7. If a certain hydrogen peroxide solution is 20- volume hydrogen peroxide, it contains: 1. 3% Hydrogen Peroxide II. 6% Hydrogen Peroxide III. 10 mL Oxygen IV. 20 mL Oxygen

Q: 100.0 mL of a 0.500 M solution of KBr is diluted to 500.0 mL. What is the new concentration of the…

A: The given problem relates to stock dilution, so we can use the below relation to calculate the final…

Q: If the 10-min average concentration is 10 µg/m°, according to the power law relationship, the 1-hr…

A:

Q: Purified water contains not more than 10 ppm of total solids. Express this concentration as a…

A: The concentration of the solutes particles in the solution can be expressed in many ways such as…

Q: A certain solution has a hydrogen ion concentration of  0.0000221  moles per liter. Write this…

A: Scientific notation It is a useful way to represent very large numbers or very small numbers. In…

Q: A sample (50 mL) of a bottled water was added to a 100 mL volumetric flask and then diluted to the…

A: The dilution takes place twice. First the original sample (50 mL) is diluted to 100 mL stock…

Q: A 6.0 M solution of HCI is diluted to 1.0 M. How many milliliters of the 6.0 M solution would be…

A: Given: Initial molarity of HCl solution = 6.0 M Final molarity of HCl solution = 1.0 M Final volume…

Q: What volume (in mL) of a 0.98 M HNO3 solution must be diluted to prepare 0.98 L of 0.28 M HNO3?…

A: Given : Concentration of stock solution of HNO3 = 0.98 M Concentration of final diluted HNO3…

Q: A 12.0-mL portion of 3.00 M stock solution is to be diluted to 0.200 M. What will be the final…

A: Given that,V1 = 12 mL = 0.012 L M1 = 3M = 3 mol/L M2 = 0.200 M V2 = __ M1V1 = M2V2

Q: How many gallons of a 40% acid solution must be added to a 30% acid solution to make 50 gallons that…

A: Recall the following formula to calculate concentration mixture of two acids        ViSi + VfSf…

Q: What volume of 18.0 M sulfuric acid is required to make a 2.50 L of a 2.40 M sulfuric acid solution?…

A:

Q: Determine the number of moles of AgNO3 in 25.0 ml of 0.600 M AgNO3. Show solution.

A: Given,  The number of moles of AgNO3 present in 25.0 mL of 0.600 M AgNO3 solution is:

Q: For an experiment 33.5mL solution of potassium permanganate with a 1.45 M concentration is needed.…

A:

Q: Determine the Gas Densities of the following. Please show the step by step solution or it will be a…

A: Given  Molecule = CO2 Pressure ( P ) = 1 atm  Temperature ( T )  =  30 ℃…

Q: When 624 grams of PbCl2(s) are placed in 2 L of water, what mass (in grams) of PbCl2 will dissolve?…

A: PbCl2 will dissolve in water as Pb2+ and 2Cl-. So the solubility product would be,…

Q: It is important that the correct solution is used for rinsing volumetric glassware. Discuss how your…

A: In laboratory work, it is important to rinse all the glassware before use. These volumetric…

Q: 10.0 mL of a 0.300 M sucrose solution was diluted to 200. mL. The concentration of the new solution…

A: Concentration of the new solution can be determined using the dilution expression,

Q: A student wants 35.0 mL of a 2.19% sugar water solution. They only have a 17.0% stock solution. How…

A: Let 'y' milliliters of the 17.0% stock solution is used to make the 2.19% sugar water solution. 17%…

Q: lution 01 0.0500 M NaOH Volumes: Initial 45.16 mL 42.93 mL Final 21.38 mL 18.78 mL Used Average Used…

A: The values as calculated Initial 45.16ml 42.93ml Final 21.38ml 18.78ml Used 23.78ml 24.15ml…

Q: You need to make a 1:5 dilution of a solution. You need 25 ml of the diluted solution. How much…

A: Given:dilution ratio= 1:5volume of diluted  solution = 25ml

Q: Trail 1 volume vinegar, mL 4.00 mL g HC2H3O2 in sample taken 60.10 % HC2H3O2 (W/V) ?

A: Since % (w/V) is defined as  % (w/V)  = mass of solute taken in g X 100 / volume of solution taken…

Q: 12.0−mL portion of 7.00 M stock solution is to be diluted to 0.300 M. What will be the final volume…

A: Molarity is defined as total number of solute present in 1000 ml of solution .   For neutralisation…

Q: Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by…

A:

Q: How many mL of 0.25 M of SDS is required to be poured in a 750 mL so that its final concentration is…

A: From given data  Initial concentration M1= 0.25 M Final concentration M2= 0.024 M  Final volume V2 =…

Q: 7. How many milliliters of 13.1 M H,SO, are needed to la. 0.22 mL prepare 600.0 mL of 0.10 M H,SO,?…

A: Given: Initial concentration of H2SO4 = 13.1 M Final concentration of H2SO4 = 0.10 M Final volume of…

Q: Multiple Choice Each of the numbered items or incomplete statements is followed by answers or by…

A: Given in following question give 3 many  give answer true or false

Q: IMNACI solution using an available 2.86 M solution? ODilute 23.9 mL of the 2.86 Msolution to a final…

A: solution - from the dilution law; M1×V1 = M2×V2Where ;M1 = initial cincentration = 2.86 mol/LV1 =…

Q: 20.0 mL of concentrated nitric acid (16M HNO3) is diluted to 600. mL. What  is the molarity

A:

Q: How many moles of LiBr are present in 375 mL of a 0.175 M LiBr solution?

A: Given :-  molarity of LiBr solution = 0.175 M  volume of solution = 375 mL  To calculate :-  no.of…

Q: What volume of 3.00 M CH3NH2 solution is needed to provide 0.370 mol of CH3NH2?

A: It is given that, molarity=3.00 M, this molarity can also be written as, molarity=3.00 mol/L number…

Q: Look at the diagram below of a ten-fold serial dilution. Serial Dilution 9 mL stock solution 1 mL…

A: Serial dilution: It is a sequence of dilution of a substance in the solution and the dilution factor…

Q: boiling stones added to the 400 mL boiling water bath

A: The boiling point of water is constant, it does not change on the addition of stones.

Q: ration of a diluted H2SO4 solution that has a volume of 0.50 L using 2 mL of a 5.50 M stock…

A: In chemical laboratories, Strong chemical solutions are not used as such. They are diluted to lower…

Q: What would the dilution factor for Sample 1 be if 500 µL of the diluted sample from question 5 were…

A: Total volume of the sample after dilution (Vf) = 500 µL + 500 µL = 1000 µL Initial volume (Vi) = 500…

Q: Find the final concentration of ethanol as a percent (v/v) when 30 mL of ethanol 50 % (v/v), 60 mL…

A:

Q: How many milliliters of 8.64 M hydrobromic acid solution should be used to prepare 5.00 L of 0.100 M…

A:

Q: A forensic chemist prepares 250.0 mL of a 0.514 M solution using 45.0 mL of a stock solution.  What…

A:

Q: How to prepare 250 ml of 98% H2So4 solution with a density of 1.98 g / ml? (H2So4: 98 g / mol

A: Volume of solution is 250 mL Density of solution is 1.98 g/mL Thus we calcuate mass of solution from…

Q: How many milliliters of 9.0 M H2SO4 are needed to prepare 500. mL of 0.25 M H2SO4?

A: This question is based on Dilution equation. The formula for the dilution equation is as follows:…

Q: What mass of MCl is needed to make 3000g of 30% solution? (MW: H= 1 , Cl= 35)

A:

Q: Principles of volumentric analysis Instruction: Read and analyze each problem carefully. Show your…

A: Normality (N) of a solution is defined as the number of gram equivalents of solute dissolved per…

Q: What two ionic compounds are dissolved in the filtrate after the suction filtration step What two…

A: The above reaction is an example of double displacement reaction and a well known procedure for…

Q: How much 0.045 M HCl solution can be made by diluting 250 mL of 12 M HCl?

A: First we will calculate the number of moles of HCl.Number of moles = Molarity × VolumeNumber of…

Q: 43) How many moles of CaCl2 are in 250 mL of a 3.0 M of CaCl2 solution? A) 750 moles B) 1.3 moles C)…

A:

Q: Average volume NaOH used (mL) Average volume NaOH used (L) Moles NaOH used (from avg volume) Moles…

A: The equation involved in this reaction is as follows. NaOH+CH3COOH→CH3COONa+H2O That means NaOH and…

Q: 10) What volume of 0.20 M HCl can be prepared from 300. mL of 0.50 M HC1? (Hint: Dilution formula)

A:

Q: 11.2 mM (millimolar) solution was made using 0.198 L of a 294 mM solutioon what is the final volume…

A: Given; Initially; concentration of the solution (M1) = 294 mM Volume of the solution (V1) = 0.198 L…

Q: A student wants 83.0 mL of a 11.5% sugar water solution. They only have a 17.0% stock solution. How…

A: Given  Percentage of Sugar stock stock solution  = 17%  Volume of Target sucrose solution ( V2 ) =…

Q: What size volumetric flask would you use to create a 0.50 M solution using 10.00 g of CaBr2? 100 ml…

A: Concentration=0.50M  Weight=10g Molar mass of CaBr2=200g/mol Volume=?

Q: How many milliliters of water should be added to 3.3 mL of 18.2 MH 2SO4 in order to prepare 0.10 M…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: What volume of a 0.300 M LİOH is required to neutralize 48.0 mL of a 0.200 M H2SO4 solution? A 16.0…

A: Molarity of LiOH = 0.300M Volume of LiOH = ? Molarity of H2SO4 = 0.200M Volume of H2SO4 = 48.0 ml