Assume that a milliliter of water contains 20 drops. How long, in hours, will it take you to count the number of drops of water in 1.0 gal of water at a counting rate of 10 drops/s?

Q: 1. Calculate the number of nanograms in 1.545x10 Megagrams. 2. Calculate the number of Teraliters in…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

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

A: Given : Mass of water in swimming pool = 8.45 X 104 gallons  Mass percent of chlorine = 6.00 %  And…

Q: A student poured 4.6 mL of water into a test tube. She marked the level of the water on the test…

A: A) option is correct

Q: A student needs to determine density of a liquid. The student determines mass of an empty flask to…

A:

Q: The liquid substances mercury (density = 13.6 g/mL), water(1.00 g/mL), and cyclohexane (0.778 g/mL)…

A: Given: Density of mercury is 13.6 g/mL Density of water is 1.00 g/mL Density of cyclohexane is 0.778…

Q: A solution is labeled "(1.810x10^1) % sucrose by mass". If an experiment requires (7.79x10^1) g of…

A:

Q: An insulin solution is given to a patient suffering from hyperglycemia at the rate of 20.0 mL/hr.…

A: The rate of any process is amount of the substance flow per unit time.  The unit time may be in sec,…

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 9.37×10−3 m9.37×10−3 m to the equivalent length in nanometers.

A:

Q: A pharmacy technician is asked to dispense 250ml of solution which contains 0.05g/5ml of drug. How…

A: Mass can be measured in different units such as grams (g), kilogram (kg), milligrams (mg)  Some…

Q: The stockroom has provided you with a 1.60 M stock solution of NaCl. What volume of this stock…

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

Q: Calculate the volume, in mL, of 10.0 g of a saline solution that has a density of 1.05 g/mL.

A: To calculate volume from mass and density, we have to follow the following relationship:…

Q: A prescription for amoxicillin comes in an oral suspension that is 25.0 mg per 1 mL. A patient is…

A: A numerical problem based on clinical chemistry, which is to be accomplished.

Q: A chemist must dilute  40.6mL  of  105.μM  aqueous silver(II) oxide  AgO  solution until the…

A: Given: Initial concentration (original solution), M1 = 105 μM The initial volume (original…

Q: Determine the kind of relationship that exists between salinity and chlorinity • Equation 3.4…

A: The equation is, Salinity = 1.80655 × Chlorinity So, Salinity/chlorinity = 1.80655

Q: An adult should have no more than 23032303 mg of sodium per day. What is this limit in kilograms…

A: Given: Mass of sodium = 23032303 mg   Conversion of mass of sodium from mg to kg: 1 mg = 10-6 kg

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

A: The values are given as follows:

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1.00…

A: Swimming pools are disinfected with small amounts of chlorine and the accepted concentration is…

Q: The white blood cell concentration in normal blood is approximately 12,000 cells/cubic mm. How many…

A:

Q: A certain antihistamine is often prescribed for allergies. A typical dose for a 100​-pound person is…

A: Given  For a 100 pound person  Dosage = 20 mg/6hrs

Q: A prescription requires an 4.82 mL injection of a 1:100 solution of a drug. The pharmacy only…

A:

Q: A chemist must dilute 54.1 mL of 6.21 M aqueous potassium iodide (KI) solution until the…

A:

Q: Dilution A chemist must dilute 75.7 ml of 2.28 mM aqueous copper(II) fluoride (CuF ,2) solution…

A: To solve this problem we will use the equation  M1V1 = M2V2  Here M is the concentration and V is…

Q: How many milliliters are in 15.1 dL ? Express your answer numerically in milliliters.

A: To convert 15.1 dL into mL dL= deci litres mL= milli litres I dL = 100 mL

Q: The standard definition of a quart is equal to 947 mL. Calculate the percent error of a student's…

A: Given  Actual value of quart=947 mL The measured value of quart=938 mL Percent error has to be…

Q: If you dissolve 24.4 g of NaCl in 251 g of water and generate a solution that has a density of 1.10…

A: Molarity of a solution is given by,

Q: The normal creatinine levels in adults are 0.6-1.2 mg/dL. If a 5.0-mL sample contains 45 μg of…

A: The normal creatinine levels in adults are 0.6-1.2 mg/dL. If a 5.0-mL sample contains 45 μg of…

Q: The solubility of benzoic acid in water at room temperature is 0.54 g per 100 mL of water.  If 4.95…

A: Crystals are formed by a saturated solution and by the solute which is present in extra amount and…

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: GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new…

A: Given that , The volume of blood sample ,             = 2uL             =2 x 10-6 L

Q: If you determined the average concentration of vitamin C in the fruit juice to be 0.63 mg/mL, how…

A:

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: B- A solution containing 15.0% sodium hydroxide by mass in water has a density of (1.4 g/ml) what…

A:

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

A:

Q: A pharmacy technician is asked to prepare an antibiotic IV solution that will contain 500.0 mg of…

A: Interpretation: A pharmacy technician is asked to prepare an antibiotic IV solution that will…

Q: Write out at least 5 relevant conversion factors as fractions that you'll need to convert need to…

A: Relevant conversion factors as fractions that is needed to convert units of gallons to units of…

Q: 105.5-g sample of a metal was placed into water in a graduated cylinder, and it completely…

A: Density The density of a substance is the ratio of the mass of the substance to the volume of the…

Q: A bottle of champagne is 15 %% alcohol by volume. If there is 760 mLmL of champagne in the bottle,…

A: A bottle of champagne is 15% alcohol by volume and we have given 760mL of champagne bottle  15%…

Q: Calculate the Normality of Hcl of a solution that contains 45 g in 325 ml of water, knowing that the…

A:

Q: What is the normality of a solution that contains 50 g of sulfuric acid dissolved in 15 L?

A: Given, mass of sulfuric acid = 50 g Volume = 15 L

Q: Blood alcohol content is a measure of alcohol in the blood as a percentage. It is calculated in…

A: A BAC of 0.08% means that 0.08 g of alcohol is present in 100 mL of blood  So the required…

Q: A chemist must dilute 99.9 mL of 161. mM aqueous silver perchlorate (AgClO,) solution until the…

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

Q: 2. Suppose that you have a micropipet which delivers 100 drops per cubic centimeter, and a solution…

A: Since you have asked multiple questions, we will answer only first question for you. In order to get…

Q: In normal whole blood there are about 5.4 x 10^9 red cells per milliliter. The volume of a red cell…

A: Given:- In normal whole blood there are about 5.4 x 10^9 red cells per milliliter. The volume of a…

Q: if 1 pint of blood weigh 1lb , calculate 900ml of blood .

A: Given: Mass of 1 pint of blood = 1 lb. And volume of blood = 900 mL.

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 glucose solution is 3.25% glucose by mass and has a density of 1.03 g/ml. What mass of glucose is…

A:

Q: You are given 250 mL solution and need to adjust the drip rate for a patient. Before you begin you…

A:

Q: A patient needs to receive 85 grams of glucose every 12 hours. What volume of a 5.0% (m/v) glucose…

A: Given: Mass of glucose required every 12 hours = 85 g. And the %(m/v) of the solution = 5.0 %

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.