The questions is as follows: The World Health Organization drinking water standard for arsenic is 10.0 micrograms/liter. Los Angeles watter is 5 ppb (parts per billion) arsenic. Convert the WHO arsenic standard to ppb and determine whether Los Angeles water is above or below the standard. (Assume that the density of the water is 1.00 g/cm^3)

Q: Lindsay A chemist makes 530. mL of calcium bromide (CaBr,) working solution by adding distilled…

A: A stock solution is a concentrated solution that will be diluted to some lower concentration for…

Q: A chemistry student weighs out 0.139 g of lactic acid (HC,H,O,) into a 250. mL volumetric flask and…

A: Mass of lactic acid = 0.139 g Volume of solution = 250 mL or 0.250 L Molar mass of lactic acid =…

Q: The recommended maintenance dose of beclomethasone dipropionate (BECLOVENT ), an aerosolized…

A: Following information given in the question -   Recommended maintenance dose of beclomethasone…

Q: A chemistry student weighs out 0.101 g of hypobromous acid (HBRO) into a 250. mL volumetric flask…

A: Given: Mass of hypobromous acid = 0.101 g Volume of volmetric flask   = 250 mL Molarity of NaOH…

Q: Convert the experimental glucose concentration (provided in the table below) from mM (millimolar) to…

A:

Q: An analytical chemist weighs out 0.111 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given data: Mass of diprotic acid = 0.111 g, Total volume of diprotic acid = 250 mL, Concentration…

Q: The danger point in breathing sulfur dioxide for humans is 2620 μg/m3. How many ppm is this value?

A:

Q: An analytical chemist weighs out 0.101g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Neutralization reaction : Equivalent amount of acid reacts with a equivalent amount of base This…

Q: A chemistry student weighs out 0.0918 g of hypobromous acid (HBrO) into a 250. mL volumietric flask…

A:

Q: 2. Each part per million (ppm) concentration of CO2 in the atmosphere is the equivalent to a global…

A: 2) According to the question, 1 ppm of CO2 in the atmosphere = 2.13 billion metric tons. Change in…

Q: You want to compare a patient's measured calcium ion concentration to the normal calcium ion…

A: Given that normal range of calcium concentration in blood is 4.5-5.5 mEq/L But result shows a…

Q: A student weighed a wet 10-mL graduated cylinder. The cylinder contained at least 0.5 mL of water…

A: Given that : A student weighed a wet 10-mL graduated cylinder. The cylinder contained at least 0.5…

Q: Convert 32.5% to parts per thousand (ppt).

A: ppt = 10 x percentage

Q: In the standardization of an acid and base solution, sodium hydroxide (99.5% by mass) was used. A…

A: Given: initial burette reading=5.5mL final burette reading=28mL Weight of the sample=0.12g To find:…

Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A: Answer is given below

Q: If you had to prepare a 0.200 M HCl solution from 17.0 mL of a 2.60 M HCl stock solution, to what…

A:

Q: Suppose you want to make a 0.75 M solution of copper (II) sulfate in a 250 mL volumetric flask. What…

A: To calculate mass of CuSo4 required to make 0.75M solution in 250 ml.

Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A:

Q: Potassium cyanide is a toxic substance, and the median lethal dose depends on the mass of the person…

A: Solution :       The molarity of the solution is defined as the number of moles of solute dissolved…

Q: An aqueous solution of sodium hydroxide, NaOH , is made by dissolving 15.6 grams of sodium hydroxide…

A: The question is based on the concept of solutions. molarity is a method of expressing concentration…

Q: If we have a salt solution with a density of 1.2g/cm^3 and a metal bar with a density of 8.96g/cm^3,…

A: Given : density of salt solution = 1.2 g/cm3  Density of metal = 8.96 g/cm3  And mass of both = 100…

Q: If the concentration of a fluoride in a city is drinking water were 0.800 per parts per million how…

A: Given : The concentration of fluoride in parts per million i.e ppm = 0.800 ppm  Since there is no…

Q: Let's say I am asked how to prepare 200 mL of 0.9 M NaOH solution, starting from 5.01 M stock…

A:

Q: If you made a solution of 1.5 ppm of Pb in 1.25 mL of nitric acid, from 0.25 mL of a stock solution.…

A: Given information: Concentration of solution (M1) = 1.5 ppm Volume of solution (V1) = 1.25 mL Volume…

Q: You decide it is time to clean your pool since summer is quickly approaching. Your pool maintenance…

A: Chlorine concentration = 3.92 x 10-5 M

Q: The volume of seawater on Earth is about 3.3 x 108 mi3. If seawater is 3.5% sodium chloride by mass…

A:

Q: A patient is to receive 10 mEq of potassium gluconate (MW = 234) four times a day for 3 days. If the…

A: Solution -

Q: A chemist makes 710.mL of mercury(I) chloride Hg2Cl2 working solution by adding distilled water to…

A:

Q: [OH-] = 1.0 x 10-7 Express the concentration to two significant figures and include the appropriate…

A: Given-> [OH^-] = 1.0 × 10^-7 M   If [H3O^+] is 1.0 × 10^-7 M => then it is neutral .

Q: The temperature of your water was 22.4 degrees Celsius. The volume of hydrogen collected was 35.3…

A:

Q: An analytical chemist weighs out 0.280g of an unknown diprotic acid into a 250mL volumetric flask…

A: As per the data given in the question,Weight of unknown diprotic acid = 0.280 gVolume of solution…

Q: researcher has added 2.06 g of the salt sodium nitrate, NaNO3, to a cylinder containing water. The…

A: Diameter=2 inchRadiusr=1 inchDepthh=4 inch

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The mass of water in the pool is calculated as,

Q: 2 Determine the volume of 36% Hydrochloric acid (SG = 1.18) and fresh water required to prepare: a)…

A: Given that -  36% HCl has specific gravity, SG of = 1.18  28% HCl has specific gravity of 1.14, with…

Q: A chemist adds 195.0mL of a 1.5M barium acetate (Ba(C2H3O2)2) solution to a reaction flask.…

A: Molar mass of barium acetate = 255.43 g/mol

Q: A chemistry student weighs out 0.0690 g of hypobromous acid (HBrO) into a 250. mL volumetric flask…

A: Given: Mass of HBrO = 0.0690 g. And concentration of NaOH = 0.1700 M

Q: A chemistry student needs 5.00 g of acetic acid for an experiment. She has available 250. g of a…

A: Given,  250 g of a 15.8% w/w solution of acetic acid in ethanol. And 5.00 g of acetic acid is needed…

Q: You plan to prepare 500 mL of 0.01 M NaCl solution, and you have 5.00 L of a 1.00 M stock solution…

A: Dilution of the solution:When we dilute a concentrated solution with pure water, the mole of solute…

Q: Answer in scientific notation with the appropriate number of significant figures.  For a laboratory…

A: Using molarity equation, we will calculate the volume of the required solution.

Q: The "normal" concentration of lead in blood is 0.40 parts per million (meaning, for example, 0.40 g…

A:

Q: 2.5740 grams of 97% Copper sulfate pentahydrate dissolved in water up to 1-L volume. A. Parts per…

A: Solution - According to the question - Given - w/w % = ( mass solute / mass solution ) x 100 putting…

Q: The prescription for an oral solution reads "1 tablespoon ac & hs x 10d". What is the minimum volume…

A: Given: The prescription for an oral solution reads "1 tablespoon ac & hs x 10d"

Q: A chemistry student needs 35.00 g of butanoic acid for an experiment. He has available 1.5 kg of a…

A:

Q: A patient is receiving 500 mL of an IV solution. How long will it take to infuse the patient (give…

A: Given : Total volume of dose = 500 mL Flow rate of dose = 35 drops/min And drop factor = 14 drops/mL…

Q: In an alternate reality, the following salinity vs. density information was collected and summarized…

A: Given - Salinity (g/mL) Density (g/mL) 0.00 0.983 20.00 0.998 50.00 1.020 100.00 1.057…

Q: The concentration of Tylenol, (CaHNO2), in a patient's plasma is found to be 2.99 x 10 M after the…

A:

Q: Assuming volumes are additive, how much water (in mL) should be added to 20 mL of a 2.48 M solution…

A: Provided initial volume (V1)=20 ml Initial molarity (M1)=2.48M Final molarity (M2)=0.250M Number of…

Q: If a total of 125 mL of a 10% solution is diluted to 500 mL in a 500-mL volumetric flask, what is…

A: 1.) As the initial 10% solution is diluted , so we would use dilution law to calculate concentration…

Q: A chemistry student weighs out 0.130 g of phosphoric acid (H, PO,), a triprotic acid, into a 250. mL…

A:

Q: A chemistry student weighs out 0.129 g of lactic acid (HC,H,0,) into a 250. mL volumetric flask and…

A: Since Lactic acid is a weak monoprotic acid  Hence it will react with NaOH as  NaOH + HC3H5O3…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.