The ionic radius of a sodium ion is 2.27 angstroms (A) . What is this length in um ?

Q: The density of helium gas under certain conditions is found to be 0.164 kg/m³. What is the volume in…

A:

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: O. In chemistry, the particles of matter that we encounter are quite small. The size of atoms were…

A: radius of Chlorine atom = 0.99

Q: Lake Baikal in Siberia is the largest freshwater body on Earth by volume, at 5666 mi³ . What is this…

A: This unit conversion can be done by using following relations:1 cubic mile( mi3) = 1.472 x 1011 ft31…

Q: The average radius of a molecule of lysozyme, an enzyme intears, is 1430 pm. What is its radius in…

A: Length can be measured in different units such as meter, kilometer, picometer, centimeter, nanometer…

Q: What is the minimum mass of magnetite Fe3O4, a iron ore, from which 165.g of pure iron could be…

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: The density of methanol at 20.0 Celsius is 0.791 g/mL. What is the mass, in grams, of a 280. mL…

A: Given : density of methanol = 0.791 g/mL And volume of methanol = 280 mL

Q: A beaker has a mass of 225.08g . When a liquid is added to the beaker, the combined mass is…

A:

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: spherical glass bulb measures 35.5 mm in diameter. What is the volume of the bulb in cubic…

A: We have given that  A spherical glass bulb measures 35.5 mm in diameter. What is the volume of the…

Q: Which is larger in each pair, and by approximately how much? (a) A liter or a quart (b) A mile or a…

A: a) A liter or a quart = In the metric system, 1Liter = 1.056 quart. Therefore, a litre is larger…

Q: A solution is made by dissolving 8 grams of a salt in 100 cm³ of water (density = 1 g/cm³). Assuming…

A: Given: Mass of salt = 8 gm Volume of water = 100 cm3 Density of water =  1 g/cm3 We know that,…

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: 89. The hydrogen atom has a volume of approximately 6.2 x 10-31 m². What is this volume in each…

A: Given data Volume of Hydrogen atom  V=6.2×10-31 m3 We know the following standard conversion 1 meter…

Q: onion is measured to be 0.085 mm thick. What is this in inches?

A: Thicknesses of onion skin = 0.085 mm We have to find the thickness in the unit of inches.…

Q: How many cubic meters (m³) are in 288 liters (L)? Round to the correct number of significant…

A:

Q: What is the mass of 18 cm cube of iron if the density of iron is 7.87 g/cm ^3?

A: Step : 1             What is the mass of 18 cm cube of iron if the density of iron is 7.87 g/cm 3?

Q: An astronaut on the moon places a package on a scale and finds its weight to be 19 N. (a) What…

A: On the moon, acceleration due to gravity is (gmoon)= 1.63m/s2 We know        F= m ×(gmoon)   Given…

Q: 248

A: Density= mass/volume Mass = density× volume Density=10.5 g/ cm3 Volume= 23.6cm3

Q: The quantitative significance of “take a deep breath" varies, of course, with the individual. When…

A:

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: 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: A sheet of aluminum measures 4.95 cm by 2.45 cm. If the volume is 2.75 cm³, what is the thickness of…

A: The thickness of the aluminum foil has to be given, Given: Length=4.95 cm Width=2.45 cm Volume=2.75…

Q: Pheromones are compounds secreted by females of manyinsect species to attract mates. Typically, 1.0…

A: Density can be calculated by using the formula given below as; Density=MassVolume…

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: mass of the necklace

A: This is simply a question of density. As we know that by using concept of density, we can calculate…

Q: A small hole in the wing of a space shuttle requires a 16.0 cm ^ 2 (a) What is the patch's area in…

A: Since we know that  1 cm = 10-5 km  1 cm2  = (10-5)2 km2 = 10-10 km2

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: Convert 3.25 × 103 terameters (Tm) into nanometers (nm).

A: Given information,    3.25 × 103 terameters

Q: Gold, which has a density of 19.32 g/cm^3 , is sold by the troy ounce (abbreviated oz t). Which is…

A: We have to calculate the volume of 0.55 oz t gold

Q: A 0.260 mL sample of very low density lipoprotein (VLDL) has a mass of 212mg. What is the density of…

A: Given,  Volume of sample = 0.260 mL And mass = 212 mg  We have to calculate the density of the…

Q: The ionic radius of a sodium ion is 2.27 angstroms (A). What is this length in um ?

A: Given,The ionic radius of sodium ion = 2.27 Ao ( angstrom ).

Q: The density of methanol at 20.0 oC is 0.791 g/mL.  What is the mass, in grams, of a 280. mL sample?

A: Given : density of methanol = 0.791 g/mL And volume of methanol = 280 mL

Q: gold is one of the densest metals, having a density of 19.3g/cm^3. If i have a gold sample that…

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

Q: The world’s oceans have a combined volume of 3.204 x 10^8 miles^3. (A) If the average density of…

A: In general. density can be defined as mass of a substance per unit volume of that substance.

Q: to make a tablet of aspirin, it requires 249 mg of salicylic acid. if the chemist purchased 9.0 x…

A: mass  of salicylic acid purchased by chemist = 9.0 x 10-3 OZ  Mass of salicylic acid required to…

Q: An atom of a particular element has a volume of 7.8*10^-31 meter cubed. What is this volume in cubic…

A:

Q: The wavelength for the color indigo is 445 nanometers (nm). What is this wavelength in kilometers…

A:

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.