2. A carbonate buffer of pH 10 is needed by a chemist. How many grams of Na,CO, is needed to dissolve in 1.5L of 0.2M NaHCO, to make the buffer? K, of HCO, = 4.7 x 101

Q: 6. Use Lewis structures to show the electron transfer that enables these ionic compounds to be…

A:

Q: 4. Indicate with a plus sign (+) any of these processes that require energy, and a negative sign (-)…

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Q: How many total atoms are there in seven dozen molecules of nitric acid, HNO3?

A: Answer to question no. 5 (as mentioned); 1 molecule of nitric acid HNO3 contains 5 atoms ( 1 H, 1N,…

Q: The toxicity of DDT (C14H9CI5) led to a ban on its use in the United States in 1972. Determinations…

A: Molecular formula of DDT - C14H9Cl5 Molecular Mass of DDT - 354.49 g/mol Number of moles = mass of…

Q: TABLE 2: EFFECT OF TEMPERATURE ON CATALASE ACTIVITY STRENGTH OF REACTION Temperature…

A: The explanation is given below-

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A: Here from the Concentration of C4H9Cl versus time graph,  we have to determine the instantaneous…

Q: 4. Make the following conversions and include an equation for each one: (a) 32 °C to °F (b) -8.6 °F…

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Q: Does washing your hands with soap help prevent the spread of coronavirus? The structure of soap…

A: Soaps are long chain molecules formed when long chain fatty acids react with Sodium or Potassium…

Q: 3. Cobalt-60 has a half-life of 5.26 years. If 1.00 g of 6°CO were allowed to decay, how many grams…

A: 3) Given that: Half life of cobalt = 5.26 years Mass of cobalt = 1.0 g

Q: wer question numbers

A: As you have posted multiple questions in a single request, we will solve the first question for you.…

Q: What is the pH of the solution after the addition of a volume of HNO, equal to the equivalence…

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Q: 6. An unknown coordination compound was placed into a spectrometer and the absorption spectrum…

A: The absorption spectra of a coordination compound is given as follows:  We are required to find out…

Q: I Review I Constants I Periodic Table Using mass measurements, early chemists were able to determine…

A: Part A Given: volume of water = 2 kg i.e mass of water = 2 kg = 2000 g

Q: 5. Write the molecular formula for compound [1]: 6. Identify the compounds as either ionic or…

A: Compound 1 is R-OH  Where R is tert-butyl fragment  In HX , X is Bromine   Functional group: A group…

Q: 8. What type(s) of intermolecular force is (are) common to (a) Xe and CH3OH; (b) CH;OH and CH;CN;…

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Q: 1. How many grams of sucrose (C12H22011) are required to make 50mL of a 1M solution? (Remember that…

A: Mass of sucrose required to prepare 50 mL , 1 M sucrose solution = 17.12 grams We have to write the…

Q: QUESTION 2 How many moles of gas are in each flask? (Hint 1 atm =760mmHg)? OA0.15 moles O B. 107.7…

A: Given,  Volume of gas = 3.0 L Temperature = 25°C  = 25+273 = 298 K Pressure = 878 mm Hg  Conversion…

Q: 6. What is the mass of NaCl (Sodium Chloride)? Your answer 7. What is the mass of Copper Sulfate,…

A: The mass of NaCl has to be given.

Q: 2. Enthalpy: When solutions containing silver ions and chloride ions are mixed, silver chloride…

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Q: Please answer 6 Part A and B

A: Following are the appropriate answers of the given questions.

Q: Directions: Give the oxidation numbers of the underlined atoms in the following molecules and ions.…

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Q: Write a balanced chemical equation for the following reactions. 1) Calcium carbonate (CaCO3) is…

A: For balancing a chemical reaction, we need to check the number of each elements on either side of…

Q: 3. Fe(s) + CrO4² (aq) → Fe₂O3(s) + Cr₂O3(s); basic solution 4. CO32 (aq) + NH4(aq) CO(g) + N (g);…

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Q: 1. A 0.0722 M solution of a weak acid has a pH of 3.11. Calculate the Ka of this acid.. х 10-6 2. A…

A:

Q: ) Identify each of the following half-reactions as either an oxidation half-reaction or a reduction…

A: Given : We have to write complete balance redox reaction.

Q: Directions: Give the oxidation numbers of the underlined atoms in the following molecules and ions.…

A: Sum of oxidation number of each atom is equal to zero. In case of charge, it is equal to charge. Let…

Q: 2. Use Hess's Law to express the heat of reaction for Equation 1 as the appropriate algebraic sum of…

A: To use Hess's law to calculate heat of reaction for equation 1 and algebraic sum of heat of reaction…

Q: Explain the sudden jump in ionization energy for the elements in period 3 and why that jump occurs…

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Q: If I produce 0.5 liters of CO2, how many moles of C3H5 reacted?

A: Given data,Volume of CO2=0.5LThe reaction can be given as;4C3H5 + 17O2→ 12CO2 + 10H2O

Q: 3. Determine AE for a reaction in which Ag+ is reduced to Ag(s) by oxidation of Br to Br2(aq) in an…

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Q: Goögle Search Got it Remind me later 1 N2 + 3 H2 2 NH3 5. If I use 8 moles of hydrogen gas, how many…

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Q: 2. Predict and explain your prediction briefly, using resonance structures, whether…

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Q: 2. A boat has a mass of 6800kg. Its engines generate a drive force of 4100 N due to west, while…

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Q: Briefly summarize the experiment Rutherford used to develop his model. Use diagrams. Draw a picture…

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Q: . Are both of the nitrogen lone pairs delocalized (ie resonance stabilized)? Imagine that this page…

A:

Q: Balance the following equations. 1.Nitrogen monoxide reacts with ozone (trioxide) to produce…

A: The balanced chemical reaction are:i)  NO + O3 → NO2 + O2ii)    Fe2O3  + 3 Zn →3 ZnO+ 2Fe

Q: Balance the following BALANCED beside the equation. 1) N2(g) + O2(g) - 2) K₂SO4(aq) + BaCl₂(aq)…

A: As you have mentioned for answer 1 and 2 that's why I am answering 1 and 2 and the solution is given…

Q: 3. Cobalt-60 is a strong gamma emitter that has a half-life of 5.26 yr. The cobalt-60 in a…

A: Given, half life of Cobalt-60 =5.26 yr date of purchase of sample = June 2010

Q: 4. 3 Hg2+ + 2 Fe (s) → 3 Hg2+2 Fe³+ 5.2 As (s) + 3 Cl₂ (g) → 2 AsCl3 6. NaBr + Cl₂ → NaCl + Br2

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Q: 3) If 28.9g of Lithium Nitride react with excess Magnesium Carbonate, how many MOLS of Magnesium…

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Q: 1. What is the molarity of 1.28 mole of Ca(NO,), dissolved in 1.50 L of B.Molarity solution? 0 21OMA…

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Q: 3. Write down the mechanism for the following reaction and predict which of the two possible…

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Q: g. None are true B). Which is not true of acid halides and anhydrides (put all that apply)? a. Acid…

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Q: IV. Which member of each pair has the higher boiling point? Explain briefly your answers. 1.…

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Q: * In the chemical reaction 6 CO, + 6 H,0 - C,lly30, + 60,, what is the total number of moles of…

A: It's a multiple question type.   The above mentioned questions are solved below:

Q: 11:34

A: Note : As per our guidelines we are allowed to answer only first question.  Gaseous law  are  group…

Q: 2. A solution prepared by dissolving 2.25 g HA (MW = 51.0) and 4.00 g of NaA in 500 ml of solution…

A: Buffer solution :-      A buffer solution is one which resists changes in pH when small quantities…

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.