As the nylon thread is pulled out of liquids in the beaker,the measured mass of the liquids in the container decreases.Explain why in terms of atoms

Q: Determine the molar mass of NaAlSi3O8. Use the abbreviated form of the unit in your answer and round…

A: Molar mass of  Na :- 23 g/mol  Al :- 27 g/mol  Si :- 28 g/mol  O :- 16 g/mol  These all data are…

Q: nd contains 12.4g of hydrogen. What is the percent by mass of hydrogen in the compound?

A: Given A 37.1 g sample of an unknown compound contains 12.4g of hydrogen. What is the percent by mass…

Q: A student obtains 50.00 grams of calcium hydroxide.  Determine the number of hydroxide ions present…

A: The chemical formula of calcium hydroxide is Ca(OH)2. One molecule or unit of it contains one…

Q: If 1.00 g of gray zinc powder reacts with 0.49 g of yellow sulfur powder, what is the mass of the…

A: Given : Mass of gray zinc powder = 1.00 g Mass of  yellow sulfur powder = 0.49 g Mass of ZnS = ?

Q: A sample of ammonia, NH3, has a mass of 77.25 g. Calculate the number of ammonia molecules in the…

A:

Q: Analysis of a 29.1 g sample of water revealed a mass percent for lead of 4.35%. Calculate the number…

A: Mass percent of lead is equal to the mass of lead divided by the mass of water multiplied by 100.

Q: The mass of silver in a 9.000 g of silver chloride,AgCl is ?

A:

Q: Phillip the freshman chemistry student was stirring his salt during heating. If some of the hydrated…

A: Given : Some mass of anhydrous salt is removed in the rod.

Q: If I weigh 40 kg, what is my molar mass? In other words, if we made trillions and trillions of my…

A: Cloning of cells results in similar types of cells. One mole of a particle is 6.022  x  1023…

Q: A sample of barium reacts completely with oxygen in a specialized crucible. The reaction that occurs…

A: The reaction taking place is given as, => Barium + oxygen ------> Barium oxide  Given : Mass…

Q: A chemist has two different gasohol mixtures available. One contains 20% alcohol and the other 12%…

A:

Q: What is the average mass of the tin in the sample?

A: It is a given a mass spectrum of tin which has 3 peaks at 116 with 27% abundance and 118 with 58%…

Q: Mass of empty evaporating dish + watch glass 65.362 g B Mass of dish + watch glass + initial solid…

A: Given A) Mass of empty evaporating dish + watch glass =  65.362 g B) Mass of dish + watch glass +…

Q: Calculate the mass of hydrazine (N₂H4) that contains a trillion (1.00 × 10¹2) nitrogen atoms. Be…

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: Analysis of a 31.7 g sample of water revealed a mass percent for lead of 3.3%. Calculate the number…

A: Analysis of 31.7 g of water was done and the mass percentage of lead was found to be 3.3%,

Q: If the reaction between zinc chloride and sodium phosphat produces 25.7 g of product, then what is…

A:

Q: How much will 5 moles of H2 gas weigh, in grams?

A: We are given 5 moles of H2 gas.

Q: Convert to particles : 38.1 g iron (III) chloride to atomic mass units (amu)

A: Please find your solution below : Atomic mass unit is defined as 1/12 th of mass of unbound neutral…

Q: A) a 10.00g unknown sample with a formula of CxHY was analyzed by combustion analysis. The sample…

A: The values are given as follows:

Q: What are the names of the fundamental laws which explain the properties of massand define one of…

A: Answer -  The names of the fundamental laws which explain the properties of mass - 1.The law of the…

Q: (c) Vitamin C contains carbon, hydrogen and oxygen only. It is 4.579% by mass of hydrogen. One…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: 8. How many chlorine atoms are in 8.4 liters of chlorine gas?

A: Given 8.4 litre gas

Q: Calculate the number of moles in and the mass of an 6.24 L sample ammonia, NH3, measured at standard…

A: Here, we have to calculate the number of moles in and the mass of a 6.24 L sample ammonia, NH3,…

Q: A large number of molecules is called a an element b a compound c a mixture d Depends on the…

A: A multiple choice question based on molecule that is to be accomplished.

Q: What is the percent by mass of carbon

A: Percent by mass = (mass of C/total mass of compound) × 100%

Q: 325.2 g sample contains 42.3% NaCl. How many grams of NaCl are in the sample?

A: Mass of the solution is = 325.2 g The concentration of the solution is = 42.3 % NaCl Mass of NaCl in…

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: Mercury (Hg) metal is used in thermometers and making car headlights, and has a mass of 1.0473g.…

A:

Q: What is the mass of 83.89 moles of X? (Assume that the molar mass of X is 27.78 grams per mole.)…

A:

Q: Analysis of a 39.8 g sample of water revealed a mass percent for lead of 4.87%. Calculate the number…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: How much does 19.11 moles of X weigh in grams? (Assume that the molar mass of X is 28.84 grams per…

A: Data given, Number of moles of X = 19.11 moles  Molar mass of X = 28.84 grams/mole

Q: Sea salt is formed by natural evaporation of ocean water and contains 98% sodium chloride. The…

A:

Q: If 21.4 g of aluminum is reacted with 91.3 g of Fe2O3, the prodücts will be Al2O3 and iron. What…

A: Limiting reagent: In a chemical reaction, the reagent that totally consumed is known as a limiting…

Q: A chemist needs 1.25 moles of sugar to dissolve in 1 liter of water. How many grams of sugar will…

A:

Q: A 15.6 g sample of magnesium carbonate contains 3.2 g of magnesium. What is the percent Magnesium in…

A: Solution stoichiometry is mainly based on the calculation of moles and volumes. These two values are…

Q: The formula for alum has 1 Al. How many units alum could be made from 7 Al atoms? Answer with a…

A: The molecular formula of alum is K2(SO4)·Al2(SO4)3·24H2O or KAl(SO4)2·12H2O

Q: 15.0 g of iron is allowed to react with air to produce Iron III Oxide. If the reaction is complete,…

A: solution is followed as:

Q: Calculate the mass of carbon (in grams) in 366 g of acetic acid.

A: Given :-  Mass of acetic acid = 366 g  To calculate :-  Mass of carbon (in grams)

Q: What is the mass of 1.761 × 10^8 mol S? Answer in units of g.

A:

Q: (Mass of crucible and cover is 43.92 g. The mass of crucible, cover, and magnesium is 44.62g. Mass…

A: Magnesium reacts with oxygen to produce magnesium oxide which is white in color. 2Mg+O2→2MgO This…

Q: Use the following information to determine the mass of chlorine combined with the magnesium to two…

A: Given, mass of crucible = 35.1  mass of crucible and magnesium = 38.92  mass of crucible and…

Q: What is the mass of copper  g what is the mass of chloride g given copper chloride 1.652g mass of…

A: Mass of copper = (mass of evaporating dish + copper) - (mass of empty evaporating dish) Mass of…

Q: A sample of carbon weighting 1.48 g was burned in an excess of air. The mass of carbon dioxide, the…

A: This can be calculated in context to the percent mass of carbon. The reaction occurring in the…

Q: How many moles of calcium do you have if you measure out 19.13 g of calcium? Enter your answer in…

A:

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.