Subscript Ratios 14. How many moles of oxygen are present in 2.49 moles of Ca3(PO4)2? 15. How many moles of NCI3 contains 7.42 moles of Cl? 16. How many grams of carbon are present in 1.95 moles of C6H1206? 17. How many atoms of sodium are present in 2.54 moles of Na3N?

Q: All of these are examples of physical properties except: A. Color Change B. Density C.…

A:

Q: Which of the following is not included in the INCI dictionary under ingredient information?   A.…

A: Given: INCI dictionary under ingredient information     A.    Chemical Class     B.    INCI name of…

Q: How man

A: mole interms of particles :         1 mole = 6.022 x 1023 particles   mole interms of mass :…

Q: You add chocolate milk syrup to a glass of milk and stir it up the resulting chocolate milk would be…

A: When   we  add chocolate milk syrup to a glass of milk and stir it up. the resulting chocolate milk…

Q: What type of metal is this? Aluminum, Copper, Lead or Iron?

A: Specific heat of metal in cal/g˚C is 0.220 Specific heat of metal in J/g˚C is 0.920.

Q: Could the nugget be made of gold? Match the words in the left column to the appropriate blanks in…

A: Since the nugget is basically a small chunk of gold and other precious metals.

Q: is paint a compound or element

A: An element is a pure substance that cannot be broken down by chemical mean. Compound is a chemical…

Q: when do sulfur and iron change their physical properties?

A: When iron and sulphur reacts, they form a compound iron sulphide (FeS)

Q: A theoretical plate is: the theoretical glassware it takes to distill a specific mixture. an…

A: We need to find what is a theoritical plate.

Q: In an experiment, calcium carbonate reacted with different volumes of hydrochloric acid in water.…

A: Calcium carbonate reacts with hydrochloric acid to form the carbon dioxide gas.

Q: A blue crystal is added to an alcohol solution, but does not dissolve in the alcohol. How would you…

A: It is known that like dissolves like, meaning that substances with similar chemical characteristics…

Q: Round 12.3456 to 4 significant figures

A: 1.All non zero numbers are counting as significant figures.  2. If right of the last significant…

Q: What branch of chemistry would study all other elements except carbon based materials? Explain.

A: Given branch of chemistry would study all other elements except carbon-based materials

Q: Match the correct word with the description. v Blood is an example of element. A. v Air is an…

A: Elements are those substances which contain the same atoms with same number of protons while…

Q: How can you determine the presence of the following in a solution by stating which of the following…

A: Since you have posted multiple questions, and have not specified which question you want us to…

Q: 11 This Pictograms stands for

A: The given pictogram is chemical hazard symbol. Chemical hazard symbols are found on reagent bottles…

Q: Suppose you are measuring the mass of a solid sample on a balance using a weigh boat. You record the…

A: given,               The mass of weigh boat = 3.451 g.             Mass of weigh boat and sample =…

Q: A quantity of substance that can be seen would be considered the A level.

A: The complete sentence is: "A quantity of substance that can be seen would be considered the…

Q: mixture that will caused a cube to be suspended in a liquid

A: To create a mixture that causes a cube to be suspended in a liquid, you can experiment with the…

Q: Select the Heterogeneous mixture from the list.a) A bar of Gold b) Cement with gravel c) Ammonia d)…

A: A homogeneous mixture has uniform composition throughout the mixture whereas the heterogeneous…

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.