Refer to the Chemical Compounds table above. How many total elements are in Ethanol?

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: 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: When burning 180 g of glucose in the presence of 192 g of oxygen, water and carbon dioxide are…

A: Given that : Mass of glucose = 180g Mass of oxygen = 192g Mass of water = 108g Carbon dioxide…

Q: If a certain mixture contains 29.3027% water, how many grams of water are contained in a 12.2576…

A:

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

A:

Q: How many formula units of sodium chloride are there in 1.53 miles?

A:

Q: what happened to the mass of the substances as they burned?

A: The law of conservation of mass states that mass of the matter can neither be created nor be…

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

A:

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 grain of maize pollen has an average mass of 250 ng. How much would a mole of these pollen grains…

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

Q: How many moles are in 239 g of iron?

A: Given :- mass of iron = 239 g  To calculate :- number of moles of iron

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 24.8 g sample of water contains how many water molecules?

A: Molar mass of water = 18 gWe have 24.8 g water no of moles of water = 24.8 g18g/mol…

Q: H H Ο H C. H H H The chemical formula for the molecule shown is empirical formula is and the

A: Step 1:Chemical formula for benzene is written by counting the total number of C atoms and then…

Q: how many carbon atoms are, hyrdrogen atoms, oxygen atoms, and nitrogen atoms are in this molecule?

A: The molecule given in the question is a hydrocarbon compound which has heteroatoms (O and N).…

Q: How many grams of zinc will contain the same number of atoms as 24.6 g of copper? Express your…

A: Given weight = 24.6 g of copper

Q: What does it mean in the first compound notation?

A: Here we have to tell about what does it mean in the first compound notation? We can explain it as…

Q: How many millimoles of calcium nitrate contain 4.78 x 1022 formula units of calcium nitrate?

A: Avagadro number gives the number of atoms or molecules present in one mole of the substance. It has…

Q: Sylvanite is a mineral that contains 28.0% gold by mass. How much sylvanite would you need to dig up…

A: Given: % of gold in Sylvanite = 28.0 % Mass of gold = 87.0 g

Q: A 21.8 g sample of water contains how many water molecules?

A:

Q: The salt used to melt snow on a walkway outside a house is calcium calcium chloride and is sold in…

A:

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: (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: Calculate the number of water molecules in 500. mL of water.  Show units and significant figures…

A: The number of moles of a substance is the number of grams of a substance divided by the molar mass…

Q: How many total atoms are there in 67.9 g of water (H,O)?

A: Given: Mass of water = 67.9 g Known: Molar mass of water = 18 g/mol

Q: How do I determine the number of atoms for a given element that are in a compound?

A: Some rules should be followed to calculate Number of elements in a compound.

Q: calculate the number of moles of calcium in the sample of mass of calcium is 1.452 calcium chloride.…

A: Given Mass of calcium = 1.452 g

Q: How many formula units of NaCl are in 60.0 grams of NaCl

A: Given mass of NaCl = 60.00 g  Molecular mass of NaCl = 23 g/mol + 35.5 g/mol  = 58.5 g/mol

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

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: How many formula units of magnesium chloride are there in 5.2 grams?

A:

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: (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: How many total atoms are present in one molecule of sodium nitrate?

A: given, one  molecule of sodium nitrate NaNO3

Q: Three containers A, B, and C are filled with 32 g of oxygen gas (O2), 32 g of chlorine gas (Cl2),…

A: 32 g of oxygen gas (O2) 32 g of chlorine gas (Cl2) &  32 g of ozone gas (O3) First, identify…

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.