A chemist has a block of iron metal (density is 7.87 g/mL). The block weighs 2.10 g. What is the volume of the iron block in mL?

Q: A doctor prescribes 2.5 g2.5 g of a drug, daily, for a patient. The pharmacist has only 500500 mg…

A: A doctor prescribes 2.5 g of a drug, daily, for a patient. The pharmacist has only 500 mg tablets…

Q: A student is determining the density of an unknown metal with a mass of 256.0 g. The student…

A: First, the volume of unknown metal is determined as follows,

Q: What is the volume in liters of 5.687 pounds of gold? The density of the gold is 19.3 pounds.…

A: Given mass of gold = 5.687 pound density of gold = 19.3 g/cm3

Q: Consider the following monosaccharide: CH2OH OH O OH ОН ОН The above molecule is [ Select ] v, is…

A:

Q: If a man weighs 70.0kg, how many pounds does he weigh? You know that 1kg = 2.2lbs

A: Weight of Man = 70 Kg  And   1 Kg = 2.2 lbs

Q: A cube of an unknown metal was dropped in a graduated cylinder containing 45.0mL of water. After the…

A: Given:

Q: What is the density, in g/mL, of the metal?

A:

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 block of iron was measured to be 2.00 cm by 3.15 cm by 5.25 cm. If the density of iron is 7.87…

A: Block of Iron was measured and value is given Density of iron is given How Heavy was the block of…

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: Iron has a density of 7.87 g/cm³. If 84.7 g of iron is added to 83.4 mL of water in a graduated…

A: Given -> Density = 7.87 g/cm3 Weight of iron = 84.7 gm  Volume of water = 83.4 ml

Q: A 330 mg piece of gold (density = 19.3 gcm3) is hammered into a sheet of gold leaf that has a length…

A: Please see the attached image for the solution.  If there are queries or if the image is not…

Q: A flask that contains 14. 59 mL liquid has a mass of 35. 66 g . What is the density of the liquid if…

A:

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: Aluminum has a density of 2.70 g/cm3. What is the mass of an aluminum cube with a length of 3.61 cm?…

A: Length, a = 3.61 cm Volume of cube is obtained from length – Volume = a3=3.61 cm3=47.046 cm3

Q: Suppose you were given a piece of unknown metal, with a mass of 22.580 g, and a 50-mL graduated…

A:

Q: A 330 mg piece of gold (density = 19.3 g/cm3) is hammered into a sheet of gold leaf that has a…

A: Please see the attached image for the solution.  If there are queries or if the image is not…

Q: Beer is often sold by the keg, which has a volume of 15.5 gallons.  How many liters is in a keg?…

A:

Q: The density of a quartz mineral was determined by adding a weighed piece to a graduated cylinder…

A:

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 rectangular block of copper alloy has a mass of 1896 g. The dimensions of the block are 8.4 cm by…

A:

Q: A student is determining the density of unknown metal with a mass of 627.0 g. The student partially…

A:

Q: The density of sugar is 1.59 g/mL. If a crystal of sugar has a mass of 2.75 kg, what is the volume…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: There is a pebble in a graduated cylinder filled with water and the volume reads 106 mL. If you…

A: The objective of this question is to find the mass of the pebble given its density and the change in…

Q: The density of water at 4°C is 1 g/mL. What is this in oz/pt?

A: Given- Density of water at 4°C is 1g/mL

Q: Aluminum has a density of 2.70 g/cm3. What mass of Al would displace a volume of 10.25 mL?

A: Given that  density = 2.70 g/cm3  Volume = 10.25 mL mass = ? we know that 1 cm3 = 1 mL hence, Volume…

Q: A piece of metal ore weights 2.00 g. When a student places it into a graduated cylinder containing…

A:

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: The density of an object was 2.622 g/in3. What was the density in g/cm3? There are 2.54 cm in an…

A: 1 g/in3 = 1 g /(2.54 cm)3          (since 1 in = 2.54 cm)             = 1/(2.54)3 g/cm3…

Q: The nurse determines that a newborn weighs 6 lb 7 oz. What would be the equivalent of this weight in…

A: Dimensional analysis is used to convert a physical quantity given in one type of unit to some other…

Q: a student uses a graduated cylinder to determine the volume of water dispensed from a 50.00 ml…

A: To find percentage difference between two values, calculate difference between two values and divide…

Q: You are trying to determine the density of a piece of metal. You use a balance and find that the…

A:

Q: You would like to determine the density of an unknown metal. You fill a graduated cylinder with…

A: Density is the mass of an object contained per unit volume. It is the ratio of mass to volume.

Q: hardware salesman measures the mass of a box containing  1000  washers.  The mass is  0.7222   kg…

A: We know from the unit conversion in chemistry, to measure small amount we generally used mg,…

Q: Your 50 mL beaker has a mass of 6.51 g. You add 10.00 mL to the 50 mL beaker and now the total mass…

A: Given,     50 mL beaker has a mass of 6.51 g. You add 10.00 mL to the 50 mL beaker and now the total…

Q: flask of mercury has a mass of 76.0 pounds (lbs). What is the mass of the flask in grams?  3.45 x…

A: The mass of flask of mercury  = 76pounds  1 Pounds = 453.92grams

Q: You have two pieces of metal X and Z that both weigh 5.0 g. X has a density of 12.2 g/mL and Z has a…

A: Density is the mass of substance present per unit volume.  Density = mass/ volume. Unit of density…

Q: A hectacre (1.0000 x 104 m2) is a metric unit of area analogous to an acre. How many square feet are…

A: 1 feet consists of 0.3048 m and 1 square feet consists of 0.093 m2. 1 hectare consists of 10000 m2 5…

Q: The Kohinoor diamond is an 18 carats diamond and has a density of 3.51 g/cm3. 1 Carat = 2.00 x 102…

A:

Q: Suppose you were given a piece of unknown metal, with a mass of 22.510 g, and a 50-mL graduated…

A: Mass of metal = 22.510 gm  Volume of water = 36.1 ml  Volume of water after addition of metal = 45.8…

Q: A block of wood has the measurements 78 cm X 15.1 cm X 243.1 cm has a mass of 1.716 x 10° grams.…

A:

Q: A long ton is defined as exactly 2240 lb. If a shipment weighs 12.565 tons how much does it weigh in…

A: Unit conversions. 1 long ton = 2240 lb 1 lb = 0.4536 kg   1 long ton = 2240×0.4536 kg = 1016.06 kg

Q: A student is determining the density of an unknown metal with a mass of 232.0 g. The student…

A: Given, the mass of unknown metal = 232.0 g Now calculate the volume of unknown metal is determined…

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.