The antibiotic gramicidin A can transport Nations into a certain cell at the rate of 5.0 x 107 Nations/channels. Calculate the time in seconds to transport enough Nations to increase its concentration by 7.70 x 103 M in a cell whose intracellular volume is 1.50 × 10-¹0 mL. x 10 S (Enter your answer in scientific notation.)

In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average concentration of 1.90 ppm. (1 ppm stands for 1 part per million which means in one million volumes of air—choose whatever volume unit you like—there would be one volume of carbon monoxide.) An average human takes inhales 0.50 L per breath and takes 20 breaths per minute. Carbon monoxide in the atmosphere has a density of 1.2 grams per liter. 2. How many liters of carbon monoxide will a person breathe in Utah County in 8 hours?

In 2014 (the last year for which I can find data), Utah County had a carbon monoxide (CO) average concentration of 1.90 ppm. (1 ppm stands for 1 part per million which means in one million volumes of air—choose whatever volume unit you like—there would be one volume of carbon monoxide.) An average human takes inhales 0.50 L per breath and takes 20 breaths per minute. Carbon monoxide in the atmosphere has a density of 1.2 grams per liter. 3. How many milligrams of carbon monoxide would a person in Utah County inhale in an 8 hours?

An alcoholic fermentation was conducted in the laboratory using 280 g glucose as substrate with a working volume of 2,000 mL. Assuming that the sugar is completely fermented to ethanol. Calculate the volume of ethyl alcohol in liters produced. The density of ethyl alcohol is 0.79 g/mL and its concentration or percent ethyl alcohol by volume produced assuming that no volume changed during fermentation.

Acetaldehyde (C₂H4O), an oxidation product of ethanol, is found in every type of wine. On average, red wine contains 30.0 mg of acetaldehyde per liter. What is the molarity of acetaldehyde in a bottle of wine (750. mL)? Do not include units or use scientific notation on your final answer (on the blank).

A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 5.78 mg of zinc oxalate into a 350. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's zinc oxalate solution. Be sure your answer has the correct number of significant digits.

In the laboratory, a student adds 14.0 g of silver nitrate to a 375 mL volumetric flask and adds water to the mark on the neck of the flask. Calculate the concentration (in mol/L) of silver nitrate, the silver ion and the nitrate ion in the solution.

The antibiotic gramicidin A can transport Na+ ions into a certain cell at the rate of 5.0 × 107 Na+ ions/channel · s. Calculate the time in seconds to transport enough Na+ ions to increase its concentration by 8.10 × 10−3 M in a cell whose intracellular volume is 1.60 × 10−10 mL. (Answer should be in scientific notation).

If a person has a blood glucose level of 106 mg / 100. mL, a level that can cause brain damage, what is the total mass (in grams) of glucose in 4.91 L of blood?  g glucose

A chemist prepares a solution of zinc oxalate (ZnC₂04) by measuring out 1.08 mg of zinc oxalate into a 150. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's zinc oxalate solution. Round your answer to 3 significant digits. 0 mol/L x10 X