Chemistry concepts and calculations

A 10 M solution of compound \"B\" is measured in a 1.00 cm path length cuvette a

A 10 M solution of compound "B" is measured in a 1.00 cm path length cuvette at a wavelength of 500 nm. The percentage of the light transmitted through the cell is 38%. a)What is …

A 10 M solution of compound \"B\" is measured in a 1.00 cm path length cuvette a

A 10 M solution of compound "B" is measured in a 1.00 cm path length cuvette at a wavelength of 500 nm. The percentage of the light transmitted through the cell is 38%. a)What is …

A 10 gram piece of metal A and a 10 gram piece of metal B are placed on identica

A 10 gram piece of metal A and a 10 gram piece of metal B are placed on identical hot plates at identical settings. Metal B gets hot to the touch faster than metal A. What must be…

A 10 gram sample of material, A, was placed in water. Four grams of it B, did no

A 10 gram sample of material, A, was placed in water. Four grams of it B, did not dissolve, even after being separated and placed in a second volume of water. B could not be decom…

A 10 m3 tank contained saturated liquid water at 1 bar. First step with the fixe

A 10 m3 tank contained saturated liquid water at 1 bar. First step with the fixed volume if the tank, it is heated until the water reaches to 10 bar and the water remains as satur…

A 10 mL sample is added to a 300 mL BOD bottle. Unseeded dilution water is added

A 10 mL sample is added to a 300 mL BOD bottle. Unseeded dilution water is added to the sample bottle and the initial dissolved oxygen concentration is measured as 8.5 mg/L. After…

A 10 wt% aqueous sulfuric acid solution ( = 1.066 g/mL) flows through a 75 m lon

A 10 wt% aqueous sulfuric acid solution ( = 1.066 g/mL) flows through a 75 m long pipe with a 4 cm diameter at a rate of 94 L/min. a) What is the molarity of sulfuric acid in the …

A 10,000-gallon holding tank receives an aqueous byproduct effulent stream from

A 10,000-gallon holding tank receives an aqueous byproduct effulent stream from a continuous chemical process. The tank is well mixed and drains into a river. The tank recieves 24…

A 10-5 is performed on a culture of bacteria in order to perform viable plate co

A 10-5 is performed on a culture of bacteria in order to perform viable plate counts. From the dilution, *0.1 mL* of solution is plated on solid media, and 35 colonies of bacteria…

A 10-5 is performed on a culture of bacteria in order to perform viable plate co

A 10-5 is performed on a culture of bacteria in order to perform viable plate counts. From the dilution, *0.1 mL* of solution is plated on solid media, and 35 colonies of bacteria…

A 10-L Dewar containing liquid nitrogen (commonly abbreviated as LN2) tips over

A 10-L Dewar containing liquid nitrogen (commonly abbreviated as LN2) tips over in your car while you are transporting it to an ice cream making party. If it completely vaporizes,…

A 10-L Dewar containing liquid nitrogen (commonly abbreviated as LN2) tips over

A 10-L Dewar containing liquid nitrogen (commonly abbreviated as LN2) tips over in your car while you are transporting it to an ice cream making party. If it completely vaporizes,…

A 10-L Dewar containing liquid nitrogen (commonly abbreviated as LN2) tips over

A 10-L Dewar containing liquid nitrogen (commonly abbreviated as LN2) tips over in your car while you are transporting it to an ice cream making party. If it completely vaporizes,…

A 10-L Dewar containing liquid nitrogen (commonly abbreviated as LN2) tips over

A 10-L Dewar containing liquid nitrogen (commonly abbreviated as LN2) tips over in your car while you are transporting it to an ice cream making party. If it completely vaporizes,…

A 10-L drum of ether at 18C is open to the atmosphere (p=760 Torr) and contains

A 10-L drum of ether at 18C is open to the atmosphere (p=760 Torr) and contains 6-L of liquid. The top is sealed and the drum dented so that it now has an 8-L capacity.If the vapo…

A 10-liter container is filled with 0.1 mol of H2( g )and heated to 3400 K causi

A 10-liter container is filled with 0.1 mol of H2(g)and heated to 3400 K causing some of the H2(g)to decompose into H(g). The pressure is found to be 4.0 atm . Part A Find the par…

A 10-story office building has the floor plan of the following figure for each f

A 10-story office building has the floor plan of the following figure for each floor. A local network is to be installed that will allow attachment of a device from each office on…

A 10. g cube of copper at a temperature T_1, is placed in an insulated cup conta

A 10. g cube of copper at a temperature T_1, is placed in an insulated cup containing 10. g of water at a temperature T_2. If T_1 > T_2, which of the following is true of the s…

A 10.0 - MuF capacitor is charged so that the potential difference between its p

A 10.0 - MuF capacitor is charged so that the potential difference between its plates is 10 0 V A 5 0-MuF capacitor is similarly charged so that the potential difference between i…

A 10.0 L balloon contains helium gas at a pressure of 655 torr. what is the new

A 10.0 L balloon contains helium gas at a pressure of 655 torr. what is the new pressure of the helium gas at a volume of 1500 ml if there is no change in temperature? P1V1 = P2V2…

A 10.0 L vessel contains gas X at a pressure of 300 torr. A 4.0L vessel contains

A 10.0 L vessel contains gas X at a pressure of 300 torr. A 4.0L vessel contains gas Y at a pressure of 450 torr. The two gassesare forced into a third 3.0 L vessel which is initi…

A 10.0 g mixture of KI and KNO3 is dissolved in 250.0 mL of water. A 20.00 mL po

A 10.0 g mixture of KI and KNO3 is dissolved in 250.0 mL of water. A 20.00 mL portion of this solution is transferred to a volumetric flask and diluted to 100.0 mL with deionized …

A 10.0 g mixture of KI and KNO3 is dissolved in 250.0 mL of water. A 20.00 mL po

A 10.0 g mixture of KI and KNO3 is dissolved in 250.0 mL of water. A 20.00 mL portion of this solution is transferred to a volumetric flask and diluted to 100.0 mL with deionized …

A 10.0 g piece of ice at 0 degree C is added to 20.0 g of water at 50.0 degree C

A 10.0 g piece of ice at 0 degree C is added to 20.0 g of water at 50.0 degree C in a Dewar Flask. For water = 5980. J/mol. The heat capacity of liquid water may be considered con…

A 10.0 g sample of calcium chloride is dissolved in 100. g of water (both at 20.

A 10.0 g sample of calcium chloride is dissolved in 100. g of water (both at 20.0o C) in a light-weight calorimeter with negligible heat capacity. The final temperature is 36.0o C…

A 10.0 g sample of compound A is dissolved in 50 mL of water. Thissolution is mi

A 10.0 g sample of compound A is dissolved in 50 mL of water. Thissolution is mixed with 50 mL of diethyl ether. The mixed system separatesinto two layers of equal volume. If the …

A 10.0 g sample of compound A is dissolved in 50 mL of water. Thissolution is mi

A 10.0 g sample of compound A is dissolved in 50 mL of water. Thissolution is mixed with 50 mL of diethyl ether. The mixed system separatesinto two layers of equal volume. If the …

A 10.0 mL solution of glucose, C 6 H 12 O 6 (180.18 g/mol), with a mass of 10.48

A 10.0 mL solution of glucose, C6H12O6 (180.18 g/mol), with a mass of 10.483 g, is evaporated to dryness. If the solid white residue has a mass of 0.524 g, what is the mass/mass p…

A 10.0 ml of 0.121M H2SO4 is neutralized by 17.1 ml of KOH solution. what is the

A 10.0 ml of 0.121M H2SO4 is neutralized by 17.1 ml of KOH solution. what is the molarity of the KOH solution is ____? I solved this as 10.0ml of H2SO4 * 1L H2SO4/1000mLH2SO4*0.12…

A 10.0-mL sample of 1.0 M NaHCO 3 is titrated with 1.0 M HCl 1. What is the pH a

A 10.0-mL sample of 1.0 M NaHCO3 is titrated with 1.0 M HCl 1. What is the pH after 0 mL HCl added? 2. What is the pH after 1.0 mL HCl added? 3. What is the pH after 9.5 mL HCl ad…

A 10.00 g sample consisting of mixture of sodium chloride and potassium sulfate

A 10.00 g sample consisting of mixture of sodium chloride and potassium sulfate is dissolved in water. This aqueous mixture then reacts with excess aqueous lead(II) nitrate to for…

A 10.00 g sample containing an analyte was transferred to a 250-ml volumetric fl

A 10.00 g sample containing an analyte was transferred to a 250-ml volumetric flask and diluted to volume. When a 10.00-ml aliquot of the resulting solution was diluted to 25.00-m…

A 10.00 g sample containing an analyte was transferred to a 250-ml volumetric fl

A 10.00 g sample containing an analyte was transferred to a 250-ml volumetric flask and diluted to volume. When a 10.00-ml aliquot of the resulting solution was diluted to 25.00-m…

A 10.00 g sample of mixture containing NaCl and K_2SO_4 is dissolved in water. T

A 10.00 g sample of mixture containing NaCl and K_2SO_4 is dissolved in water. This aqueous mixture then reacts with excess Pb(NO_3)_2 (aq) to form a 21.75 g mixture of solid cont…

A 10.00 mL chloride sample required 33.65 mL of 0.01251 M AgNO_3 to reach the en

A 10.00 mL chloride sample required 33.65 mL of 0.01251 M AgNO_3 to reach the end point. a) How many moles of CI^- were present in the sample? b) What was the molarity of the CI^-…

A 10.00 mL chloride sample required 33.65 mL of 0.01251 M AgNO_3 to reach the en

A 10.00 mL chloride sample required 33.65 mL of 0.01251 M AgNO_3 to reach the end point. a) How many moles of CI^- were present in the sample? b) What was the molarity of the CI^-…

A 10.00 mL portion of a solution of a weak monoprotic (one H^+) acid HA was titr

A 10.00 mL portion of a solution of a weak monoprotic (one H^+) acid HA was titrated with 0.1894 M NaOH. The results of the titration are tabulated below. (a) Write the balanced c…

A 10.00 mL sample of 0.30 M NH 3 is titrated with 0.45 M HNO 3 . Which statement

A 10.00 mL sample of 0.30 M NH3 is titrated with 0.45 M HNO3. Which statement is true when 6.67 mL of titrant has been added to the analyte? A. It is after the equivalence point, …

A 10.00-mL aliquot of 0.2000 M mercaptoacetic acid ( H SCH 2 CO 2 H ) is titrate

   A 10.00-mL aliquot of 0.2000 M mercaptoacetic acid (HSCH2CO2H) is titrated with 0.1200 M KOH. Calculate the pH a)after the addition of 0.00 mL KOH. b)at the 1st equivalence poi…

A 10.000 gm sample of a mixture containing aluminum chloride was titrated with a

A 10.000 gm sample of a mixture containing aluminum chloride was titrated with a solution of silver nitrate. The silver nitrate solution was prepared by adding 10.000 gm of silver…

A 10.00g sample of cu is heated to 450.0k and dropped into a calorimeter contain

A 10.00g sample of cu is heated to 450.0k and dropped into a calorimeter containing 100.0g of water at 298.0k. The temperature of the water rose to 299.4k. What is the specific he…

A 10.00mL sample of saturated Ca(IO3)2 is titrated with 0.0210M Na2S2O3 solution

A 10.00mL sample of saturated Ca(IO3)2 is titrated with 0.0210M Na2S2O3 solution in the presence of excess KI and H2SO4. The reaction occurs according to equation: IO3- + 6 S2O3^2…

A 10.00mL solution of .600M NH3 is titrated with .200M HCl. Calculate the pH aft

A 10.00mL solution of .600M NH3 is titrated with .200M HCl. Calculate the pH after adding 10.0mL of HCl. I used an ICE diagram to solve for equilibrium amounts and got .004mol of …

A 10.00mL solution of .600M NH3 is titrated with .200M HCl. Calculate the pH aft

A 10.00mL solution of .600M NH3 is titrated with .200M HCl. Calculate the pH after adding 10.0mL of HCl. I used an ICE diagram to solve for equilibrium amounts and got .004mol of …

A 10.g cube of copper at a temperature T1 is placed in an insulated cup containi

A 10.g cube of copper at a temperature T1 is placed in an insulated cup containing 10.g of water at a temperature T2. If T1>T2, which of the following is true of the system whe…

A 100 MHz 1_H NMR spectrum of methyl crotonate (sec structure below) was run. a)

A 100 MHz 1_H NMR spectrum of methyl crotonate (sec structure below) was run. a) Use a tree diagram to predict what the signal of H_a would look like in this spectrum. Sketch and …

A 100 g of ice (solid water) at 0 degrees Celsius melted to water at 75.5 degree

A 100 g of ice (solid water) at 0 degrees Celsius melted to water at 75.5 degrees Celsius. If all the heat came from propane (C3H8) combustion, how many grams of propane (molar ma…

A 100 g piece of metal, initially at 85 degree C is put (without heat loss or ga

A 100 g piece of metal, initially at 85 degree C is put (without heat loss or gain) into a cup with 50 g of water, initially at 22 degree C. Which of the following is true (select…

A 100 liter solution contains 0.50 M acetic acid and 0.38 M potassium acetate If

A 100 liter solution contains 0.50 M acetic acid and 0.38 M potassium acetate If 25.0 mL of water are added to this system, indicate whether the following statements are true or f…

A 100 mL sample of .18 M HClO4 is titrated with .27 M LiOH. Determine the pH of

A 100 mL sample of .18 M HClO4 is titrated with .27 M LiOH. Determine the pH of the solution before the addition of any LiOH. a) A 100 mL sample of .18 M HClO4 is titrated with .2…