What is the molar mass of phosphorus pentachloride (PC15)? O 190.30 g/mol O 208.22 g/mol O 172.75 g/mol O 202.82 g/mol O 177.25 g/mol

Q: Which weighs more: a 1.00-cm cube of ice or 1.00 cm³ of water?

A: Given : Volume of ice = 1.00 cm3 Volume of water = 1.00 cm3

Q: Use decimal notation to express 4.22 mg in grams?

A: When we convert grams to milligrams, the conversion factor is

Q: Gaseous ethane (CH₂CH3) will react with gaseous oxygen to produce gaseous carbon dioxide (CO₂) and…

A: Ethane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: Ethanol is a common laboratory solvent and has a density of 0.7890.789 g/mL. What is the mass, in…

A: Given: Density of ethanol = 0.7890 g/mL Volume of ethanol= 143143 mL To Calculate : Mass in grams…

Q: What is the mass of a sphere of zinc with a diameter of 2.03 cm. The volume of a sphere is V =…

A:

Q: A brownie contains 1.30 x 102 mg of sodium. What is this mass in units of grams?

A: 1 mg = 10-3 g

Q: 6. What is the mass, in g, of a piece of iron that has a volume of 1.50 x 10² and a density of 7.20…

A: The mass of a substance is equal to its density multiplied by its volume. In this case, the volume…

Q: 3. A sheet of metal is 78.1 mm wide and 40.5 mm long. If it weighs 31.19 g and the density of the…

A:

Q: . A gold brick is 15.24 cm long, 7.62 cm wide weighs 5,690.0 g. What is the height of the brick?

A: Given that: Length of gold brick (l) = 15.24 cm Width (b) = 7.62 cm mass= 5690.0 g   The height of…

Q: Ethanol is a common laboratory solvent and has a density of 0.7890.789 g/mL. What is the mass, in…

A: The mass of an ethanol is to be determined from the given volume and density. It seems like the…

Q: 334.54 grams + 198 grams

A: The addition can be done as: 334.54+198.00 =532.54 g The value of 198 is written as 198.00, that is…

Q: A single water molecule has a mass of 2.99x10-23 g. Each molecule contains two hydrogen atoms that…

A: Given data, The mass of a single water molecule = 2.99 × 10-23 The percentage of two hydrogen atoms…

Q: A 1.0-inch segment of thread weighs 2.9 mg. What would be the mass, in g, of a full spool of thread…

A:

Q: 2650g=?kg

A:

Q: A large stone weighs 53.0kg. How many pounds does it pounds weigh?

A: Given : Weight of stone in Kg = 53.0 Kg

Q: calculate the volume in cm3 of 1,555,738,322 ng of manganese. the density of manganese is 7.20 g/cm3

A:

Q: A 5lb bag of sugar weigh 2.270kg. Sugar has a molecular weight of 342g/mole. How many moles are in…

A:

Q: 305. g of two different liquids are poured into beakers. This is what the beakers look like just…

A: As we can see that volume for liquid A is less than volume of liquid B  mass is same for both liquid…

Q: What is the mass of 28.0 liters of gasoline? Assume the gasoline is pure octane with a density of…

A: The gasoline is considered to be pure octane (C8H18) whose density is 0.692 g/mL. The mass of the…

Q: The density of water at 25 °C is 1.00 g/mL. What is the mass in kilograms of 1.00 m3of water?

A: Density can be defined as the mass of substance per unit volume. Mathematically it is given as:…

Q: Ethanol is a common laboratory solvent and has a density of 0.789 g/mL. What is the mass, in grams,…

A: The relationship between mass, density and volume of any substance is : => density of substance =…

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: An object with a mass of 0.231 kg has a density of 2.02 g/cm3. What is the volume (cm3) of the…

A: Density is the amount of substance present per unit of volume. Density= mass/ volume

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: 2896 ng to mg

A:

Q: 4.05 kg + 567.95 g + 100.1 g

A: Given-> 4.05 kg + 567.95 g + 100.1 g  ->In addition and subtraction answer contains least…

Q: An object has a mass of 24.98 oz. What is its mass in grams?

A: 1 ounce = 28.35 g

Q: A particular paint has a density of O.914g/cm3. You need to cover a wall that is 7.6m long and 2.74m…

A: Given data  Density of paint = 0.914 g/cm3  Length of wall = 7.6 m Height of wall = 2.74 m Thickness…

Q: A cube of ruthenium metal 1.5 cm on a side has a mass of 42.0 g. What is its density in g/cm3?

A: Given : Length of side of cube = 1.5 cm And mass of cube = 42.0 g

Q: Ethanol is a common laboratory solvent and has a density of 0.7890.789 g/mL. What is the mass, in…

A: Hi there! The question which you have posted says that the density of 0.7890.789 g/ml. Assuming it…

Q: Ethanol is a common laboratory solvent and has a density of 0.7890.789 g/mL. What is the mass, in…

A:

Q: The Great Star of Africa weighs 530.40 carats. The Great Star of Africa also has an estimated value…

A: Given,The weight of the Great Star of Africa = 53040 caratsThe estimated value of the Great Star of…

Q: Osmium has a density of 22.6 g/cm3. The mass of a block of osmium that measures 1.01 cm x 0.233 cm x…

A:

Q: A beaker weighs 145.60 grams. The chemical weighs 3.467 grams. What is the total mass?

A: Given: Weight of beaker = 145.60 g Weight of chemical = 3.467 g

Q: 3. The following data refer to the element Phosphorus. Classify each as a physical or chemical…

A: Physical properties are those which can be observed with naked eyes without adding any chemical or…

Q: A gold brick is 15.24 cm long, 7.62 cm wide and 2.54 cm high. How much would it weigh?

A: Given : Length of brick = 15.24 cm  Width of brick = 7.62 cm  And height of brick = 2.54 cm

Q: ▪ In a THC metabolite confirmation by GCMS, the metabolite standard curve has a slope of 5ng/ml. In…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.