Most of the titrations that have done to date require to titrate an acid with a base until we see a pink color. How would we know you’ve reached the end point if we were titrating a base with acid? Assume phenolphthalein as the indicator.

Q: An 18-0-18 + 3% iron (Fe) fertilizer must be applied to supply 2.0 pound of N per 1,000 square feet ...

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Q: density

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Q: Referring to Question 2 in the Feedback Form, calculate the rate constant (k) for the reaction of Ye...

A: We would use the equation which is used to plot ln(abs) vs time plot.  

Q: Fluorine-18 decays to form a positron and oxygen-18. After 90.0 minutes, 1.00 18O is present relativ...

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Q: A sample of gas mixture from a neon sign contains 3.32 x 10-2 mol Ne and 4.65 x 10-2 mol Kr. What ar...

A: Mol of Ne = 3.32 x 10 -2 mol Mol of Kr = 4.65 x102 mol

Q: When the kinetic energy is higher due to the decrease in temperature, the rate of reaction slows dow...

A: Collision theory of reaction rate: According to the collision theory of reaction rate, the randomly ...

Q: 17. In the space provided below please draw (cis)1,3-dimethylcyclohexane in the most unstable chair ...

A: Concept:  1) most unstable conformation meaning that the molecule will have higher energy & this...

Q: Suppose 11.0 ml of 0.880 M CoCl, solution is added to 53.0 ml of 0.590 M NICl, solution Calculate th...

A: Given: 11.0 mL of 0.880 M CoCl2 solution is added to 53.0 mL of 0.590 M NiCl2 solution.  We have to ...

Q: Propose a Lewis structure for the carbonate ion contains one double bond

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Q: + NaHGO3 HO.

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Q: What is the milliequivalent weight (g-meq) of Magnesium Oxide if it's molecular weight is 40 g/mol

A: Equivalent weight: The equivalent weight of an element is the mass of the element in gram which comb...

Q: What is the characteristic that distinguishes metals from one another?

A: The characteristics that distinguishes metals from one another is  malleability, ductility, Electric...

Q: Use the following energy diagram for a two-step reaction as reference. В Po te nti A al Reactant En ...

A: The energy diagram given is,  

Q: columns of equal length (time in min). Column 1 Column 2 10 suodsa opaad

A: Answer. For Component A we have 8-1.2 = 6.8

Q: Draw the major product of this reaction. Ignore inorganic byproducts. CN 1. LIAIH4 (excess) 2. H3O* ...

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Q: N. A. C. D. 4000 2100 Waenumers dcm 60 50 30 20 10 4000 3500 3000 2500 2000 1500 1000 500 Wavenumber...

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Q: Why is the vapor pressure of the solution containing a non-volatile solute lower than the pure solve...

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Q: 4. a) Predict the major product of the following reaction: excess b) Provide the mechanism for the r...

A: The answer is as follows:  

Q: Calculate the mass percent of H in B4H9CI. %

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Q: The vapor pressure of pure CCI4 liquid is 504 mm Hg at 65°C. Now we prepare several 12/cCl4 solution...

A: The correct option is option B.

Q: A solution is prepared from 2.00 x 10 2 g of sucrose (342g/mol) and 3.5 x 10 2 g water (18 g/mol). T...

A: Given values- Weight of Sucrose = 200 gm Weight of water = 350 gm Vapour pressure of water = 17.5 mm...

Q: The equilibrium constant, Kc , for the reaction 2 SO2 (g) + O2 (g) → 2 SO3 (g) is 6.90 x 103 . (a) ...

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Q: How did you determine the values of pka1 and pka2 from the titration curve?

A: For the titration of a polyprotic acid with a base, we get more than one equivalence points. We can ...

Q: 8. Determine the glement of unsaturation from the compounds or formulas below А. В.

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Q: What chemistry properties or structure make Salicylic acid cannot be taken orally? Is it due to the ...

A: Salicylic acid is an aromatic compound with basic, -OH group and acidic -COOH group present at ortho...

Q: 4-bromo-4-ethylhept-1-ene polar or nonpolar? why

A: The answer is as follows:  

Q: uots of 20-µl cell ly

A: To start experiment we should first have to know which equipment and glassware we need so that we ca...

Q: 2.050 g of an unknown sample contains H, S, and O. If the compound contains 0.0500 gHand 0.800 g of ...

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Q: 7. Calculate mass defect and binding energy for 14C atom.

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: What is the mass in grams of Pblz (s) formed if 2.23 g of potassium iodide is reacted with excess le...

A: Given that, Mass of KI = 2.23 g  Molar mass of KI= 166 g mol-1 Molar mass of PbI2 = 461.01 g mol-1  ...

Q: A 2-ml seawater sample was diluted to 100 mL with distilled water. A 16-ml aliquot of the diluted sa...

A: Given: Volume of sample used = 2 mL. Initial sample is diluted to 100 mL. And Mohr method is used.  

Q: Draw a mechanism for the Fischer esterification to synthesize Wintergreen.

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Q: ОН provide 2 routes. One of the routes must use reactions from Chapter 21 of HO НО.

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Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of ...

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Q: Complete the table below by deciding whether a precipitate forms when aqueous solutions A and B are ...

A: When two aqueous solutions are mixing together gives any solid product that will precipitate. 

Q: Which of the following elements is NOT a metal? A) arsenic B) indium C) iridium D) lithium E) luteti...

A: Arsenic is a metalloid and we can say it a metal.

Q: Which molecule will be in excess when pressure is decreased in the equilibria  2NO2 ⇋ N2O4  ?

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Q: Nitrogen dioxide is produced by reacting nitric oxide and oxygen: 2NO(g) + 02(s) $2NO2(g) ; AH° = -1...

A: Given, 2NO(g) + O2(g) ⇔ 2 NO2(g) The reaction is exothermic as the sign of the enthalpy is negative.

Q: Why does freezing point decrease and boiling point increase when solute is added? Please answer in n...

A: Please find the below attachment.

Q: Let us now pretend that you are a cosmetic chemist. Since you already know the different cosmetic in...

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Q: Calculate the heat needed at 0oC to make each of the following changes of state. Indicate whether he...

A: Given : We have to calculate the heat needed for the given processes.

Q: 8. Draw a cooling curve for a sample of steam that cools from 110°C to -10°C. Indicate the segment o...

A: Answer: To cool the steam heat will be taken off from it and it will follow the cooling pattern like...

Q: > On a page titled Chiral Carbons print/draw the expanded structure of your molecule. o Determine if...

A: Carbon with four different groups/atoms attached to it is called as chiral carbon. Given structure h...

Q: Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to h...

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Q: What is the percentage composition by mass of the substance shown below? % C = % S = % H = How many ...

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Q: Question 1. For the following complexes, count the number of electrons using the ionic and covalent ...

A: Given,  a) Fe(H2O)63+  b) V(CN)63-  c) CuI42-  d) RuCl64- 

Q: 19.7 cm3 of a pure vapour, at 1.092 atm, and 99.0 °C has a mass of 0.0466g. Calculate the molar mass...

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Q: Consider the following Lewis structure. (Lone pairs a What is the hybridization of each C, N, and O ...

A: Pie bond does not participate in hybridization

Q: When sodium acetate is added to a solution containing sodium citrate, the equilibrium will shift to ...

A: Sodium acetate is a basic salt as it formed from a strong base Sodium hydroxide and a weak acid acet...

Q: 9. A gas obeys the van der Waals equation with P, = 3.040 x10 Pa and T. 473 K. Calculate the value o...

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