How many milliliters of water are present in 250.0 mL of a 15.0% by volume aqueous hydrochloric acid solution?

Q: If 150 grams of water is heated from 20oC to 30oC, the number of joules of heat energy absorbed…

A: number of joules of heat energy absorbed is given below

Q: 39 40 41

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Q: 3) N Br ->

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Q: There are four hydrogen atomic emission lines in the visible region of the electromagnetic spectrum.…

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Q: A voltaic cell uses the following reaction. Under standard conditions the potential is 2.35 V. What…

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Q: 9) Draw the condensed structural formula of the ester product for the esterification of the…

A: In this question, we have to draw the condensed structure formula of the ester product formed and…

Q: If ΔG° for a reaction is greater than zero, what is known about the equilibrium constant?

A: Given : ∆G° > 0  To determine :- value of K

Q: What is the energy of a photon that excites the P rovibrational branch of a molecule with initial…

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Q: Calculate the heat absorbed when 68.8g of ice at -30 C is converted to steam at 160 C

A: The process has steps like  I. Heating of ice to 0oC II. Melting of ice at 0oC III. Heating of water…

Q: Pentane (C5H12) and hexane (C6H14) form an ideal solution. At 25°C the vapor pressures of pentane…

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Q: 1. What is the MW of the analyte? 2. What is the meq of the analyte? 3. What is the weight (in…

A: Since you have asked a question with multiple subparts we will answer the first three for you. To…

Q: Redox reaction is: a. SO2 + 2H2S --2S + 2H2O. O b. SO3 + 2KOH --K2SO4 + H2O; O c. 2K2CRO4 + H2SO4…

A: The correct answer is given below

Q: Step 1. 4NH, + 50. 2(g) + 4NO (g) + 6H,0 G 3 (g) Step 2. 2NO (g) + 0. 2(9) + 2NO 2(9) Step 3. 2NO…

A: Since you have posted multiple questions according to guidelines I am solving first three if you…

Q: At 25.0 oC, Kw = 1.0 x 10-14 and neutral water has a pH of 7.00. At 98.4 oC, Kw = 5.11 x 10-13 and…

A: Kw = 5.11 × 10-13  Neutral water has a pH of .....?....

Q: Will a precipitate form when in an aqueous solution of 2.1 x 10^-3 mol/L lead (II) nitrate is added…

A: Here an aqueous solution contains 2.1×10-3M Pb(NO3)2 and 6.0×10^-3 M NaI . We have to predict…

Q: At 33.0 ºC and a pressure of 752 torr, a gas was found to have a density of 3.33 g L-1. Calculate…

A: Given :-  Pressure = 752 torr  Temperature = 33.0°C  Density = 3.33 g.L-1  To find :  Molar mass of…

Q: The common laboratory solvent chloroform is often used to purify substances dissolved in it. The…

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Q: Sometimes in lab we collect the gas formed by a chemical reaction over water (see sketch at nght).…

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Q: write down adetaled mechanism CHOH 3 아

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Q: Balance the following oxidation-reduction reaction as if it were to occur in a basic solution. I(aq)…

A: A redox reaction is balanced by balancing the mass and charge. Hence the number of atoms of all the…

Q: Molten ScCl3 can be electrolyzed to form metallic Sc. For what duration should an electrolysis be…

A: 1.) First we calculate moles of SC using mass and molar mass.  2.) Then we write a balanced chemical…

Q: Suppose the O, gas evolved by a certain chemical reaction taking place at 50.0 Cis collected over…

A: Given: Temperature = 50oC Volume of gas collected in the collection tube = 118 mL To determine: Mass…

Q: 田 Solution Conductivity (us/cm) A- CaCl, 9362 A- AICI, 11707 A- NaCl 5214 B- HC,H;O2 461 B- HCI…

A: The ability of an aqueous solution to transfer an electrical current is measured by conductivity…

Q: Complete the following statement: Resulting from the electron capture of (A)-168 is a daughter…

A: Given,  Resulting from the electron capture of (A)-168 is a daughter nuclide with (B) neutrons and…

Q: In self-contained breathing devices used by first responders, potassium superoxide KO2 reacts with…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: Identify the following structure if it will give a positive result to Fehling's Test

A: Fehling's test is used for identification of aldehyde and ketone fo not give Fehling's test.

Q: The vapor pressure of diethyl ether (ether) is 463.57 mm Hg at 25 °C. A nonvolatile, nonelectrolyte…

A: The solution of the given question is

Q: The label on a cylinder of a noble gas became illegible, so a student allowed some of the gas to…

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Q: 2 Propose a mechanism to account for the formation of this product. он H2SO4,Heat

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Q: Br

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Q: What is the HETP of a column that is 200mm with a retention time of 5mins. The (effective)…

A: Separation factor is calculated as: a=tr-tmtm where tr is the retention time and tm is the dead…

Q: e. Primary amine 2: A compound C5 H1 00 gave the following spectral da 1H NMR spectrum doublet,…

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Q: number of electrons in the 3p

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Q: How does one use ΔH notation to calculate energy changes in a chemical reaction?    Is the reaction…

A: ∆H is used to denote the enthalpy change of the reaction. Enthalpy is a measurement of energy in the…

Q: Determine the molar solubility for Ag.CrO. (Ksp = 1.2 × 10-1²). PREV 3 NEXT Based on your ICE table,…

A: Ksp is the solubility product of a sparingly soluble salt.

Q: Balance the following oxidation-reduction reaction that occurs in an acidic solution using the…

A: First we determine reduction half reaction from given cell reaction.  Reduction is the lose of…

Q: At 25°C, the Ka for a certain monoprotic base B is 2.5x10-5. What will be the Kb value for the given…

A: Given :- Ka = 2.5 × 10-5  To determine :- Kb at 25°C

Q: Draw the structure(s) of the major organic product(s) of the following reaction. „NH, NANO aqueous…

A: Aromatic amine reacts with sodium nitrite and hydrochloric acid at 0oC temperature to form a…

Q: 1. DBU, 80 °C A HO `OH B CI OH H 2. H,О, H* H-O* TSCI, Et;N 1. Ph;P D . 2. NaH

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Q: Calculate the ff: 1. volume at equivalence point: 45.45 mL 2. cell potential at equivalence point:…

A: The above question can be calculated using the Nernst equation where  E is the reduction of…

Q: QUESTION 5 Identify which category the molecule below belongs to: CHO HO- но HO- H- HO. ČH2OH O…

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Q: Enter your answer in the provided box. For the reaction N2(g) + 3H2(g) ⇌ 2NH3(g) Kc is 9.39 at…

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Q: write down adetaled mechanism fer the fllowing? otH H*

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Q: Consider the following equilibrium system at 661 K. coci, (9) Co(9) + Clz(9) If an equilibrium…

A: K is the ratio of  product of concentration of products raised to their stoichiometric coefficient…

Q: The density of so LIF IS about 2,640 kg/m ute the nearest- ighbor dist in LIF, that is, tne distance…

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Q: Determine the molar solubility for Srs(PO.): (Ksp = 1.0 × 10-3"). 3 NEXT > Based on the given…

A: Since Sr3(PO4)2(s) is solid, its concentration doesn't change considerably. Hence we can ignore the…

Q: Electrochemical cells can be used to measure ionic concentrations. A cell is set up with a pair of…

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Q: Consider three 1-L flasks at STP. Flask A contains NH3 gas, flask B contains NO2 gas, and flask C…

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Q: You obtained the following raw data when setting up a Bradford standard curve:   BSA (mg/ml)…

A: First, we have to find the corrected absorbance values by subtracting the absorbance of each value…

Q: 18) What will the temperature of a 2100. mL sample of nitrogen at 526. mm Hg and 42.4oC be, in oC,…

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