The mass of premature babies is customarily determined in grams. If a premature baby weighs 1.54×103 g, what is its mass in pounds?

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: A student measures the mass of a piece of aluminum, and finds it to be 8.945 g. She finds that the…

A:

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: An empty vial weighs 59.43 g. If the vial weighs 158.65g when filled with liquid mercury (d=13.53…

A: Given,Mass of empty vial = 59.43 gMass of vial filled with liquid mercury = 158.65 gMass of liquid…

Q: An empty vial weighs 53.56 g. The vial weighs 474.24 g when filled with liquid mercury  (d = 13.53…

A: Given : mass of vial = 53.56 g Mass of vial with mercury filled = 474.24 g density of mercury =…

Q: A chemistry student needs 60.0 g of tetrahydrofuran for an experiment. By consulting the CRC…

A: The density is an intrinsic property that given the mass of an object per unit volume.…

Q: You are given a bottle that contains 4.39 cm^3 of a metallic solid. The total mass of the bottle and…

A: The density of a solid can be defined as mass of solid per unit volume of solid. The symbol used for…

Q: If a sample of unknown substance has a mass of 3.10 kg and a volume of 1.80 L, what is the density…

A:

Q: hemist must dilute 95.2 mL of 1.14 mM aqueous magnesium fluoride (MgF₂) solution until the…

A:

Q: A chemistry student needs 40.0 mL of glycerol for an experiment. By consulting the CRC Handbook of…

A: Given  Volume of glycerol = 40 mL  density of glycerol  = 1.26 gram cm-3 or 1.26 gram/cm3 Mass of…

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: A chemist must dilute 73.5 mL of 3.19 M aqueous zinc nitrate (Zn . She'll do this by adding…

A: (Before dilution) Initial volume of aqueous zinc nitrate Zn(NO3)2 solution = V1 = 73.5 mL  (1mL =…

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: A material will float on the surface of a liquid if the material has a density less than that of the…

A:

Q: The average adult heart pumps about 84. mL/s of blood at 72 beats per minute. Suppose you need to…

A: According to given data heart pumps  blood at the rate of 84ml/s at 72 beats per minute.

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: 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: 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: The distance between the centers of the two oxygen atoms in an oxygen molecule is 1.21 × 10−8 cm.…

A: Units of measurement are needed for the desired calculations. It gives different ways to work out…

Q: The liquid chlorocyclohexane has a density of 1.00 g/mL at 20.0°C. If a 123 gram sample of this…

A: Density is defined as the mass of the substance per unit volume. It can be expressed as,…

Q: A block of wood 22.0 cm x 180 mm x 0.057 mm has a mass of 1.426 x10^3 grams. What is the volume of…

A: • The values provided in the question are:-   i) Length of a block of wood, l = 22.0 cm  ii) Width…

Q: One carat is equivalent to a mass of 0.200 g. Use the fact that 1 kg (1000 g) has a weight of 2.205…

A: Given,  The weight of a diamond is 1414 carat.  The weight of a diamond in pounds is:

Q: What is the volume of a box in cm^3 if its dimensions are 7 inches x 7.7 inches x 10.7 inches? 1…

A: Given dimensions has to be converted from inches to cm.

Q: Lead has a density of 11.4 g/cm3. What is the mass in grams of a cube of lead that has the…

A:

Q: A chemist must dilute 22.0 mL of 45.9 µM aqueous magnesium fluoride (MgF₂) solution until the…

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Q: The maximum dosage of medicine A is listed as 20.0 mg per kg of body weight per day. The adult…

A:

Q: The stone is a unit of weight that is still used in some areas of Europe. It is equal to exactly 14…

A: Given, Weight of person = 14.9 stones

Q: I think I did a calculation wrong but I am having trouble understanding significant figures. In…

A: Significant figures: These are the digits of a number that are useful in terms of accuracy and…

Q: particular flask has a mass of 17.4916 g when empty. When filled with ordinary water at 20.0°C…

A:

Q: The volume of a gold idol is approximately 1.0L. The density of gold is 19.3 g/ml and the density of…

A: We know that, density is defined as the mass per unit volume, i.e.…

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: 1. Suppose some measurements are made on two different homogeneous stones to find out if they are…

A: Mass and volume are extensive properties which depends upon the amount of the substance and thus,…

Q: An unknown object is placed on a balance, which then reads 6.122 g. Its volume is measured to be…

A: Answer:Here:

Q: the radius of a neon atom is 6.9 x 10 ^-2 nm, and its mass is 3.35 x 10^-17 micrograms. what is the…

A: 6.9 * 10-2 nm = 6.9 * 10-12  m  We know that formula of volume of sphere  = 4/3 πr3  As 1 meter =…

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

A:

Q: When 89.329 g of an irregularly shaped sample of cobalt was placed in a container and filled to the…

A: Given: Total volume of liquid = 25.00 mL. Mass of Cobalt = 89.329 g. Mass of cobalt with ethyl…

Q: A certain chemical plant produces 7.46 × 108 kg of polyethylene in one year. Express this amount in…

A: A decimal number is the one that consists of a whole number and some fractional part.

Q: Gold has a density of 19.3 g/cm3.  A standard gold bar measures 7 inches x 3 5/8 inches x 1 3/4…

A:

Q: an object weighing 16.9 g into an open vessel that is full of ethanol, so that a volume of ethanol…

A: Given: mass of object=16.9 gnew weight of vessel=10.6 g higherdensity of ethanol=0.789 g/cm3 To…

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.