Bill's recipe for onion soup calls for 4.80 lb of thinly sliced onions. If an onion has an average mass of 140 g , how many onions does Bill need?

Q: The mass of a proton is 1.67*10^-27kg. What is the mass of a proton in gigagrams?

A: Kilogram is a small unit while gigagrams 1kg=10-6gigagram So 1.67×10-27kg have 1.67×10-27×10-6…

Q: Elaine needs 5.55g of sea salt. She has 4.0 L of water from the Atlantic Ocean. The density of this…

A: Given information: Mass of sea water = 5.55 g Density of water = 1.027 g/mL

Q: A doctor orders a dosage of 0.330mg of thyroxin. If the medicine comes in 60μg pills, how many pills…

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

Q: A chemist synthesized 0.510 kg of aspirin in the lab. If the normal dose of aspirin is 325mg…

A: Aspirin is also known as acetylsalicylic acid. It is used as a medicine to reduce fever, pain, etc.…

Q: What is the mass of 6.00cm3 of mercury, density = 13.5939 g/cm3

A: Given : density of mercury = 13.5939 g/cm3  And volume of mercury = 6.00 cm3

Q: K The material labeled K contains elements that do not conduct heat or electricity well The…

A: We have to name the elements from periodic table from given choices of options having similar…

Q: A barrel of oil is exactly 42 gal. How many liters of oil are in a barrel?

A:

Q: Keftab (cephalexin) is prescribed for an elderly patient who weighs 80 kilograms. The order is 10…

A: Mass of patient = 80.0kg  Prescribed dose = 10mg/kg

Q: The price of 1 pound (lb) of potatoes is $1.75. If all the potatoes sold today at the store bring in…

A: 1 pound =0.454kg  1pound = 1.75 $

Q: An Astronaut on the moon places a package on a scale and finds its weight to be 12 N What would the…

A: Weight of package on moon = 12  N

Q: Consider two 50.0 mL volumes of water, one at 20.0 °C and the other at 100.0 °C. What are the masses…

A:

Q: What is the mass of 19.8 cm3of gasoline (density 0.680 g/cm3)?

A: Given : volume of gasoline = 19.8 cm3  And density of gasoline = 0.680 g/cm3

Q: A chemist synthesized 0.510 kg of aspirin in the lab. If the normal dose of aspirin is two 325-mg…

A: The given data contains, mass =0.510 kg

Q: two grains of a drug is equivalent to:  a. 129.6mg  b. 127.4 mg  c. 132.1 mg  d. 200 mg  e. 500 mg

A: Interpretation - Two grains of a drug is equivalent to , which one is correct -  a. 129.6mg  b.…

Q: The liquid ethylcyclohexane has a density of 2.5 g/mL at 20 °C. If a 3.2 kilogram sample of this…

A: The density determination is the mass of substance is divided by the volume of substance.

Q: a room contains 4.23 x 10^24 molecules of oxygen. what is the mass of oxygen in the room?

A: Number of mole of substance is calculated by dividing mass of substance (m) to molar mass (M) of it…

Q: Q2. The mass of an atom of oxygen is a) 16g b) 32g c) 2.66 x 1023 g d) 2.66 x 1023

A:

Q: 1.Brass is an alloy of copper and zinc. Varying the mass per-centages of the two metals produces…

A: As you have asked multiple questions we have answered your 1st question. If you want the answer to a…

Q: tablets

A:

Q: You have three objects of varying shapes and sizes: Object 1 is a rectangular block of tin. Object 2…

A:

Q: A sphere of pure iron metalcontains 9.57 x 1024Fe atoms. What is the radius of the sphere in…

A:

Q: a teaspoon of a liquid has a mass of 7.39 g and a volume of 5.48 mL how many teaspoons would be in…

A:

Q: (a) Three spheres of equal size are composed of aluminum(density = 2.70 g/cm3), silver (1density =…

A: a. We are given the following densities as: Density of alluminium = 2.7 g/cm3 Density of nickel =…

Q: Estefanla wants to make 17.63 pints of Kool-Ald for her upcoming event. Unfortunately, she can only…

A: Given 1 pint = 0.473176 L We know 1L = 1000 mL   Hence 1 pint = 0.473176 L x 1000 mL/ L or, 1 pint =…

Q: Brass is an alloy of copper and zinc. Varying the mass per-centages of the two metals produces…

A: Given:  The zinc by mass percentage=34%-37% Mass of yellow zinc=185g Mass of copper=46.5g

Q: Identify the elements present in the following molecules(see Table 1.1).

A: (a) H2O Elements present : H and O.       (b) CH4 Elements present : C and H.

Q: 17. The element magnesium (Mg) can react with oxygen gas (O2) in the air to produce magnesium oxide,…

A: When Mg react with O2  it gives out MgO whic is white powder. The reaction for this changes is: 2Mg…

Q: If a large marshmallow has a volume of 2.00 in3 and density of 0.242 g/cm3, how much would it weigh…

A: Convert the unit of volume:

Q: What is the mass in carrots of a diamond measuring 2.0 ml

A: The mass in carats of a diamond measuring 2.0 ml is to be calculated. Given: Volume of diamond = 2.0…

Q: Which one of the following would have approximately the same mass as 40.0 cm³ of lead (d = 11.3…

A: A question about the relationship between mass and density, which is to be answered.

Q: Discuss one of the Philosophers and his contributions to science history;Give at least 10 sentece

A: We all have learn about one of the greatest and very attractive philosopher and his name was…

Q: A dime weighs 2.5 g. What is the dollar value of 1 kg of dimes?

A: Given:- 1 dime has weight=> 2.5 gm Total weight of dimes=1 Kg = 1000 gm Number of dimes in 1kg=…

Q: a stick of butter weighs 4 ounces. how many grams are in one stick

A:

Q: A nutrition table lists apples with a potassium content of 4600 mg/pound. Assume an average apple is…

A: According to the given data, Mass of an average apple = 75.0 g Because, 454 g = 1 poundMass of an…

Q: Green cube: mass = 37.3g, s=2.20cm How much water would your object displace ml. Will your object…

A: Density=MassVolume If density of Object is greater than water, the Object will Sink and Vice-versa.

Q: -- - p I You are to give ampicillin 25 mg/kg to a child with a mass of 66 lb. If stock on hand is…

A:

Q: 2. What is the chemical nature of a chocolate chip cookie? A. Element B. Compound C. Homogeneous…

A: By definition, an element is a pure substance that consists of identical atoms and it cannot be…

Q: On average, Earth’s crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink…

A:

Q: If one Gold Galleon coin from Harry Potter weighs 12.75g and you have a bag of Gold Galleons that…

A: Weight of 1 coin = 12.75g Total weight = 224g

Q: A sample of lead ore has a density of 8.80 g/ml. It is composed of two lead compunds: lead oxide,…

A: Given that the sample if lead ore has density of 8.80 g/ml. And it is composed of lead oxide(density…

Q: The U.S. quarter (25 cents) has a mass of 5.67 g and is about 1.55 mm thick. How many quarters are…

A: Given: Height of stack = 1.75 ft. And thickness of coin = 1.55 mm.

Q: 5. Graphite and diamond are both made of pure carbon. Graphite has a density of 2.266 g cm diamond…

A: Ans: 5 The given values are,

Q: How many grams of mercury would be contained in 15 compact fluorescents light bulbs?

A: A compact fluorescent light bulb contains 3-5 mg of mercury.  Bulbs with eco-friendly label contain…

Q: Blueberry high-fiber muffins contain 58 %% dietary fiber by mass. If a package with a net weight of…

A: Introduction :  We have to calculate grams of fiber in each muffin . Given: 58% dietary fibre by…

Q: 8. Suppose you were asked to prepare a 250 g chocolate mousse which is a 35% chocolate, 30% cream,…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Use the web to determine the mass of a steel beverage can from the 1970s and the mass of a modern…

A: Mass is a property, which represents the amount of substance present in a sample and it is generally…

Q: If two astronauts have the same mass and one is on Earth and the other is on Jupiter (a larger…

A: The solution is given below -

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".