1. A chemist has a block of lead metal (density is 11.3 g/mL). They drop the metal into a graduated cylinder containing water, and find the volume change is 2.70 mL. What is the mass of the block, in grams?

Q: 1. A 50.00 g sample of a solid is placed into a graduated cylinder and then the cylinder is filled…

A: Given, mass of a sample of solid = 50.00 g            volume of cylinder filled = 100.00 mL…

Q: The average gas mileage of 2020 Jeep Wrangler is 19 miles/gallon. What is the gas mileage in the…

A: Conversion of mileage as given--

Q: A student finds the mass of a beaker to be 85.353 grams. The student transfers 15.2 mL of a liquid…

A: Given: Mass of empty beaker = 85.353 g Volume of liquid = 15.2 mL Mass of beaker + mass of liquid =…

Q: A chemist encounters an unknown metal. They drop the metal into a graduated cylinder containing…

A: The objective of this question is to calculate the density of an unknown metal using the given mass…

Q: A wooden object has a density of 12 g/mL and a volume of 7 mL. What is the mass of this object? 3. A…

A:

Q: A Canadian, driving in the U.S.A., fuels their car at a cost of L The current monetary exchange rate…

A:

Q: A person has a BMI of 19.1 kg/m2. What is this in Ib/ft? A) 42.1 Ib/ft? B) 5.82 Ib/ft? C) 3.91…

A: Density = mass/volume  Volume of cube = length × breadth × height

Q: A substance has a known density of 7.81 g/mL. A large piece of it is measured, and the volume is…

A: Here we use the formula   d = m/v.  Where d= density, m= mass,…

Q: A motorcycle’s fuel tank has a capacity of 0.0221 kL and the motorcycle can travel 15.0 km/L. 1.…

A: The solution is given below -

Q: T added 3 kg of water to my Tish tank.

A: Water density =1  Water in kg and in litre will be same.  1st option : Kilogram of mass , but here…

Q: What value of copper (in dollars) is required to cover a 1550 square foot roof with copper 0.812 mm…

A: Density can be defined as the ratio of the mass to the volume. It is generally expressed in g/L. The…

Q: 3. Iron has a density of 7.87 g/cm3. If a 63.7 gram sample is added to 85.6 mL of water in a…

A: Mass= 63.7gm Density=7.87g/cm3  Volume= mass/density Volume= 63.7÷7.87=8.09ml Initial volume=85.6ml…

Q: Density is a measure of mass per unit volume (or mass/volume). The density of Ben & Jerry’s mint…

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Q: You make a cake that has a mass of 300 grams and fits in a cake pan that is 30 by 10 by 6.0…

A:

Q: A competitive high school swimmer takes 57.9 seconds to swim 100. yards. What is his rate in m/min?

A: Given that, length= 100 yard  time=57.9 seconds  then,

Q: 1. Perform the following conversions. (1 in = 2.54 cm; 1 ft = 12 in; 1 mi = 5 280 ft)  a) 58.8 ft to…

A: Unit conversion means conver one form of unit in to another. It is used in our day to day life.

Q: A student performs an experiment to determine the density of a sugar solution. The student obtains…

A: Accuracy is an analytical technique which tells us how close the observed value is to the true…

Q: 7. José Altuve is a baseball player who plays for the Houston Astros. An Altuve is equivalent to his…

A:

Q: Is this data precise? Explanation required.

A:

Q: Consider the following: If you have 100 grams of water (density: 1.0 g/mL) and 100 grams of vodka…

A: Density  = mass / volume.  From this equation  we can see that if we keep mass constant than Density…

Q: A chemist has a block of iron metal (density is 7.87 g/mL). They drop the metal into a graduated…

A: Density of Iron block = 7.87 g/mL Volume changes of water = 2.10 mL

Q: table salt has a density of 2.16 g/ml. if your doctor says you should limit your intake to 3.75 in a…

A: Given the density of table salt, d = 2.16 g/mL  The required conversion factor from density is: 1 mL…

Q: An organic solvent has a density of 1.47 g/mL. What volume is occupied by 42.5 g of the liquid?

A: To find: volume is occupied by 42.5 g of organic solvent

Q: A chemist has a block of gold metal (density is 19.3 g/mL). They drop the metal into a graduated…

A: Given data, Density = 19.3 g/mL Volume = 1.90 mL To calculate the mass in grams.

Q: A typical human body contains between 9 and 12 pints of blood. A woman's body contains 10.01 pints…

A: Given : Density of  hemoglobin in her blood = 13.5 g/dL

Q: the density of copper is 8.94 g/ml. If you have a 3.50 g piece of copper , what voulume will it…

A: Density of a substance is defined as the mass per unit volume. Here given mass of Cu piece is 3.50 g…

Q: You agree on a $55 payment with your friend to help them move out of their apartment, but after the…

A: Given  money lended = 55$Length = width = height of block = 0.16 inch = aGold rate = $61 per…

Q: Two identical sized sheets of copper and gold are placed side by side on a table. If the copper…

A: Density of gold is 19.3 g/cm3 & density of copper is 8.96 g/cm3. Now, let the cross sectional…

Q: A chemist has a block of gold metal (density is 19.3 g/mL). The block weighs 2.10 g. What is the…

A: Density  expression-: Division of mass in gram to volume in ml lead to result of density in g/mL.…

Q: An empty beaker weighs 39.81 g. When completely filled with water, the beaker and its contents have…

A: Given:  The mass of an empty beaker = 39.81 g The mass of the beaker when it is completely filled…

Q: What is the Volume of 9.86 x 10^-2 pounds 7.90 g/mL steal ( hint use the determined density of steal…

A: Given data, Density of steel = 7.90 g/mL 1 pound = 453.6 g Mass of steel = 9.86 x 10-2 pounds =…

Q: A dosage descibes the amount of medication administered over a specified period of time with a…

A: Information about the question

Q: A dosage descibes the amount of medication administered over a specified period of time with a…

A: In 1 day 4 dose of cephalexin must be given such that in entire one must be given 25 mg/kg of drug.

Q: To measure the volume of an irregularly shaped object, one must measure the volume of water it…

A: As the volume of the chunk of copper = volume of water displaced by it The volume of the chunk of…

Q: Coconut oil has been found to improve Alzheimer's symptoms, improve skin diseases, and kill many…

A: Given d=0.903 g/mL 1 tablespoon = 14.79 mL

Q: The price and density of gold are $57.70 g-1 and 0.698 lb.in-3, respectively. How much would a cube…

A: Given :  Price of gold = $57.70 per gm  Density of gold = 0.698 lb in-3  Length of cube = 1 m = 100…

Q: sample of metal has a mass of 21.49g, and a volume of 6.55 mL. What is the density of this metal?…

A: Density measures how compact the mass in a substance is.An object  has a high density if it is heavy…

Q: An unknown metal sample weighs 18.1 g. This rubber stopper was placed in the graduated cylinder…

A:

Q: A rectangle lead apron is placed over the chest of a patient while X-rays are taken in a dental…

A: The volume of the rectangle is calculated as shown below where l, w, and h are the length, width,…

Q: cats love to play with balls of yarn. if a 3.75 inch diameter ball of yarn weighs 0.110 lbs, what is…

A:

Q: The density of mercury (a liquid) is 13.5 g/mL.  What is the volume (in liters)  of 664 kg of…

A: Given, mass of mercury =664 kg =664000 gramdensity of mercury d =13.5 gmLwe are asked to calculate…

Q: A dosage descibes the amount of medication administered over a specified period of time with a…

A: The frequency at which a medicinal dose is administered is known as the dosing schedule. The dose…

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.