1 ppm = 1 mg/LConcentration of n-butanol solution = 500 ppm = 500 mg/LVolume of a solution =…
Q: Н- I I н н н н н H I I I Н H н H О
A: This problem is based on general organic chemistry.We know that Carbon atom has 4 bonds , O atom has…
Q: Draw the skeletal ("line") structure of an isomer of this molecule: Click and drag to start drawing…
A:
Q: 4. Fill in the bond angles for the molecules shown. (a) O-C-O bond angle = 11 H-C-OH (b) CH3-O-CH3…
A: The O-C-O bond has an angle approximately similar to that of a trigonal planar molecule, which is…
Q: 4. A car tire was inflated to a pressure of 24 lb/in² (1 atm = 14.7 lb/in²) on a winter's day when…
A: Provided,The initial pressure of the tire is 24 lb/in2.initial temperature is -5 oC. & final…
Q: What is the Maximum Buffering Capacity for each buffer located in the picture. Maximum buffer is…
A: To determine the maximum buffering capacity for each buffer given in the image below:
Q: A mixture initially contains A , B , and C in the following concentrations: [A] = 0.500 M , [B] =…
A: Given reaction is :A+2B⇌C Initially,[A] = 0.500 M,[B] = 0.950 M, and [C] = 0.450 MAt equilibrium,[A]…
Q: An equilibrium mixture contains 1.50 mol of nitrogen, 4.45 mol of hydrogen and 7.05 mol of ammonia…
A: Given that: To find out:
Q: Arrange the following substances in order of increasing magnitudeof lattice energy: KCl, SrO, RbBr,…
A: Lattice energy is inversely proportional to the separation between the cation and anion and directly…
Q: Even if the reaction is possible based on thermodynamics, it could be so slow that it will not occur…
A: Answer :---- The correct answer is : -----TrueIn a thermodynamics, a reaction can be feasible if it…
Q: Manipulation of Variables For each of the following, solve for the variable indicated. You only need…
A:
Q: Prefixes/Units of Measure Use the correct significant figures and units of measure. Write your…
A: One unit can be converted into another by using conversion factors.The objective of the question is…
Q: 7. What is the equilibrium law expression for the following reaction? CaCO3(s) CaO(s) + CO₂(g) 8.…
A: Equilibrium expression is defined as ratio of products concentration to the reactants concentration…
Q: 3. Circle three allylic carbons in thiamine to the right. How many allylic hydrogens does it have?…
A: Vinylic carbon : These are those two carbons which contain double bond between them. Allylic carbon…
Q: What functional group(s) do the molecule contain? Select all that apply. arene alkyne ester alkene…
A:
Q: In a titration of 16.0 mL of a .425 M solution of a diprotic acid H2C4H4O6 (tartaric acid) with .155…
A: Tartaric acid (H2C4H4O6) is a diprotic acid, which means it can donate two protons (H+) per…
Q: 9. A solution with a pOH of 8.50 at 25°C has a pH of
A: pH and pOH shows the acidic and basic measure of any solution or substance. pH = -log [H]+pOH = -log…
Q: AG=-nFE Where: AG =Gibbs Free Energy change n = moles of electrons F = Faraday's constant E = cell…
A: Answer:-This question is answered by using the simple concept of writing the formula using the given…
Q: 1. Summarize the steps performed when using an analytical balance. 2. How could you distinguish a…
A: To summarize the steps performed when using an analytical balance.“Since you have posted multiple…
Q: a. b. CH3 + CH 3* C. (CH3)2C(OH)2 d. CH3COOCH3 + H₂O CH3CH3 (CH3)2C=O + H₂O CH3COOH + CH3OH
A: refers to the standard entropy change of a chemical reaction or a physical process under standard…
Q: Allenes are a class of compounds that have two adjacent double bonds. The simplest allene…
A: We have been given an allene and we have been asked to predict hybridisations of two carbon atoms…
Q: 4) The molality of ethyl alcohol in a solution of water (H₂O, MW = 18.02 g/mol) and ethanol (C₂H,OH,…
A: Given,the molality of ethyl alcohol in water solution = 0.376 mol/kgMolar mass of H2O = 18.02…
Q: What does this figure depict? Frequency 12 10 B 4.5 9.5 14.5 19.5 24.5 29.5 34.5 39.5 44.5 Frequency…
A: This problem is based on analytical Chemistry.Here a typical plot is given. We have to identify the…
Q: Rank the highlighted bonds in order of increasing length and in order of increasing strength. H (a)…
A: The carbon-hydrogen single bond length depends on the type of hybridization of the carbon atom. We…
Q: • CO2H 3000 B • OH 2000 C 1500 • CO2H 1000 cmt
A: Given Compounds:A- Cyclohexanoic acidB- PhenolC- Benzoic AcidD- CyclohexanolTo Identify the…
Q: I a N=C₁-C₂ NECT C H 21 Spa 111 จ CH 드 17 H I P11 P11 P1 112 113 14 1 7 + SP³1111 Spa
A: If an atom has degree of hybridization as 2, it means atom has sp hybridization. In case of degree…
Q: if a nucleus were the size of a pea or ball bearing (1/4 inch diameter), the full size of the atom…
A: According to given data of the question here comparitively we have to see the size of atom and…
Q: HO Br I.. Draw the structures of products in each of the following transformations Br OH Br Br 1.…
A: 1st reaction :- Hydrogen of hydroxyl group is most acidic, due to which base attack on that hydrogen…
Q: Charles' law gives us the biggest clue as to how hot air balloons function, but other factors…
A: Noble gases are also known as inert gases ,inert gases belongs to 18 th group of periodic table .
Q: 1. Do a quick google search, and state the difference between an analytical balance and a top…
A: An analytical balance and a top-loading balance are both types of precision weighing instruments…
Q: The correct answer for the addition of 6.5 g + 2.16 g + 1.411 g + 3 g is a) 14.071 g b) 14.0 g Oc)…
A: Addition & substraction : During addition & substraction, answer can not have digit to the…
Q: Show mechanism of how to synthesize the following product from the given reactant.
A: In the given sysntheis the aniline is converted into alkyl phenyl thio ether. The reaction proceeds…
Q: Which isomer category represents the relationship between carboxylic acid and ester?
A:
Q: AG=AG + RTln Q Where: AG = Gibbs Free Energy change AG=Standard Gibbs Free Energy change T =…
A: The Gibbs Free Energy equation is given by the equation:ΔG = ΔG° + RT ln(Q)Where:aàΔG = Gibbs Free…
Q: The molality of ethyl alcohol in a solution of water (H2O, MW = 18.02 g/mol) and ethanol (C2H5OH,…
A: Answer:The mole fraction of a compound in a solution is equal to the ratio between number of moles…
Q: How many significant figures are reported in measurement of the mass of object shown below? a. 5…
A: Details
Q: In the laboratory you are asked to make a 0.359 m chromium(II) nitrate solution using 255 grams of…
A:
Q: You are asked to administer a daily IV drip of 45.0 mL of ceftriaxone for meningitis for a 5-yr-old…
A: Question 1Given Data:Weight of 5-yr-old = 18.0 kgConcentration of IV solution = 40.0 mg/mLVolume of…
Q: Current Attempt in Progress The values of A Hap, and A Soap for acetone are 31.3 kJ mol-¹, and 95.1…
A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…
Q: A fictitious element X has an average atomic mass of 122.339 u. Element X has two naturally occuring…
A: Isotopes can be defined as the elements having same atomic number but different mass number due to…
Q: An aqueous lactose (C12H22011) solution of unknown concentration is found to have a freezing point…
A:
Q: Part A) For the indicated Carbon atom, give its a list of all hybridized and unhybridized atomic…
A: In the process of hybridization, the atomic orbitals of similar energy are mixed together such as…
Q: 20. If the pH of a solution is 5.22, what is the concentration of hydroxide ions in the solution?…
A: 'p' in pH is derived from the word 'potenz' which means potential. So, pH means potential of…
Q: Calculate the amount of heat needed to melt 66.7 g of ice (H,O) and bring it to a temperature of…
A:
Q: 7. What is the equilibrium law expression for the following reaction? CaCO3(s) CaO(s) + CO₂(g)
A: Since you have posted multiple questions, we will provide the solution only to the first question as…
Q: Order by Friedel Crafts acylation rate: benzene, methoxybenzene, and acetophenone. Explain briefly.
A:
Q: Draw the Lewis structure of the peptide "YQRWGLA"
A: Given Peptide: YQRWGLATo draw the Lewis structure of the peptide.
Step by step
Solved in 4 steps with 4 images
- concentration of Na2S2O3 =1 mCarbonic acid (H2CO3) and bicarbonate ion (HCO3-) are used as a buffer system to regulate the blood An exhausted marathon runner experienced acidosis as his blood pH become 7.15. What is the ratio of HCO3- to H2CO3 in this pH? (Ka of H2CO3 = 4.2 x 10-7)What are the concentrations of imidazole hydrochloride and imidazole if the final solution concentration is 0.100 M and the pH is 7.30? pKa of imidazole hydrochloride is 6.99
- If 20.00 mL (0.0200 L) of the oxalic acid solution prepared in question 6 is used to titrate a NaOH solution, how many moles of H2C2O4 is used?If vinegar contains 4% (w/v) of acetic acid (Ka= 1.8x10-5), calculate the pH of solution made by mixing 50 ml of this vinegar with 200 ml of distilled water. What is the pH of a solution of 0.06 M of H2CO3, pKa1 = 6.4 and pKa2= 10.3Consider two acids: HCO2H (formic acid, pKa = 3.8) and pivalic acid [(CH3)3CCO,H, pK = 5.0]. (a) Which acid has the larger K? (b) Which acid is the stronger acid? (c) Which acid forms the stronger conjugate base? (d) When each acid is dissolved in water, for which acid does the equilibrium lie further to the right? %3D The pKa values in Table 2.1 span a large range (-7 to 50). The pK, scale is logarithmic. small difference in pK, translates into a large numerical difference, For example, the diffe between the pK, of NH3 (38) and CH2=CH, (44) is six pKa units. This means that NH, is one million times more acidic than CH,=CH,.
- You have a 200 mM solution of polyionic acid (pKa 4.2 and 11.6) at pH 5. What are the concentrations of all ionic species in the solution (concentration of [H+] [HA] and [A-])?Quinine (C20H24N2O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug. For quinine pKb1 = 5.1 and pKb2 = 9.7 (pKb = −log(Kb)). Only 1.0 g of quinine will dissolve in 1900.0 mL of water. Calculate the pH of saturated aqueous solution of quinine. Consider only the reaction Q + H2O QH+ + OH− described by pKb1, where Q = quinine.Given: 0.25 M Benzoic acid pkb of benzoate is 9.8 Chemical equation: PH [H3O]+ pka ka POH OH + 1.58 x 6.28 x 10-1⁰ 10-6 M O O O O H 6.31 x 10-5 OOO 3.97 X 10-³ M ol 2.40 OO K H 5.20 11.6 8.8 O O O O O O O O O O O O O O O O O O O O O оо 4.2 O OO