n extra-strength aspirin tablet contains 0.250 grams of the active ingredient, acetylsalicylic acid. Aspirin strength used to be measured in grains If 1 grain = 50 mg of the active ingredient, how many grains of the active ingredient are in 1 tablet?

Q: How do I find the scientific notation of 82,000,000 s if the number of signtificant figures is 4?

A: The number given is 82,000,000 s And number of significant figures required in final answer is 4.

Q: A specific brand of gourmet chocolate candy contains 7.00 g of dietary fat in each  22.7-g piece.…

A: Convert the unit amount of candy in the box from lb to g:

Q: When elemental iron corrodes it combines with oxygen in the air to ultimately form red brown…

A: (a) The mass of the iron nail will increase after the rusting process.  Rusting involves a…

Q: A student converts grams to milligrams by multiplying by the conversion factor 1g /1000mg. Is the…

A:

Q: a sample of sodium carbonate Na2CO3 is being dried. after 1 hour of drying the mass of the sample…

A: Weight of sample before drying =0.337 g Weight of sample after drying = 0.333 g Change in mass =…

Q: is it possible for the calculated answer from a mulitplication or divison problem to contain more…

A: The significant number of answer in multiplication and division is determined by the number having…

Q: You record the following in your lab book: a liquid is thick and has a density of 4.58 g/mL. Which…

A: Given data, A liquid is thick and has a density of 4.58 g/mL. Which data is qualitative and…

Q: tration of the insulin stock solution is 400. units/500. mL. How many units of insulin per hour is…

A: A unit of insulin is the most basic measure of insulin, U-100 is the most common concentration of…

Q: The density of vanadium metal is 6.11 g/mL. What is the volume in milliliters of a cube of vanadium…

A:

Q: Calculate the density of a 3.00 * 102g object that has avolume of 50.0 mL.

A: Density is given by the ratio of mass of the substance to that of the volume.

Q: The mass of Erlenmeyer flask used in chemistry laboratory is 35.6 g. What is the equivalent of it in…

A:

Q: A vial containing 200 mg hydrocortisone sodium succinate powder for injection is to be reconstituted…

A: GIVEN: Amount of hydrocortisone sodium succinate powder for injection = 200 mg Volume of injection =…

Q: a. Round off the number 0.00099957 to three significant figures. b. Calculate the arithmetic average…

A: a) Given : Number = 0.00099957

Q: chemist prepares a solution of sodium carbonate (Na, CO, by weighing out 62.1 g of sodium carbonate…

A: We have given that Mass of Na2CO3 = 62.1 grams Volume of volumetric flask = 300mL  i.e.…

Q: (1) If a 32.0 g sample of the liquid ethylcyclohexane has a volume of 40.6 mL, what is the density…

A: Density is the mass of a material substance per unit volume. Given: Mass of ethyl cyclohexane =…

Q: Glycerol is a syrupy liquid often used in cosmetics and soaps. A 3.25L sample of pure glycerol has a…

A:

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A: Amount of a reactant reacted can be calculated using the amount of product formed using…

Q: A salt water solution is found to have a mass of 110.65 grams. If 1.35 grams of sodium chloride was…

A: Solution is made up of solute and solvent.

Q: A cube of an unknown metal measures 0.375 cm on one side.  The mass of the cube is 0.474 g.  Which…

A: Given : length of metal cube = 0.375 cm  And mass of cube = 0.474 g

Q: A chemistry student weighs out 0.0896 g of sulfurous acid (H,SO,, a diprotic acid, into a 250. mL…

A:

Q: When you perform the following operations, how many significant figures should your answer have?…

A: Given : 39.20 dm +  10.000 m  =?

Q: A mouthwash is 21.6% ethanol by mass. If each botte contains 0.358 pt of mouthwash with density of…

A: The mass of ethanol in each bottle is calculated as,

Q: An ibuprofen suspension for infants contains 100mg / 5.0mL. The recommended dose is 10mg / kg body…

A: Conversion:1 pound = 0.4535 g2.20 lb = 1 kg18 lb = 8.16 kg

Q: In an experiment a student recovers 6.43 g of dry nickel after dissolving a 5.14 g nickel coin in…

A: Given that,  Weight of dry nickel recovered = 6.43 g Weight of Nickel coin dissolved in nitric acid…

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A:

Q: A chemistry student weighs out 0.154 g of sulfurous acid (H, SO,), a diprotic acid, into a 250. mL…

A: Given: mass of sulfurous acid (H2SO3) = 0.154 g Volume of sulfurous acid  solution = 250 mL…

Q: 9. You are working in a specials manufacturing unit and you are preparing an order of Zinc and…

A: In the given question, weight of one cream tube = 27.5 g Total number of cream tubes to be packed =…

Q: How manny aspirin tables can be made from 100.0g of asprine, if each tablet contains 5.00 grains of…

A: Numbers of aspirin tablets that can be made from 100.0g of aspirin are to be calculated, if each…

Q: A graduated cylinder contains 147 mLmL of water. A 13.0-gg piece of iron and a 22.0-gg piece of lead…

A: Given: Volume of water in a graduated cylinder = 147 mL Mass of iron added = 13.0 g Mass of lead…

Q: Chlorate hydrate a sedative and sleep-inducing drug, is available as a solution labeled…

A: To express different physical quantities, there are various units used such as mass, volume, time…

Q: Density is an intensive physical property. Look-up the meaning of an intensive property of matter…

A: Given - Density of 25.0 mL water = 1.001 g/mL. We have to find the density of 50.0 mL of water.

Q: A specific brand of gourmet chocolate candy contains 7.00 g of dietary fat in each 22.7-g piece. How…

A: Given,  Dietary Fat = 7.00 g Mass of piece = 22.7 g Mass of candy = 3.00 lb

Q: A pharmacists measures out three amount of 200 mL and two amount of 150 mL from a stock bottle of 2…

A: Given : Total volume of stock solution = 2 L.                          Total mass of a drug = 5…

Q: A child is prescribed a syrup produced by crushing ten carvedilol 25 mg tablets and mixing to a…

A: Given: The number of carvedilol tablets crushed = 10 The mass of each tablet = 25 mg The volume of…

Q: The mass of a beaker is 5.333 g. After 5.00 mL of a concentated hydrochloric acid solution is pipet…

A: Density is physical quantity that can be determined with the help of mass and volume of the given…

Q: An aqueous sodium nitrate (NANO3) solution must be created for an experiment. If 50.00 mL of a 0.150…

A:

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A: The molecular weights: Chlorine gas is,Cl2  = 70.9 g/mol Sodium bromide, NaBr = 102.9 g/mol. Sodium…

Q: A box of pencils at the store contains 38 pencils . A carton of pencils contains 36 boxes. Each…

A: Given mass of one pencil is 2.47 g. One box of pencil contains 38 pencils. Once carton of pencil…

Q: The mass of 10 mL of a liquid is 10.112 g. What is the density if the liquid is water? [Select ]…

A:

Q: An object has a volume of 689 mL and a density of 0.89 g/mL. What is the mass, in grams, of the…

A:

Q: When chlorine gas is bubbled into a solution of sodium bromide, the sodium bromide reacts to give…

A: Law of mass action says that mass of any substance can neither be created nor be destroyed in a…

Q: If a 1.25 pint bottle of soda contains 10 mL of caramel color, how many liters of caramel color are…

A: Given : Volume of caramel colour in 1 soda bottle = 10 mL Number of flats in truck = 20  Number of…

Q: Given the following data, calculate the percentage of salt in the original mixture.  Include the %…

A: Mass percentage is the individual percentage of any one component of the mixture present in 100 % of…

Q: How many significant figures does 31.03 g + 12 mg has?

A: First convert 12mg into g by multipy 10-3 So 12mg=0.012g 31.03+0.012= 31.042 So minimum 2…

Q: chloral hydrate a sedative and sleep inducing drug is available as a solution labeled 10.0…

A: The amount of chloral hydrate can be converted into gr/ml with the help of given values as follows:

Q: Write an equality for the following medication in stock: 0.35 g of Lanoxin per 1 tablet of Lanoxin…

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: A mouthwash is 21.5 % ethanol by mass. A mouthwash may contain over 20% ethanol. If each bottle…

A: Mouthwash % ethanol by mass = 21.5 % = 21.5 g Each bottle contains 1.38 pt of mouthwash with a…

Q: Low-density lipoprotein (LDL), sometimes called “bad cholesterol,” is also measured in a routine…

A: Given  Mass of LDL sample         = 0.380 gram  Volume of LDL sample     = 0.362 mL  density   = ?

Q: A student pipetted 25.00 mL of a 1.65 M solution of potassium phc a volumetric flask and then filled…

A: Initial volume of given solution is 25.00 mL and concentration is 1.65 M. The solution is diluted to…

Q: A vineyard has 145 acres of Chardonnay grapes. A soil supplement requires 9.50g for every square…

A: Acre and square meter are some common units of area whereas grams, kilograms and milligrams are…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.