Element Fe Molar Mass- 55.845 g/mol 3. How many atoms are in a mole of your element? (No calculation needed) 4. If you had 14.5 grams of your element, how many moles is that? 5. If you had 14.5 grams of your element, how many atoms is that? 6. Theoretically speaking, if your element was in the gas state at STP, how many grams are 2.25 liters of your element? (Most elements are not gases at STP so this question is just theoretical) You may not use the Ideal Gas Law to solve this.

Q: How many good atoms are present in 8.3 moles of gold metal?Give your answer in a scientific notation

A: Given, 8.3 moles of gold.

Q: How many moles of B are there in a sample of B that contains 2.96×1024 atoms? moles

A: 1.Boron is represented as B 2. Avogadro's number = 6.023× 1023

Q: Example How many molecules of O, are present in 6.25 moles? (why is this a molecule and not an…

A:

Q: mass

A: moles of Compound = ( mass of Compound / molar mass of Compound )  Mass of the Compound = moles of…

Q: made-up compound: J2(QZ3)2 Determine the number of molecules of J₂(QZ3)2 in 7.2 grams of J₂(QZ3)2…

A: Given -> Weight of J2(QZ3)2 = 7.2 gram  Atomic mass of J = 19.00 g/mole Atomic mass of Q = 35.00…

Q: How many atoms are in .452 moles of carbon? 1.33 x 1024 atoms 2.72 x1023 atoms 3.27 x 1024 atoms…

A: We are having 0.452 moles of carbon , we have to calculate the number of atoms in this much moles of…

Q: How many moles of Ar are there in a sample that contains 4.35×1022 argon atoms?  How many argon…

A: The objective of the question is to find out the number of moles of Argon (Ar) in a given sample…

Q: Consider the following made-up compound: (Z3J)2Q3 Determine the number of moles of Z in 1.75 moles…

A: Given -> Mole of (Z3J)2Q3 = 1.75 mole

Q: 1. How many ATOMS of nitrogen are present in 6.98 grams of nitrogen monoxide, NO? of nitrogen atoms

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: If you have 0.5 moles of vitamin C (C6H8O6) how many grams of vitamin C molecules do you have?

A:

Q: A sample of propane, C3H8C3H8, contains 16.1 molesmoles of carbon atoms. How many total moles of…

A: Given, the sample of propane (C3H8) contains 16.1 moles of carbon atoms. In propane, the carbon…

Q: In the same amount of moles of Potassium Dichromate (7.2). How many atoms of Cr are there? a)8.67 x…

A:

Q: How many grams of iron are combined with 45.1 grams of oxygen to make the iron(II) oxide compound?

A: Balanced reaction taking place is as follows: Molar mass of Fe = 55.845 g/mol Molar mass of O2 = 32…

Q: Which pair of compounds have the same empirical formula?  CH and C2H2  C2H6 and CH  C3H8 and C3H…

A: Answer is explained below.

Q: How many moles of xenon are in 1.00 g? 1.00 g Xe =

A: given,  mass of Xe = 1.00 g   we need to calculate moles of xenon

Q: a. Charle's no. b. Avogadro's no. c. Newton s no. d. Pasca 36. How many molecules of N2O are there…

A: I mol of N2O is 44g/ mol.

Q: How many grams of Co are there in a sample of Co that contains 4.58×1023 atoms? _____grams

A: Number of atoms=.58×1023 atomsFind out mass of Co

Q: A gallon of water has a mass of 3.79 kg. How many moles of water (18.02 g/mol) is this?

A: Given : Mass of water = 3.79 Kg  And molar mass of water = 18.02 g/mol

Q: a. How many ATOMS of nitrogen are present in 1.77 moles of nitrogen monoxide? atoms of nitrogen b.…

A:

Q: Bulk platinum cost about $1158 dollars per ounce. (28.35 g = 1 ounce) how many moles of platinum…

A: Given : 28.35 g = 1 ounce Cost of 1 ounce = $1158 Calculate : moles of platinum  purchase with…

Q: How many hydrogen atoms are there in 5.0 mols of C₂H₂? 1.8 x 1025 atoms 3.6 x 1024 atom's 3.0 x 1024…

A:

Q: What would you multiply "atoms of calcium" by to get the units "moles of calcium"? atoms Cax = moles…

A:

Q: 16 How many moles of oxygen atoms are in 7.58 moles of V(SO4)3?

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

Q: Is the subscript of an element the same as its number of moles? Does the subscript mean how much…

A:

Q: 4. How many atoms of oxygen are in 10.18 mol of tetrathionate (S40,2) ion? O 3.677 x10 atoms O 6.128…

A: This question is very simple example of mole concept. First thing to calculate the number of oxygen…

Q: What is your element? Neon  2. What is the molar mass of your element? 3. How many atoms are in a…

A:

Q: A sample of oxygen has a mass of 25.2 grams. How many O atoms are there in the sample?  atoms How…

A: Calculation given as follows

Q: Below are 3 student opinions, which student is correct and why?

A:

Q: 1. How many ATOMS of sulfur are present in 4.11 grams of sulfur dioxide, SO₂? 2. How many GRAMS of…

A: 1. The mass of sulfur dioxide given is 4.11 g.To find the atoms of sulfur.2. The molecules of sulfur…

Q: How many atoms arc in 157 grams of H?

A: Number of mole (n) of substance is calculated by dividing mass of substance (m) to molar mass (M) of…

Q: how many atoms are present in a 1.48 micromol

A: 1 mole of any substance contains Avogadro number of entities  Avogadro's number = 6.022 x 1023…

Q: Mass, S s of 32.07 g).

A: Number of moles is calculated by dividing the given mass with molecular mass. Given molecular mass…

Q: Using the Planet Mayedup Periodic Table and the formula Ct(Hnls3)2 determine the molar mass of the…

A: A hypothetical question based on periodic table, which is to be accomplished.

Q: A compound with the empirical formula SH3 has a molar mass of about 175 g/mol What is the correct…

A:

Q: Element Molar Mass (/ 14.01 16.00 24.31 32.07 55.85 1. The molar mass of sulfur is 32.07 s/mol. This…

A:

Q: How many moles of C are there in a sample that contains 6.54×1022 carbon atoms? How many carbon…

A: The objective of the question is to find out the number of moles of carbon in a given sample and the…

Q: On the planet Kracalac, in another solar system, argon has three naturally occurring isotopes as…

A:

Q: Use compound formulas to determine element composition. A sample of pentanol, C5H120, contains 1.69…

A:

Q: How many moles of O are in 26.23 moles of Al(C 2 H 3 O 2 ) 3

A: Given :- 26.23 moles of Al(C2H3O2)3  To calculate : number of moles of O

Q: How many moles of V are there in a sample of V that contains 4.00 moles atoms

A: number of moles = give no. of atoms / Avogadro number Avogadro number = 6.022 X 1023 mol-1 Number…

Q: A is asking If the carbon in the pencil weighs 1.50 grams, how many carbon atoms does the pencil…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How many atoms of carbon are in 4.6 grams of C₂H5OH? A) 1.0x10-1 carbon atoms B) 1.2x1023 carbon…

A:

Q: An unknown compound contains only carbon, hydrogen, and oxygen (CxHyOz). Combustion of 6.50 g of…

A: Given :  Mass of water = 3.90 g  Mass of CO2 = 9.53 g  Mass of compound = 6.50 g

Q: A sample of laughing gas (N2O) has a mass of 2.20 g. How many moles of N2O is this?

A: A sample of laughing gas (N2O) has a mass of 2.20 g.  We have to find number of moles of N2O.

Q: Prevacid is used to treat gastroesophageal reflux disease (GERD). The chemical formula of Prevacid…

A: Given, Prevacid is used to treat gastroesophageal reflux disease (GERD). The chemical formula of…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.