Special Types of IV Calculations_page-0015

210 mg glucose per 100 ml blood. Avg body contains 11 pints, how many grams glucose. 1 pt = 473.176473 ml

A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the mark with distilled water. The student then, pipetted 10 mL of this new solution into a 50.00 mL volumetric flask and diluted it to the mark with water. What is the dilution factor of the final solution?   25X   100X   125X   5X   50X

Blood alcohol content is a measure of alcohol in the blood as a percentage. It is calculated in grams per 100 mL of blood, so a BAC of 0.08 means your blood is 0.08% alcohol by volume. what is the total mass of alcohol (in grams) that is present for the same adult male whose total blood volume is 5.6L?

Does it make a difference if you use a volumetric flask vs a beaker vs a graduated cylinder to make a solution?

You are on a road trip. Your car travels at an average speed of 65 miles/hr, with an average gas use of 17.8 km/L.       1 liter = 1,000 mL = 0.264 gallons. 1 km = 0.621 miles.  1) If your trip takes 2.6 hours, determine how many total liters and gallons of gasoline are used on this trip. 2) How many mL (milliliters) of gasoline are used by the car each minute during this trip? 3) The density of the gasoline used on your trip is 0.755 g/mL. What is the total mass in grams, and in ounces of the gasoline used on your trip?

The concentration of PSA (prostate-specific antigen) in the blood is sometimes used as a screening test for possible prostate cancer in men. The value is normally reported as the number of nanograms of PSA per milliliter of blood. A PSA concentration of 1.7 ng/mL1.7 ng/mL is considered low. Express that value in terms of the units shown.   PSA=         g/L PSA=        kg/m3 PSA=        mg/L

Earth's oceans have an average depth of 3800 m, a total area of 3.63 x 10 km², and an average concentration of dissolved gold of 5.8 × 10. If a recent $987.00 troy oz what is the value of gold in the oceans? (I troy oz 31.1 g) Round your answer to 2 significant figures. Note: Reference the SI prefixes and Unit conversions for derived SI units tables for additional information. price of gold was 0

TUMS is a popular remedy for acid indigestion. A typical TUMS tablet contains calcium carbonate plus some inert substances. When ingested, it reacts with the gastric juice (hydrochloric acid) in the stomach to give off carbon dioxide gas. When a 1.371 g tablet reacted with 40.00 mL of hydrochloric acid (density 1.140 ), carbon dioxide gas was given off, and the resulting solution weighed 46.699 g. Calculate the number of liters of carbon dioxide gas ml released if its density is 1.81 Be sure your answer has the correct number of significant digits. Save For Later Submit A Check ©2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center 82 F PType here to search 199+

. A sample of an ethanol-water solution has a volume of 52.5 cm³ and a mass of 49.6 g. What is the percentage of ethanol (by mass) in the solution? (Assume that there is no change in volume when the pure compounds are mixed.) The density of ethanol is 0.789 g/cm³ and that of water is 0.998 g/cm³. Percentage of ethanol = b. Alcoholic beverages are rated in proof, which is a measure of the relative amount of ethanol in the beverage. Pure ethanol is exactly 200 proof, a solution that is 50% ethanol by volume is exactly 100 proof. What is the proof of the given ethanol-water solution? proof Submit Answer % [References] Try Another Version 10 item attempts remaining

A chemist prepares a solution of iron(III) bromide (FeBr,) by weighing out 152.1 g of iron(III) bromide into a 250. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in g/dL of the chemist's iron(III) bromide solution. Be sure your answer has the correct number of significant digits. x10 dL ?

A chemist prepares a solution of iron(III) bromide (FeBr,) by weighing out 45.48 g of iron(III) bromide into a 350. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in g/dL of the chemist's iron(III) bromide solution. Round your answer to 3 significant digits. alo x10 dL Ar ?

A student is asked to make up a 16% sodium chloride solution. She makes the solution by weighing an empty beaker (mass of 98.56g). Sodium chloride is added to the beaker. The mass of the beaker and sodium chloride is 114.71g. Lastly the student added 84mL of distilled water to the beaker. Reweighing the beaker she finds that the mass of the beaker, sodium chloride, and distilled water is 196. 14 g. What is the weight percentage of sodium chloride in this solution?

Ch. Ex. 63c - Significant Figures Be sure to answer all parts. Enter your answer in scientific notation. Carry out the following calculation, paying special attention to significant figures, rounding, and units: (1.77 × 10 mol/L *(3.1 × 10 mol/L) (7.01 × 10 molL)(2.51 × 102 mol/L ) x 10 L/mol

What is the density of a solution with a mass of 116.1 ± 0.2 g and a volume of 96.3 ± 0.4 mL?

A prescription requires an 0.67 mL injection of a 1:100 solution of a drug. The pharmacy only carries a 1:250 solution. What volume (in mL) injection would be required to maintain the same drug dosage? Give your answer rounded to two digits to the right of the decimal point. Do not enter the unit.

You have a stock 0.100 M solution of KMnO44 and I00-mL volumetric flasks. What volumes of the stock solution will you have to pipet into the flask to prepare a solution of 1.00 x 10−3−3 M KMnO44 solutions? Express answer in 3 significant figures, without unit.

Solution 1 is diluted by combining 6 mL of Solution 1 with 64 mL of Solution 2. What is the dilution of solution 1?   Report your answer in standard decimal notation rounded to two decimal places. For example, 4 mL added to 16 mL would be a 0.20 dilution. Include trailing zeros if necessary so your answer has two decimal places.

Given the following data, calculate the percentage of salt in the original mixture.  Include the % unit and two decimal places in your answer. Mass of mixture = 5.426 g Mass of 400 mL beaker = 137.521 g Mass of 400 mL beaker and sand = 139.477 g Mass of 250 mL beaker = 105.691 g Mass of boiling chips = 0.463 g Mass of 250 mL beaker + boiling chips + salt = 108.328 g

the concentration of a standard polyphosphate solution is 1 milligram per milliliter. if 7 milliliters of the stock solution are added to a 1-liter sample, what is the polyphosphate dose in pounds per million gallons?

part a) A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of citric acid solution into a micropicnometer. The student reweighed the micropicnometer and found the mass of the citric acid solution and micropicnometer to be 2.525g.  Calculate the density of the citric acid solution in g/ml. part b) A student measured the mass of an empty micropicnometer to be 2.000g. A student places 0.500mL of citric acid solution into a micropicnometer. The student reweighed the micropicnometer and found the mass of the citric acid solution and micropicnometer to be 2.525g.    A student titrates 0.101mL of citric acid solution using the standardized 0.1M solution (use the exact concentration calculated from the previous titration problem). The sample required 0.819mL of NaOH solution to reach the end point.   Given the following chemical equation.   NaOH   +  H3C6H5O7 →  Na+ +   H2O  +   C6H5O73-   Given the above information. Calculate the mass of citric…

8. Carry out the following conversions: (a) 1.42 lightyears to miles (a light-year is an astronomical measure of distance—the distance traveled by light in a year, or 365 days; the speed of light is 3.00x108 m/s), (b) 32.4 yd to centimeters, (c) 3.0 3x1010 cm/s to ft/s. With solution

Gold occurs in the ocean in a range of concentrations of 0.1 to 2 mg gold per ton of seawater. Near one costal city the gold concentration in the ocean is 0.44 mg/ton. How many tons of seawater have to be processed to obtain 1.0 troy once of gold if the recovery is 64% successful? (The troy ounce, 31.1 g, is the standard "ounce" in the gold trade.) i ton If gold can be sold for $1356.96 per troy ounce, what is the breakeven point in the dollar-cost per ton of processed seawater for extracting gold from the ocean at this location? i Attempts: 0 of 15 used Submit Answer Save for Later étv S MacBook Air DII DD 80 888 F10 F6 F7 F8 F9 F4 F5 F2 F3