A farmer recently dug a new well for his property. He sends a 14.0 mL sample of the well water to the EPA to be tested for the presence of cadmium. What is the maximum amount of CdCd (in μgμg) that can be present in this 14.0 mL sample based on its MCL? The maximum contaminant level (MCL) set by the EPA of cadmium in drinking water is 0.0050 mg/L. And that is 5 ppb.

Q: Concentration of DDT (molar mass= 354.49 g/mol) in groundwater sample is found to be 0.030 mg/250.0…

A: We have to predict the concentration in mmol/L.

Q: A student has 500.0 mL of a 0.1111 M aqueous solution of NazCO3 to use in an experiment. She…

A:

Q: In a titration experiment, 27.7 mL of 0.719 M HCOOH neutralizes 29.2 mL of Ba(OH)₂. What is the…

A: Volume of HCOOH, V1 = 27.7 mLConcertation of HCOOH, M1 = 0.719 MVolume of Ba(OH)2, V2 = 29.2…

Q: What volume, in mL, of 0.748 M LiOH(aq) is needed to COMPLETELY NEUTRALIZE 126. mL of 1.19 M…

A: Here we are asked to calculate the volume, in mL, of 0.748 M LiOH(aq)needed to completely Neutralize…

Q: The total volume of 0.25 M H2SO4 used was 27.9 mL. Calculate what volume of 5 M ammonia solution…

A: Molarity of H2SO4 = 0.25 MMolarity of NH3 = 5 M

Q: Suppose a student needs to determine the concentration of a NaOH solution. He performed a…

A: First, we need to calculate the number of moles of benzoic acid used in the titration. The number of…

Q: You want to analyze a cider that contains 5.6 g / L of lactic acid. If you have two NaOH solutions,…

A: The molar mass of lactic acid =90.08 g/mol Mass of lactic acid = 5.6 g/L

Q: Sodium hydroxide is a substance that causes severe burns. It is used in many educational laboratory…

A: Contact with very high concentrations of sodium hydroxide can cause severe burns to the eyes, skin,…

Q: A group of students working in a chemistry lab is planning a procedure to neutralize 25.0mL of 2.0 M…

A: Acid-base titration: Titration is a method to determine the concentration of unknown acid by using…

Q: What volume, in mL, of 1.34 M HCI(aq) is needed to COMPLETELY NEUTRALIZE 175. mL of 1.69 М…

A:

Q: You measure 7.47.4 mL of a 50%50% NaOHsolution by weight (its density is 1.53 g mL−1)and dilute it…

A:

Q: During a titration involving 1.852 g of KHP powder, the amount of NaOH in a buret started at a…

A: No. Of moles = Molarity x Volume in L   Volume of NaOH dispensed = Final Burette reading -Initial…

Q: Part C You need to prepare a 2.30  M � solution of potassium bromide (molar mass of potassium…

A: The objective of the question is to determine the mass of potassium bromide required to prepare a…

Q: The water in a certain pool has a concentration of 3.38 mg/L of Fe^3+ ions. Express this value as…

A: Given  Concentration of Fe3+ = 3.38 mg/L Concentration in parts per billion =?

Q: An industrial facility discharges a waste that contains 130 mg/L hydrochloric acid at a rate of 12…

A: Given: 1) Discharge waste contains 130 mg/L of HCl. 2) Rate of discharge is 12 L/min.

Q: Initial buret reading Final buret reading 2.17 mL 22.17 mL An antacid tablet containing Mg(OH),(s)…

A: Given : concentration of HNO3 used = 0.100 Mvolume of HNO3 used=(22.17-2.17)mL=  20.00 mL= 0.020 L…

Q: Match each description of a chemical procedure from Lab 6 (Chemicals in Everyday Life) with its…

A: acidic and basic nature of chemicals

Q: The EPA's secondary standards for contaminants that may cause cosmetic or aesthetic effects in…

A: Calculate the concentration of contaminant using the formula given below.Convert grams to milligrams

Q: Consider 0.350 g of an antacid tablet.  Suppose 41.36 mL of 0.1246 M HCl is added to the crushed…

A: Millimoles= concentration *volume (in ml) Millimoles of NaOH = 0.1172*12.78               =1.4978…

Q: The concentration of SO42– ions in a 45.0 mL sample of seawater is determined by adding a solution…

A: Given information: Mass of barium sulfate = 0.315 g Volume of sample = 45.0 mL or 0.045 L

Q: A student titrated a 20.00 mL sample of hydrochloric acid. The titrant was a solution of sodium…

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Q: A chemistry student weighs out 0.361 g of ascorbic acid (H₂C H₂O), a diprotic acid, into a 250. ml.…

A:

Q: 150.0 mL of 0.500 mol/L sodium hydroxide, NaOH (aq), is required to titrate 125.0 mL of hydrochloric…

A: This is strong acid HCl - strong base NaOH titration. And give neutralization reactionNaOH(aq) +…

Q: In a lab, 0.80 L of water is added to 50.0 mL of 17.4 M stock solution of humic acid (C9H9NO6). What…

A: To calculate the concentration of resulting solution after dilution with water, we would use…

Q: 'm trying to calculate the amount of sucrose in Cola. volume=50mL mass = 54.2060 g Density=…

A: Number of moles of sucrose is equal to the mass of sucrose divided by molar mass of sucrose.

Q: How many milliliters of 0.094 M NaOH are needed to completely neutralize 26.6 mL of 0.210 M…

A: Number of moles = Molarity x Volume (L) From the balance equation it is evident that 2 moles of NaOH…

Q: Calculate the maximum volume in mL of 0.19 M HCl that a tablet containing 1,031 mg CaCO3 would be…

A: The equation for the given neutralization reaction is as follows. CaCO3+2HCl→CaCl2+CO2+H2O That…

Q: onsider a 0.227 M aqueous solution of sodium hydroxide, NaOH.   A. How many grams of NaOH are…

A: #A: Given the molarity of NaOH = 0.227 M Required conversion factor: 0.227 mol NaOH = 1 L

Q: A chemistry student weighs out 0.197 g of lactic acid (HC3H503) into a 250 mL. volumetric flask and…

A: When lactic acid is titrated with sodium hydroxide solution, then following balanced Chemical…

Q: A student carries out a titration to find the concentration of 65.0 ml of HCl using 0.250 M NaOH.…

A: For the titration process, the relationship between initial and final concentrations and volumes of…

Q: Use some or all the data below to calculate the concentration of acetic acid (in M) in the Walmart…

A: The titration of acetic acid (vinegar) by NaOH takes place as,…

Q: The solubility of the hydroxide of a hypothetical metal, Me, in water is 84.08 g MeOH per 47.18 mL…

A: Given,  Solubility of MeOH in water = 84.08 g/47.18 mL  Calculate amount of water in mL needed to…

Q: Your fridge at home probably has some tasty beverages in it. To keep things “simple,” let’s just say…

A: In this question, we have to find out the correct answer of given problem by the help of THE…

Q: A chemist samples a river's water to measure the amount of fertilizer runoff from the area farms. In…

A: Given , mass of Nitrate (solute) = 562 microgram  = 562 X 10-6 gram (As , 1 microgram = 10-6 gram)…

Q: What do you understand about the manufacture of

A: Addition of solvent is called dilution , in dilution process no.of moles of solute is constant…

Q: lifeguard spills 160.43 mL of 0.877 M hydrochloric acid (also known as muriatic acid) solution while…

A: Balanced chemical equation is2 HCl(aq) + Na2CO3(s) -> H2O(l) + CO2(g) + 2 NaCl(aq)

Q: An analytical chemist weighs out 0.087 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: The average density of sea water is 1.02 g/mL. If sea water contains an average of 260 ppm of…

A: Given - Density of sea water = 1.02 g/mL             Concentration of sulfate = 260 ppm…

Q: You are standardizing a NaOH solution and find that it requires 21.71mL of NaOH to neutralize 1.589g…

A:

Q: Baking soda (sodium bicarbonate, NaHCO3) reacts with acids in foods to form carbonic acid (H2CO3),…

A: Baking soda or sodium bicarbonate reacts with lactic acid to give sodium salt of lactic acid along…

Q: The town of Andover obtains drinking water from three sources that together produce up to 6.81 × 107…

A:

Q: What was the concentration of the original KOH stock solution?

A:

Q: The maximum contaminant level of cyanide (CN) in drinking water as set by the the Environmental…

A: The maximum contamination level of the cyanide in the drinking water is 0.00020 g.L-1. This…

Q: A student is standardizing a sodium hydroxide solution.  He used 23.22 mL of NaOH to neutralize…

A:

Q: Consider the titration of 25.00 mL of Sprite with 0.053 M NaOH. Using the following data, determine…

A: