A certain person had a brain that weighed 1.35 kg and contained 2.65 x 10¹0 cells. Assuming that each cell was completely filled with water (density=1.00 g/mL), calculate the length of one side of such a cell if it were a cube. 0.0037 If the cells were spread out into a thin layer that was a single cell thick, what would be the total surface area (in square meters) for one side of the cell layer?

Q: The concentration of mercury in a polluted lake is 0.33 micrograms per liter of water. What is the…

A: Given,Volume of the lake = 1.5 x 1012cm30.33 micrograms per liter of water

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: The average distance between the Earth and the Moon is 240,000 miles. Express this distance in…

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: Given : Mass of water in swimming pool = 8.45 X 104 gallons  Mass percent of chlorine = 6.00 %  And…

Q: In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass…

A:

Q: The density of lithium is 0.530 g/cm^3 what is the volume occupied by 1.20 x 10^3 g of lithium?

A: Density = mass / volume  density of lithium is 0.530 g/cm3 0.530 g in 1 cm3

Q: The dimensions of a box are 1.2 feet by 0.50 feet by 0.75 feet. Calculate the volume of the box in…

A:

Q: the density of gallium triiodide, Gal, is 4.15g/cm^3. If the initial volume of water in a graduated…

A: The volume of the water increased after adding the crystal of gallium triiodide can be calculated…

Q: High-density lipoprotein (HDL) is a type of cholesterol, sometimes called “good cholesterol,” that…

A: Density is given by the ratio of the mass of the substance to that of the volume.

Q: Diamonds are usually measured in carats, and 1 carat = 0.200 g. The density of diamond is 3.51…

A: Density = mass/volume . From carat we can get the mass . Then by deciding it by its density we can…

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

A:

Q: To identify the substance, a chemist determined its density. By pouring a sample of the liquid into…

A: Generally, the density for a substance is determined by dividing the substance mass with the volume.

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: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The values are given as follows:

Q: Iron has a density of 7.874 g/cm^3.What is the mass of a rectangular block of iron with dimensions…

A: Density of a substance is given by the ratio of mass of the substance to its volume. Density =…

Q: The density of osmium (the densest metal) is 22.57 g/cm3. If a 1.00-kg rectangular block of osmium…

A:

Q: THe density of aluminium is 2.7 g/cm3. what is the mass, in grams, of a piece of aluminium foil that…

A: Given, density of aluminium is 2.7 g/cm3

Q: In the area of nano-chemistry, particles defined as nanoparticles range in size from 1-2500 nm.  1…

A:

Q: Chlorine is used to disinfect swimming pools. The accepted concentration for this purpose is 1 ppm…

A: The mass of water in the pool is calculated as,

Q: Calculate the thickness of a piece of golf foil thats 1.52 cm wide and 2.25 cm long, and has a mass…

A: The density of the species can be described as the ratio of the mass of the species to the volume of…

Q: A 26-meter-tall statue of Buddha in Tibet is covered with 279 kg of gold. If the gold was applied to…

A: given, weight of gold = 279 kg = 279000grams thickness = 0.0015 mm = 0.00015cm density of gold =…

Q: The density of a cooking oil is 0.92g/cm^3 calculate the mass in grams g for an oil droplet has a…

A:

Q: Lithium is a soft, gray solid that has the lowest density of any metal. It is an essential component…

A: The given values for rectangular slab of lithium are: m (mass)=1.49×103 mg=1.49×103×10-3 g=1.49 gl…

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

A: Density of substance is calculated by dividing the given mass with volume  Given density = 19.3…

Q: If a monolayer of stearic acid has a mass of 2.5*10^-5 g and occupies a surface area of 82 cm^2,…

A: Volume = Mass/density Height = Volume/surface area Given that: Mass of stearic acid =2.5 x 10-5 g…

Q: You are given the length and width of 10.5 in by 8.5 in. Upon weighing, it comes out to be 0.885 g.…

A: Given,Dimensions are 10.5 inch by 8.5 inch.Density is 1.10g/cm3Mass is 0.885 g.Thichkness = ?

Q: Chemistry Question

A: in periodic table we have 18 groups and 7 periods. horizontal rows called as periods. vertical…

Q: the unit of land measure in the english system is the acre, while that in the metric system is the…

A: We have to calculate the area in hectares.

Q: if oil is placed in a large body of water, such as a lake or ocean it spreads out to form a surface…

A: Answer: Whenever one shape is converted into another shape, volume of old shape is always equal to…

Q: About two centuries ago, Benjamin Franklin showed that 1teaspoon of oil would cover about 0.5 acre…

A: The volume of the oil (V) = Area (A) x Thickness (T) T = V/A    1 km = 0.6214 mi, so 1 km2 = (0.6214…

Q: In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass…

A:

Q: In 1999, scientists discovered a new class of black holes with masses 100 to 10,000 times the mass…

A: Calculate mass of black hole: 1 kg = 1000 g

Q: A thief plans to steal a gold sphere with a radius of 28.4 cm from a museum. If the gold has a…

A: Given A thief plans to steal a gold sphere with a radius of 28.4cm from a museum. If the gold has 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…

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.