How many grams of PbBr2 will precipitate when excess NaBr solution is added to 72.0 ml of 0.791 M Pb(NO3)2 solution? Pb(NO3)2(aq) + 2NaBr(aq) PbBr2(s) + 2NANO3(aq)

Q: Determine the number of atoms in 53.0 grams of bromine, Br. (The mass of one mole of bromine is 79.9...

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Q: The equation for the dissolving of lead (II) chloride (including heat) is: PBCI2(s) + heat Pb2+ (a q...

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Q: solid

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Q: Calculate the pH of a solution that is 0.20 M HOCI and 0.88 M KOci. Kg = 3.5x10-8 pH =

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Q: A 1.740-g sample of coal contains 1.584 g C. Calculate the mass percentage of C in the coal. Mass pe...

A: Mass percentage of C = 91.03 %

Q: F ОН N. HN.

A: A functional group is an atom or group that determines the properties of a compound.

Q: Lead sulfate is a mostly insoluble salt. The equation for the minimal dissolving of this salt is: PB...

A: We will answer this question using the common ion effect.

Q: 2) Use the data below to answer the questions that follow substance milk Pickle juice Oven cleaner [...

A: Given,  [H3O+] for milk = 3.2×10^(-7)  [H3O+] for pickle juice = 2.0 × 10^(-4)  [H3O+] for oven clea...

Q: Fill in the missing values in the table below to the correct number of sig figs [H3O*] (OH"]| pH pOH...

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Q: What do you call the algebraic expressions that describe the concentration relationships that exist ...

A: An equilibrium-constant expression is an algebraic equation that describes the concentration relatio...

Q: Use the given: I. 0.02 m of glucose, II. 0.03 m of FeCl 3,  III. 0.02 m of NaCl, IV. 0.03 m of MgCl ...

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Q: What is the concentration of a glucose solution that needs to be prepared to be isotonic to match th...

A: For isotonic solutions the osmotic pressure  of both the solutions should be equal .

Q: 100.0 mL of a 0.530 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the s...

A: • The values provided in the question are:-    i) Initial concentration of KBr solution, M1 = 0.530 ...

Q: Which is a zinc ore and is used in paints, sunscreen and coins? A. Anhydrite B. Bauxite C. Cha...

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Q: Which of the following is not a characteristic of water due to hydrogen bondir Solvent Adhesion Cohe...

A: Solvent is a characteristic of water due to hydrogen bonding.

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: 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: What is the retardation factor of a pulse of dissolved benzene move through organic-rich wetland soi...

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Q: what is the equilibrium concentration of H2O

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Q: Nitric oxide, an important pollutant in air, is formed from the elements nitrogen and oxygen at high...

A: Given : Kc = 0.010

Q: Absorbance Transsmission 0.730 17.8 0.641 22.8 0.400 31.8 0.340 45.2 0.211 62.0 0.076 85.4 0.020 04....

A: Given:

Q: Describe the relationship of phase transition to the IMFs. How does the IMFs affect the phase transi...

A: Phase transition means changing in state of matter that is solid, liquid and gas.  Intermolecular fo...

Q: What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt b...

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Q: Write the condense structure of the following compound 4. 2- Butanone 5. Heptanoic Acid

A: The condensed structural formula is a shorthand representation of an organic molecule. In the conden...

Q: In an experiment, 5.25 g of H2 was added to react with 12.5 g of O2. This produced 13.5 g of H2O. Wh...

A: Given that, Mass of H2 = 5.25 g,  Molar mass = 2 g mol-1 Mass of O2 = 12.5 g, Molar mass = 32 g mol-...

Q: given a diluted acid solution that was tested by another student. They were supposed to make a solut...

A: Given: your experimental data matched the test but not the target concentration.  

Q: The following data were acquired in an iodination experiment involving acetone. Reaction times are f...

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Q: Write equations for the half-reactions that occur at the anode and cathode for the electrolysis of e...

A: For the given electrolysis problem we have to write the reaction which occur at cathode and the reac...

Q: A. В. `NH2 D. STransmittance STransm ttance * 8 2 S 8 3 8 3571.14 3354.51 3189.74 2057.18 69 SELE KR...

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Q: What mass of KO, produces 235 g of 0,?

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Q: Calculate the equilibrium concentration of all species of 0.45 M I2 (K = 5.6 × 10–12) without using ...

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Q: Select the best answer for the product of the reaction below. 1LDA 2) c.) ee a.) b.) O OH (Racemic) ...

A: The reaction given is,  

Q: What volume of 0.7777 M HNO3 is needed in order to produce 200 mL of 0.1550 M HNO3?

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Q: A compound has an empirical formula of CFBrO and a molar mass of 254.7 g/mol. 1) What is the value ...

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Q: Suppose a boil water notice is sent out advising all residents in the area to boil their water befor...

A: Given: Volume of water to be boiled = 17.0 L = 17000 mL                                         (Sin...

Q: Unlike most calculations in chemistry, colligative properties uses molality (m) NOT molarity (M). Ho...

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Q: For the following reaction at a certain temperature H₂(g) + F₂(g) ⇌ 2HF(g) the equilibrium concentra...

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Q: For the following second order reaction: 2 NO2(g) --> 2 NO (g) + 02(g) The initial concentration of ...

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Q: Write the equilibrium constant expression for this reaction: H;PO,(aq) - 3 H (aq)+PO (aq)

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Q: At a certain temperature this reaction follows first-order kinetics with a rate constant of 0.034 s ...

A: Given that, a first-order kinetics reaction is  NH4OH (aq) →NH3(aq) + H2O (aq). The rate constant of...

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

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Q: how does DCM and water extract caffeine from coffee and why would we have a low yield vs expected?

A: Caffeine is more soluble in DCM than water. 

Q: Which two sulfides can be dangerous to the human body?     A. azurite and cuprite     B. hematit...

A: sulfides can be dangerous to the human body are 

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: HO.

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Q: The chemical formula for strontium sulfide is SrS. A chemist measured the amount of strontium sulfid...

A: Mass of SrS = 6.7  g  Number of moles of SrS = ? 

Q: At a certain temperature the rate of this reaction is first order in SO, with a rate constant of 0.0...

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Q: NH2 A. CH3(CH2):CH3 В. С. D. 4000 1500 Wavenumbers em 1) 2000 Wavenumbers tom 1) 2500 2000 Waenumere...

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Q: What is the IUPAC of the following compound? ÕH

A: According to Cahn-Ingold-Prelog rule- 1) More atomic number having more priority.2) If first atom is...

Q: In order to form Ba(I03)2, 500 mL of 0.5000 M Ba(NO3)2 was mixed with 500 mL of 0.0500 M NalO3. • Ho...

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.