You    have    a    250    mM    stock solution of    Tris.    What    volume    of    this    stock    solution     should    be    added    to    water    to    prepare    500    mL    of    7.5    mM    Tris?

Q: What concentration of Cu2+ is needed to have a concentration of Cu(CN)42- equal to 2.0 × 10-5 M in a...

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Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E A D B Where would the bicyc...

A: Answer: This question is based on the conservation of energy according to which total energy ( which...

Q: Select the single best answer. Which of the following has more atoms: 3.13 g of hydrogen atoms or 17...

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Q: Be sure to answer all parts. Industrially, vanadium metal, which is used in steel alloys, can be obt...

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Q: The energies, E, for the first few states of an unknown element are shown here in arbitrary units. 1...

A: An electron will absorb the energy to go the next higher energy level. The energy of electron ejecti...

Q: Gaseous methane (CH,) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) an...

A: Mass of methane= .12 g, molar mass= 16 g mol-1 mass of O2=27.6 g, molar mass= 32 g mol-1 mass of met...

Q: In the coal-gasification process, the reaction is: CO(g) + H2O(g) ⇌ CO2(g) + H2S(g) + H2(g). With 0....

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Q: If ferric sulfide reacts with oxygen, how many moles of ferric sulfide is required to produce 6g of ...

A: 4FeS +7 O2 = 2 Fe2O3+ 4 SO2

Q: 15) How many moles of 0 atoms are in 2.5.19 of CaSO,?

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Q: What is the mass of 4.50 x 10- Cu atoms? Multiple Choice 7.47 x 10 amu 7.47 x 10 g 4.75 g 63.55 amu

A: Calculation of mass of cu atom:

Q: Activity 2 HEATING CURVE OF ETHANOL E BOILING F GAS AV LIQUID B MELTINGC -115-- SOLID TIME T'E'N°A Q...

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Q: [2 SO: (g) + O: (g) 22 SO: (g)] The following reaction has an equilibrium constant of 4.34. A 12 M s...

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Q: Calculated Data for the Equilibrium Constant Kc: TABLE 3 - Concentrations for tube 1 Fe3+ HSCN FESCN...

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Q: 100 mL of O, 100 MOLAR HCe is to bie neutralized usna Ob250 M wihany NaoH. How selutión inust be Wed...

A: Given :- molar concentration of HCl = 0.100 M  Volume of HCl solution = 100 mL  Molar concentration ...

Q: (CH,(CH,),CH,) Liquid octane reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

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Q: How does a catalyst affect the rate of reaction? Explain each in at least 5 sentences.

A: Effect of catalyst on rate of the reaction:

Q: The pH of an aqueous solution of 0.470 M hydrocyanic acid is

A: Given :- concentration of hydrocyanic acid = 0.470M  To be calculated :-  pH of solution  pH = -log[...

Q: Calculate the average atomic mass of copper. The percentages denote the relative abundances. Isotope...

A: Average atomic mass (in amu),           = Σ (atomic mass × abundance) of isotopes

Q: You are given the two following reactions below. You must compare them and circle the one that is fa...

A: The functional group is a key constituent that furnishes the characteristic chemical reactions to th...

Q: Mass of beaker 50.5g Mass of marble before reaction 3.0g Mass of marble after reaction 1.8g Vo...

A: The Chemical reaction follows the law of conservation of mass. According to the law of conservation ...

Q: 2. Aluminum bromide (AIBr3) and sodium hydroxide (NAOH) react to form aluminum hydroxide (Al(OH)3) a...

A: Given that aluminum bromide and sodium hydroxide are reacted to form aluminum hydroxide and sodium b...

Q: Determine the heat of reaction for the decomposition of calcium carbonate CaCO3(g) → CaO(s) + CO2(g)...

A: Determine the heat of reaction for the decomposition of calcium carbonate CaCO3(s) → CaO(s) + CO2(g)...

Q: 2. What is the empirical formula for a compound containing 26.57% potassium, 35.36% chromium, and 38...

A:  The empirical formula of a compound can be defined as the simplest whole number ratio of atoms pres...

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 2....

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Q: Pentaborane B5H9(s) burns vigorously in 02 to give B203(s) and H20(1). Calculate AHrxn for the combu...

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Q: Which of the following reagents would best distinguish Cu(OAc)2 and Zn(OAc)2? O a. KSCN O b. K4[Fe(C...

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Q: 1. The diagram below shows the structure of a triglyceride. M^^^ A CH2 в CH-O-C ČH;-O- a. What type ...

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Q: Given that pKa = 4.72 at 25 °C for HN3, what is the pH of 0.125 mol L-1 NaN3(aq) at 25 °C? What is t...

A: A question based on equilibrium concept that is to be accomplished.

Q: 2. The Henry's law constant for helium gas in water at 30°C is 3.7 x 10-4 M/atm and the constant for...

A: Answer is given below

Q: Liquid hexane (CH3(CH2),CH3) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

A: Given, Liquid hexane (C6H14) react with gaseous oxygen (O2) to produce gaseous carbon dioxide (CO2) ...

Q: 1) following transformation. Choose the most suitable reactant(s), product(s), or reagent(s) for the...

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Q: CH CH3 ON CH3 HNO, CH HSO, .CH CH NO2

A: ->If electron donating group present then ortho ,para product is major. ->If electron withdraw...

Q: ) Febrz + kzC0s 5) K2 C03+ Baliz CO(OH)3 + HNO3 + > #Cl and KOH to 9 HBr and Fe(OH)s ->

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

Q: Click in the answer box to activate the palette. Determine the empirical formula of a compound havin...

A: Element % K 24.74 Mn 34.76 O 40.50    

Q: Given the standard heats of formation for the following compounds, calculate AH 208 for the followin...

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Q: Suppose a 500. mL flask is filled with 1.3 mol of CH, 0.60 mol of CS, and 1.5 mol of H,. This reacti...

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Q: Mass of beaker 50.5g Mass of marble before reaction 3.0g Mass of marble after reaction 1.8g Vo...

A: CaCO3 + 2HCl ---> CaCl2 + H2CO3  Molar mass of calcium carbonate 100g  Mass of calcium carbonate ...

Q: Enter your answer in the provided box. Calculate the standard entropy change for the following react...

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Q: Which of the following processes is exothermic, given the following N2lg) + 202lg) - N204) AH"=9.67 ...

A: Any reaction that gains energy is endothermic while exothermic reaction looses energy. So, for exoth...

Q: A reaction occurs between hydrogen gas and chlorine gas. This causes their container to expand from ...

A: Given that, The amount of work done in the reaction, W = 14 J Let the container expand from V1 to V...

Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

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Q: Determine the cmpd name?

A: Rules for IUPAC NOMENCLATURE -  1. First of all, mark the longest chain of hydrocarbon containing mo...

Q: Show calculations for making 1X TAE gel running buffer and 1.25% agarose gel for your experiment.

A: Buffer is a solution that tends to maintain pH of the solution when acid or base is added to it. Per...

Q: When 0.7521 g of benzoic acid was burned in a calorimeter containing 1,000. g of water, a temperatur...

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Q: Be sure to answer all parts. Heating copper(II) oxide at 400°C does not produce any appreciable amou...

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Q: Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium b...

A: Aqueous hydrobromic acid reacts with sodium hydroxide to form aqueous sodium bromide and water. The ...

Q: Which of the following statements does NOT explain why KHP is a suitable primary standard in an acid...

A:   KHP is a suitable primary standard in an acid-base titration. Here we have to find out the stateme...

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

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Q: 11- find the normality N of NaCl soluton , if w/v% = 0.85%. M.Wt =58.5? 0.145 0.0145

A: Given, w/v %=0.85%  M.Wt of NaCl = 58.5 g mol-1 Normality = ?

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E Where would the bicyclist h...

A:

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.