Gold is a very dense metal with a density of 18.3 g/cm3, what is the volume of a 0.255 kg gold sample?

Q: what is the density of the salt in g/mL?

A: Density = mass ÷ volume    Rule for significant figure in division:- Round off final answer as per…

Q: Gold, which has a density of 19.32g/cm^3, is sold by the troy ounce, which is 31.103 g. What is the…

A: We will use this formula, Volume = Mass/density

Q: Gold has a density of 0.01932 kg/cm3. What is the mass (in kg) of a 92.5 cm3 sample of gold?

A:

Q: If a cube of gold has a length of 2.50 cm, what is the mass of the gold sample? which has a density…

A:

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: 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 sample is found to contain 9.75×109 g of salt. Express this quantity in milligrams.

A:

Q: What is the volume of a 275.27 g chunk of iron (Fe)? The density of iron is 7.874 g/cm3.

A: Ans given as follows

Q: A homogeneous mixture was prepared by mixing 0.90 g A, 105.7 g B and 48.17 g C. The volume is found…

A: Given, Volume of mixture = 56.6 cm3 Mass of A = 0.90 g Mass of B = 105 .7 g Mass of C = 48.17 g

Q: Nickel metal has a density of 8.90g/cm^3. What is the mass in milligrams, of a 15cm^3 sample of…

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

Q: Express the following in SI base units using scientific notation (e.g., 1.45 mm = 1.45 × 10-3 m):…

A: Given : 432 kg

Q: The mass of an object was found to be 28.90 g. When this object was dropped in a graduated cylinder…

A: Given, mass of object =28.90 gramthis object was dropped in a graduated cylinder partially filled…

Q: What is the volume, in L, of a room that is 8.00 ft x 10.00 ft x 10.0 ft?

A: The volume in liters has to be determined. Some of the common conversion factors that will be useful…

Q: An atom of a particular element has a volume of 7.8 x 10-31 m3. What is this volume in cubic…

A: An atom is always neutral because of the equal number of electrons and protons. Electrons are…

Q: The mass of Earth is 5.98 ×10^24kg. What is the mass expressed in tera-grams?

A: Given: The mass of the earth = 5.98×1024 kg We have to find the mass in teragrams.

Q: A sample of manganese ore has a density of 7.21. If it measures 8.0 cm by 3.443 cm by 2.15 cm what…

A: Relation between mass (M), volume (V) and density (D) are,Volume (V) = [Mass (M) Density (D)]

Q: If the radius of the sun is 7.001×105  km, what is the average density of the sun in units of grams…

A: Density can be calculated as: Density=MassVolume

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 density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm^3.…

A: The density of mercury is given as 13.6 g/cm3 and it is required to convert this in pounds per cubic…

Q: PART A: A solution of cough syrup contains 5.00% active ingredient by volume. If the total volume of…

A: Total volume of bottle = 74.0 mL active ingredients = 5.00%  So, mL of active ingredients = 74 x…

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

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: What is the circumference in kilometers (km)? in meters (m) (1 mi = 1.6093 km)

A:

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 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: 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 homogeneous mixture was prepared by mixing 0.15 g A, 112.3 g B and the 24.55 g C.  The volume is…

A:

Q: A stack of paper has a volume of 187 cube inches Now all the sheets are laid out on the floor,…

A: Given: Volume of a stack of paper = 187 cubic inches Area covered by paper       = 46,750 square…

Q: If an object as a density of 4.00 g/cm^3, what is its density in units of kg/m^3?

A: Given : density = 4.00 g/cm3

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: What is the volume in cm3 of 1.8 cubic feet?

A: volume in cm3 of 1.8 cubic feet?

Q: A student measures a block to weigh 127.95 grams what would this mass be in milograms with the…

A: Given – Mass of block = 127.95 g   To find - convert g to mg

Q: Solid iron is about 8 times denser than liquid water. If you have a volume of 1000 cm 3 of water and…

A: Given that: The volume of water is 1000 cm3. The volume of iron is 1000 cm3. Iron is 8 times denser…

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

A: Given: Volume of aluminum = 436 in3  And density of aluminum i.e. object 2 = 2.70 g/cm3.

Q: 1. A 25 mL flask is known to hold a total volume of 27.64 mL when completely filled. The empty flask…

A: Given ,Volume of falsk = 25 mLTotal volume it can hold = 27.64 mLMass of flask = 45.897 gMass of…

Q: The mass of a piece of metal is 28.3055 grams. When the piece of metal was dropped into a graduated…

A: Given information: Mass of metal piece = 28.3055 g Initial volume = 7.34 cm3 Final volume = 9.84 cm3

Q: 4) Gold, which has a density of 19.32 g/cm3, is sold by the troy ounce (abbreviated oz t), which is…

A: According to the question, The mass of the gold is given by = 31.103 g The density of the gold is…

Q: All of the platinum ever mined = 25 ft3 What is the price of all of the paltinum ever mined?…

A: The conversion of volume of platinum from 25 ft3 into cm3 can be done as,

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.