Question

Calculate the final concentration of each of the following.

A 53.5 mL sample of an 8.8 % (m/v) KBr solution is diluted with water so that the final volume is 239.0 mL.

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Science
Chemistry

Physical Chemistry

Related Chemistry Q&A

Find answers to questions asked by students like you.

Q: Identify the correct base/conjugate acid pair in this equation: NH4+ + H2O -> NH3 + H3O+ A. H2O...

A: conjugate base is formed when an acid donates a proton. conjugate acid is formed when a base accepts...

Q: Calculate the number of atoms of sulfur in 2.52 g of sulfur scientific notation

A: Number of atoms = moles of S X Avogadro's number  where Avogadro's number = 6.022 X 1023  and moles ...

Q: What is a heat capacity?

A: Heat capacity is a physical property of matter, defined as the amount of heat to be supplied to a gi...

Q: Which of the following gas samples would have the largest volume, if all samples are at the same tem...

A: The gas sample which have largest volume at constant temperature and pressure can be identify by usi...

Q: Balance the equation and then write total and net ionic equations for: Zn(NO3)2(aq) + NaC2H3O2(aq) -...

A:   Balanced Equation is: Zn(NO3)2 + 2NaC2H3O2 -->Zn(C2H3O2)2 + 2NaNO3 Total inoic equation is: Zn2...

Q: When the following equation is balanced properly under acidic conditions, what are the coefficients ...

A: Separating the equation into two half reactions-oxidation and reduction half reaction.

Q: 3. A molecule absorbs IR at a wavenumber of 1720 cm-1. Which functional group could account for this...

A: The functional groups, their frequencies and intensities have been expressed in the table as follows...

Q: Draw the Lewis dot structure for AlCl3.

A: Since the number of valence electron in Al is 3 and Cl is 7  Hence Al electrons will make 1 bond wit...

Q: Determine whether each of the following statements about the thermodynamic functions are True or Fal...

A: The given statements are identified as true or false as shown below,   1) The spontaneity of a chemi...

Q: 250.0 mg of copper(II) sulfate pentahydrate (CuSO4•5H2O, 249.69 g/mol) was dissolved in water to mak...

A: Since mass of CuSO4•5H2O used = 250 mg = 0.25 g              (since 1 g = 1000 mg) Hence moles of Cu...

Q: To complete the following statement: To speed up the reaction, a catalyst... A) increases the activa...

A: The main role of catalyst is to bring a short way for any certain reaction to take place. Therefore,...

Q: Calculate the volume in milliliters of a  1.7 M nickel(II) chloride solution that contains  200.m...

A: Since the moles of NiCl2 present in the solution is given = 200 mmol = 0.2 mol Also the moles can be...

Q: Why can strong halide acids (HCl, HBr, HI) not be used in place of sulfuric acid? Briefly explain wh...

A: Since in the halide acids we have halide ions like Cl- , Br- and I-which can be oxidised to Cl2 Br2 ...

Q: Solid magnesium fluoride and solid magnesium carbonate are in equilibrium with a solution containing...

A: Stoichiometry is the method which is applied to determine the mass of substance existing in the give...

Q: Consider the following reaction at equilibrium. What effect will decreasing the pressure of the reac...

A:                        

Q: In demonstrations of strong and weak electrolytes and nonelectrolytes, a lightbulb apparatus that sh...

A: Acetic acid in water acts as a weak acid that ionizes to acetate ions and hydrogen ions.  These ions...

Q: 3. Hydrochloric acid reacts with aluminum metal to produce hydrogen gas. 2AI (s) + 6HCI (aq) → 2AICI...

A: (a)Given, Mass of Al = 12.8g. Moles of H2 gas produced can be calculated as follows:

Q: Draw the Lewis dot structure of these 2 elements: 1. Hydrogen 2. Carbon

A: Please find below the Lewis dot structure of hydorgen element and Hydrogen gas (H2) Since in H we h...

Q: What is An for the following equation in relating Ke toK 2 50 2 0 2g)2 50 30

A: The Kp and Kc are related to each other via the equation shown below.

Q: How many unpaired electrons would you expect for manganese in KMnO4? Is this a paramagnetic or diama...

A: Diamagnetic:  When atoms or ions with all electrons are paired their magnetic field effectively canc...

Q: A 4.70-g sample of aluminum pellets (specific heat capacity = 0.89 J °C- g) and a 10.00-g sample of ...

A: Since the heat lost by both metals will be used in increasing the temperature of the water  Q = mCΔT...

Q: If you have a 100. Watt lamp, about how many photons are emitted per second, assuming the majority o...

A: Wavelength, λ = 549 nm = 549 × 10-9 m As we know that, E = h × c/ λ So,

Q: What is the temperature of 0.210 moles of an ideal gas whose pressure is 42.0 atm and volume is 0.12...

A: Click to see the answer

Q: When the following skeletal equation is balanced under basic conditions, what are the coefficients o...

A: Click to see the answer

Q: Write the molecular, ionic and net ionic equation for: a piece of magnesium metal is dropped into a ...

A: Given: A piece of magnesium metal is dropped into a solution of zinc nitrate.

Q: Calculate the mole fraction of the total lons in an aqueous solution prepared by dissolving 0.400 mo...

A: The ionic equation can be written as: The concept is based upon the mole fraction. The term mole fr...

Q: Charles' Law A gas occupies 0.67 L at 350 K. What temperature is required to reduce the volume by 45...

A: We will use Charles Law for this question.  In case of Ideal Gas, volume of any gas  is directly pro...

Q: 1.00 mol of a diatomic ideal gas in a piston-cylinder initially occupies 8.0 L at 300 Kelvin and con...

A: Given, T1 = 300 K V1 = 8 L T2 = 390 K n = 1 mol

Q: Consider the reaction: 2 HCl (aq)  +  Ba(OH)2 (aq)   -->   2 H2O (l)  +  BaCl2 (aq)     ΔH = −118...

A: The question is based on  enthalpy change of neutralisation. when 1 mol of H+ ions react with 1 mol ...

Q: Under the required basic conditions, the Suzuki coupling is not efficient when the organic electroph...

A: In the Suzuki Couplings general scheme, the coupling of the organoboron specimen with the halide ove...

Q: For a second-order reaction, the half-life is equal to a) t1/2=0.693/k b) t1/2=k/0.693. c) t1/2=1/k[...

A: For the second order reaction, the half life is                  

Q: A city's water supply is contaminated with a toxin of 0.36mg/L. Fortunately, this toxin decomposes t...

A: Given Data: The concentration is 0.36 mg/L. The rate constant is 27 day-1.  

Q: A chemist needs to neutralize a 2.6 M solution of HCl.  If there are 420 mL of solution, what volume...

A: Given information: Concentration of HCl solution = 2.6 M  Volume of HCl solution = 420 mL Concentra...

Q: When the following half reaction is balanced under acidic conditions, what are the coefficients of t...

A: Click to see the answer

Q: I need help on my study problems. I was wondering if you could help with 6. Thanks!

A: The time needed for the decaying process of half of the original quantity of reacting species is cat...

Q: Use standard reduction potentials to calculate the equilibrium constant for the reaction: Pb2*(aq) +...

A: The equilibrium constant (Keq) and standard Gibbs free energy (ΔGo) are related to each other via th...

Q: The air we breathe contains approximately 21.0 mol% oxygen. The average person breathes 0.50 L of ai...

A: Interpretation- Partial pressure of oxygen. Number of moles of oxygen. Number of moles of oxygen. R...

Q: A hot air balloon is filled with 1.15×106 L1.15×106 L of an ideal gas on a cool morning (11 ∘C).11 ∘...

A:                      

Q: The question is attached :)

A: Diluting solutions having a specific concentration never changes the solute's moles present in that ...

Q: If you start with acetyl-CoA labeled with 14C in the methyl-carbon, where does the label end up in m...

A: The label ends up in the carbon atom next to the carboxyl end of malonyl CoA. The reaction pathway b...

Q: Wine goes bad soon after opening because the ethanol  CH3CH2OH  in it reacts with oxygen gas  O2 ...

A: The balanced reaction taking place is given by  CH3CH2OH + O2 -----> CH3COOH + H2O  Since from th...

Q: A solution is prepared at 25 °C that is initially 0.47 Min dimethylamine ((CH,) NH), a weak base wit...

A: pKb = -log Kb pKb = -log (5.4 x 10-4) pKb = 3.2676 now according to hasselbalch hendersen equation p...

Q: How many seconds are required to deposit 0.220 grams of aluminum metal from a solution that contains...

A: The reaction taking place is  Al3+ + 3 e- ----> Al (s)  Hence moles of electron reacting to form ...

Q: Given the following electrochemical cell, calculate the potential for the cell in which the concentr...

A: Click to see the answer

Q: Complete these Brønsted-Lowry reactions. reaction 1: H,POĀ + H+= reaction 2: H,POT + OH¯=

A: Bronsted-Lowry concept based upon “Proton transfer”. According to Bronsted-Lowry concept: An acid is...

Q: Consider the following reaction: CusE s) O 21= Cur s 50 2) A reaction mixture initially contains CuS...

A: This reaction contains pure solids which are not considered when writing  equilibrium constant expre...

Q: The lattice energy of potassium iodide is the energy required for the following reaction. KI(s) → K+...

A: Click to see the answer

Q: Calculate the molar mass for Hydrogen gas using the formula PV/RT where P=718.9 V= 36.0 R=0.821 T= 2...

A: Ideal Gas Equation is : PV = nRT where,  P = Pressure of the gas V = Volume of the gas R = Universal...

Q: See Periodic Table Based on the thermodynamic properties provided for water, determine the energy ch...

A: The phase changes involved in the given process is:

Q: A 104.2 mL sample of 1.00 M NaOH is mixed with 52.1 ml of 1.00 MH2SO, in a large Styrofoam coffee cu...

A: Please find below the reaction taking place  2 NaOH (aq) + H2SO4 (aq) -----> Na2SO4 (aq) + 2 H2O ...