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July 24, 2014

# Search: How many oxygen atoms are in 2.90g of quartz?

Number of results: 5,277

chem
How many oxygen atoms are in 1.90g og quartz (SiO2)? ok so 1.90g SiO2(1mol/60.0843g SiO2)(2 O mols/1 mol SiO2) (6.022*10^23atoms/1mol) what am i doing wrongg???
September 20, 2008 by Natash

Chemistry
How many oxygen atoms are in 3.20g of quartz?
September 28, 2011 by Kristi

chemistry
how many oxygen atoms are in 1.60g of quartz - SiO2? how do you figure out atoms to grams and visa versa? the weight of 1 SiO2=60.0848g/mol. please help
October 1, 2007 by leo

chem
one atom of silicon can properly be combined in a compound with A. one atom of chlorine B. two atoms of oxygen C. three atoms of hydrogen D. four atoms of calcium B. two atoms of oxygen (as in SiO2.. quartz and sand) Ther is also a compound SiO. It is used for optical coatings...
August 5, 2005 by alf

chemistry
Hi, how many moles does 0.225g of oxygen atoms represent? If 1 mole of oxygen atoms represents 16.0g? Thanks mols = grams/molar mass. thot so. Thanks for confirming ;) This is right for oxygen atoms, however, oxygen in the atmosphere is O2, and we normally think of a mole of ...
February 5, 2007 by bertie

Math
Glucose is a common type of sugar. One glucose molecule is made up of 24 atoms. 1/4 of the atoms are carbon, 1/2 are hydrogen atoms, and 1/4 are oxygen atoms. Part A: How many oxygen atoms are there in 50 atoms? Part B:Explain how you found your answer for Part A
April 19, 2014 by Sherman

math
What is one mole of H2O composed of? A. 2 hydrogen atoms and 1 oxygen atom B. 2 × (6.02 × 1023) hydrogen atoms and 6.02 ×1023 oxygen atoms C. 3 atoms of water and 2 oxygen molecules D. one half of a molecule of peroxide I say A
November 8, 2012 by shana

algebra
please is this correct? write a direct variation equation that relates atoms of O oxygen to atoms of hydogen H Mary combined 8 atoms of hydrogen and 4 atoms of oxygen to get 4 molecules of water is this equation correct? O + 2H = WM
December 16, 2011 by ann

chemistry
Rust contains an iron-oxygen compound in which there are three oxygen atoms for each two iron atoms. In this compound, the iron to oxygen mass ratio is 2.325:1. Another compound of iron and oxygen contains these elements in the ratio of 2.616:1. What is the ratio of iron to ...
August 23, 2011 by sam

Physics
How many grams of water (H_2O) have the same number of oxygen atoms as 1.0 (mol} of oxygen gas? atomic mass of H is 1 and O is 16, so H2O has a molar mass of 18. Oxygen gas is O2, with a molar mass of 32. So 1.0 mole of oxygen gas has 6.02x10^23 molecules = 12.04x10^23 oxygen ...
November 18, 2009 by ana

Science
How many atoms of aluminum can be produced by the decomposition of 47.1 g of Al2O3? (Hint: Write and balance the equation first.) The products are oxygen gas and aluminum metal (Al) A) 1.11 X 10^24 Al atoms B) None of these C) 1.39 X 10^23 Al atoms D) 5.56 X 10^23 Al atoms E) ...
November 10, 2010 by Tim

Intro. Chemistry
Based on the law of definite composition, Dalton proposed that one atom of carbon combines with two atoms of oxygen to always produce CO2. Similarly,he proposed that two atoms of hydrogen combine with one atom of oxygen to give a molecule of H2O. Finally,Dalton reasons that ...
September 17, 2010 by Cliff

Science URGENT
Write down the number of hydrogen and oxygen atoms of the following H2O 3H2O 5H2O Write down the number of carbon, hydrogen and oxygen atoms: C6H12O6 2C6H12O6 10C6H12O6 Write down the number of molybdenum, oxygen and hydrogen atoms: Mo(OH)4 3Mo(OH)4 5Mo(OH)4 Write the Number ...

math
the ratio of hydrogen atom to oxygen atoms in water is 2:1 if an amount of water contains 341 trillion atoms of oxygen how many hydrogen atoms are there? how would i do this?
October 21, 2010 by courtney

chemistry
how many moles of oxygen atoms does 1.2x10^25 diphosphorus pentoxide molecules have? hwo many oxygen atoms are in 1.25 mol sulphur trioxide? i dont understand these
December 4, 2008 by lisa

Chemistry
Write the chemical formulas for the compounds containing each of the following: a) one calcium atom for every two iodide atoms. b) two nitrogen atoms for every four oxygen atoms. c) one silicon atom for every two oxygen atoms. d) one zinc atom for every two chlorine atoms
July 1, 2010 by Melissa

Chemistry
Write the chemical formulas for the compounds containing each of the following: a) one calcium atom for every two iodide atoms. b) two nitrogen atoms for every four oxygen atoms. c) one silicon atom for every two oxygen atoms. d) one zinc atom for every two chlorine atoms
July 1, 2010 by Melissa

physics
An oxygen molecule consists of two oxygen atoms whose total mass is 5.3 x 10-26 kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is 1.82 × 10-46 kg·m2. From these data, estimate the effective distance between ...
January 2, 2012 by Joe

2CuSO4 what does the information above represent? (A) two molecules made of one copper atom, one sulfur atom, and four oxygen atoms. (B) two elements made of one copper atom, one sulfur atom, and four oxygen atoms. (C) two copper atoms, one sulfur atom, and four oxygen atoms...
April 21, 2010 by monica

Physics
An oxygen molecule consists of two oxygen atoms whose total mass is 5.3 x 10^-26 kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is 1.9 x 10^-46 kg*m^2. Estimate, from these data, the effective distance between...
April 19, 2010 by Alley

Math
Which is a molecule of phosphoric acid contains 3 atoms of hydrogen to every 4 atoms of oxygen. Could a compound containing 16 atoms of oxygen and 12 atoms of hydrogen be phosphoric acid? Explain. Mr.Lee has 3/10 of his gross salary deducted for taxes. If Mr.Lee makes \$900 a ...
January 6, 2013 by Danny

chemistry
Find the number of K atoms, C atoms, and O atoms in 95.5g of K2Cr2O7. (Potassium 2, Chromium 2, Oxygen 7).
February 15, 2010 by Jack

Chemistry
How many oxygen atoms are in a) 3.21 x 10^22 molecules CH3OH b) .250 mol C6H12O6 Is it a) 3.21 x 10^22 atoms b) 9.03 x 10^23 atoms
May 19, 2013 by K

biology
Choose the total number of each item requested below. 4C6H12O6 Carbon atoms Hydrogen atoms Oxygen atoms Molecules
October 29, 2012 by Anonymous

kayla
A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?
September 2, 2008 by math

math
A sugar molecule has twice as many atoms of hydrogen as it does oxygen and one more atom of carbon that oxygen. If a sugar molecule has a total of 45 atoms, how many are oxygen and how many are hydrogen?
September 2, 2008 by kayla

physics
Oxygen molecules contain two oxygen atoms, and carbon dioxide molecules contain one atom of carbon and two atoms of oxygen. How does the total number of molecules in 1 liter of oxygen compare with the total number of atoms in 1 liter of carbon dioxide if they are both at the ...
April 24, 2011 by Loui

MATH
a molecule of sodium carbonate contains 2 atoms of sodium to every 3 atoms of oxygen. could a compound containing 12 atoms of sodiumand 15 atoms of o2 be na carbonate explai
March 4, 2014 by AMY

Science
By counting the number of H atoms and oxygen atoms in the sucrose. what is the ratio of hydrogen to oxygen? What process would this be called if you had a starch like above and added water to it so it broke down into the simple sugars the starch is made of?
October 7, 2013 by Kaylyn

chemistry
How many moles of oxygen are there in 23.5g of H2SO4? (numbers are subscripts)How many oxygen atoms? How many grams of oxygen?
February 15, 2010 by Ralph

physical science
The oxygen atoms of a water molecule are most attracted to 1: Other oxygen atoms, negatively charged ions, positively charged ions or nonpolar molecules?
November 6, 2007 by palmer

biology
What are the step by step in finding the answer for this? 4C6H1206 carbon atoms: Hydrogen atoms: Oxygen atoms: Molecules:
September 19, 2012 by Sally

Earth Science
Quartz is made up of___________ a.)silicon and oxygen b.)iron and oxygen c.)silicon and carbon d.)iron and silicon
January 12, 2013 by ?

physics
A water molecule consists of an oxygen atom and two hydrogen atoms. Oxygen has a mass of 16 atomic units (u) and each hydrogen has a mass of 1 u. The hydrogen atoms are each at an average distance of 96 pm ( 96 x 10 -12 m) from the oxygen atom, and are separated from one ...
October 13, 2008 by Samuel

Math
A molecule of water is made up of 2 atoms of hydrogen and 1 atom of oxygen. What percent of the atoms of a water molecule is oxygen?
March 14, 2011 by Sammy

science
an oxide of arsenic = 0.927g 76% arsenic and 24% oxygen calculate the mass of oxygen that combines with one mole of arsenic atoms to form the oxide of arsenic. How many moles of oxygen atoms does this mass represent? Posted by Kirsty on Tuesday, February 6, 2007 at 3:50pm. an ...
February 6, 2007 by Kirsty

physics
Quartz has a refractive index of 1.54. If light from a HeNe laser impinges on an air/quartz interface at an angle of 22.5 degrees, what is the angle of refraction?
April 6, 2011 by noel

chemistry
Sulfer trioxide, SO3, is made industrially in enormous quantities by combining oxygen and sulfer dioxide, SO2. What amount (moles) of SO3 is represented by 1.00 kg of sulfur trioxide? How many molecules? How many sulfer atoms? How many oxygen atoms?
September 12, 2010 by Sweetie

chemistry
a carbon containing 3 atoms of carbon and 8 atoms of hydrdren combinend in reactionwith oxygen molecules the 2 end products of this eqation are carbon dioxide co 2 an water what element should i look at first inn this oxygen hydrogen carbon or dioxide and wen finish balancing ...
May 12, 2008 by andrea

science
1.   Which statement is true about the following molecule?  (1 point)The molecule is composed of four atoms.The molecule contains oxygen atoms.The molecule is water.The molecule represents an element. 2.   A(n) _____________ is made up of two or more different atoms that are ...
February 27, 2014 by cIATA

Science
How many Atoms are in a Water Molecule H2O...two atoms of hydrogen, one of oxygen
September 14, 2006 by Mike

science
What is the ratio of sulfur atoms to oxygen atoms in SO2?
November 17, 2007 by Colin

chemistry
are these right? How many atoms are there in 1.3x10^22 molecules NO2? atoms=(1.3x10^22 molecules NO2) x (2atoms/1molecule) = 2.6x10^22 atoms NO2 A 5.0g sample of O2 is in a container at STP. How many atoms of oxygen are in the container? atoms = (5.0g O2) x (1mol/32g)x (6....
December 14, 2008 by s

chemistry
Hassium (III)oxalate contains 2.25 mol of Carbon atoms. What is the number of moles of oxygen atoms in the sample?
October 25, 2012 by Carina

Chemistry
4Fe + 3O2 = 2Fe2O3 So in math book it say " You can interpret this equation in terms of representative particles by saying that four atoms of iron react with three molecules of oxygen to produce two formula unit of iron(iii) oxide" Why it say that there are 4 atoms of iron / 3...

Chemistry
A compound containing 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide and water. What element should you look at first in balancing this equation? A. oxygen B. Hydrogen C. ...
November 7, 2009 by William

Physics
How many grams of water (H_2O}) have the same number of oxygen atoms as 1.0mol of oxygen gas?
November 16, 2009 by ana

Physics/ can Dr. help me
How many grams of water (H_2O) have the same number of oxygen atoms as 1.0 (mol} of oxygen gas?
November 18, 2009 by ana

A certain molecule contains twice as many atoms of hydrogen as oxygen and one more atom of carbon than hydrogen. If there are 31 atoms altogether in the molecule. how many atoms of carbon are there?
October 19, 2010 by steph

Chem
How many moles of hydrogen and oxygen are in 2 moles of water? water: h2o # of molecules = (6.022 x 10^23)(2)= 1.2044 x 10^23 # of hydrogen atoms = (1.2044 x 10^23)(2)= 2.4088 x 10^24 # of oxygen atoms = 1.2044 x 10^24 Did I do this correctly? What do I do about significant ...
July 6, 2009 by Lena

CHM
Which of the following events are not examples of a chemical reaction? atoms of gold turning into atoms of iron conversion of methane, which contains carbon and hydrogen, and oxygen into carbon dioxide and water <<<? the rusting of iron in a humid atmosphere ...
January 27, 2013 by Jakey

Conceptual Physical Science
What is the approximate mass of an oxygen atom in atomic mass units? What is the approximate mass of two oxygen atoms? How about an oxygen molecule?
July 10, 2010 by Laticia

Chemistry
I am not sure if I answered the question below correctly and if I need all the information in my answer. Do I need all of this information? Why does the simplest ketone have 3 carbon atoms and no less? The simplest ketone has three carbon atoms and no less because of the ...
February 16, 2008 by Megan

chemistry
36 colored paper clips (12 each of 3 different colors) 1.Each paper clip represents a single atom. Designate a different color of paper clip to represent atoms of oxygen (O), hydrogen (H), and carbon (C). Makes two molecules each of hydrogen (H2) and methane (CH4) and six ...
August 1, 2008 by kayla

AP Biology
During aerobic respiration, glucose is broken down to form several end products. Which end products contain the carbon atoms from glucose? The hydrogen atoms from glucose? The oxygen atoms from glucose? The energy stored in the glucose molecules?
November 11, 2007 by Alex

Ap Biology
During aerobic respiration, glucose is broken down to form several end products. Which end products contain the carbon atoms from glucose? The hydrogen atoms from glucose? The oxygen atoms from glucose? The energy stored in the glucose molecules?
November 1, 2009 by Marlen

chemistry
what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25 atoms w f) 1 atom Au can you please explain a and b to me then i'll come back later and see if i did the rest right? Thanks in advance
February 23, 2008 by john

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation? Is the answer a.b.c or d? ...
July 4, 2008 by Mickey

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation? Is the answer a.b.c or d? ...
July 4, 2008 by MV

chemysteryyy!!!!
Rubbing Alchol often contains propanol, C3H7OH. Suppose that you have an 85.9g sample of propanol. a) Howmany carbon atoms are in the sample? b) Howmany hydrogen atoms are in the sample? C)Howmany oxygen atoms are in the sample? PLEASE!! explain the steps to me...I don't know ...
December 26, 2012 by Kristy

chemistry
How many atoms are in 3.14 mol of methane (CH4)? A. 7.56 x 1023 atoms B. 7.56 x 102 atoms C. 7.56 x 104 atoms D. 7.56 x 1024 atoms D
November 10, 2012 by Drew

chemistry
what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25 atoms w f) 1 atom Au can you please explain a and b to me then i'll come back later and see if i did the rest right? Thanks in advance it needs to ...
February 23, 2008 by john

chemistry
what is the mass in grams? a) 3.011 x 10^23 atoms F b)1.50 x 10^23 atoms Mg c)4.50 x 10^12 atoms Cl d)8.42 x 10^18 atoms Br e) 25 atoms w f) 1 atom Au can you please explain a and b to me then i'll come back later and see if i did the rest right? Thanks in advance it needs to ...
February 23, 2008 by john

chemistry
a compound containing 3 atoms of carbon and 8 atoms ofhydrgen is combined in a reaction with oxegyn molecules the two end products of this eqation are carbon dioxide co 2 and water what elemement should i look at first in balancing this eqation oxygen hydrgen carbon or dioxide...
May 12, 2008 by andrea

Chemistry
Two beakers were used in an experiment each with 100g of water at 30 degrees C. To the first beaker, 90g of NaNO3 was added. To the second beaker, 90g of KNO3 was added. (a)Which beaker had the salt precipitate out (settle to the bottom) and how much? (b) Which beaker could ...
April 28, 2008 by Toni Jones

chemistry
calculate number of atoms in 4.67 mol of Ca(NO3)2 I got: 2.81 X 10^24 C atoms or should it be 28.11 x 10^23 C atoms? 5.62 X 10^24 N atoms or should it be 9.34 x 10^23 N atoms? 1.69 x 10^25 O atoms....but are you allowed to do ^25 or should it be 168.7 X 10^23 O atoms I'm ...
May 23, 2008 by Sarah

Chemistry
A few questions...how many grams are in 48.7x10^24? I don't know how to convert atoms to grams. I can do moles to grams or moles to atoms, but not atoms to grams. My other problem is how do you convert moles to moles as in "how many moles of Cu2O are needed to produce 2.3 ...
April 20, 2009 by Angeline

gen.science
A compound containing 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide and water. Which chemical or element will have the largest number of moecules?
June 21, 2010 by charlie

Chem
Superscript 15 How many moles of Pb is 9.3 X 1015 atoms of pb? 1 mol of Pb atoms will contain 6.02 x 10^23 atoms of Pb. So 9.3 x 10^15 atoms x (1 mol/6.02 x 10^23 atoms) = ? note how the unit "atoms" cancel leaving mol and that is the unit we want. thanks What is the molar ...
February 6, 2007 by Chris

Physics
The refractive index of a medium changes with the wavelength of incident light. Typically, the shorter the wavelength the larger the refractive index. Fused quartz has a refractive index of 1.47 for indigo light of 400 nm in wavelength, and a refractive index of 1.46 for green...
March 20, 2010 by Samantha

chem
what happens when NaCl(s) is dissolved in water? (1)Cl-ions are attracted to the oxygen atoms of the water (2)Cl-ions are attracted to the hydrogen atoms of the water. (3)Na+ions are attracted to the hydrogen atoms of the water. (4)no attractions are involved; the crystal just...
February 13, 2011 by Tina

Chemistry
what happens when NaCl(s) is dissolved in water? (1)Cl-ions are attracted to the oxygen atoms of the water (2)Cl-ions are attracted to the hydrogen atoms of the water. (3)Na+ions are attracted to the hydrogen atoms of the water. (4)no attractions are involved; the crystal just...
February 13, 2011 by Tina

Physics
Exploration 2: the Effect of Mass on Gas Behavior Procedure 1. Set the temperature at 500 K. Maintain this temperature throughout this Exploration. 2. Select Hydrogen gas from the list box. Record the most probable particle speed and the average particle speed in Table 2. Gas...
July 19, 2012 by Alfrieda

chemistry
Do 65 grams of oxygen and 44 grams of carbon contain equal number of atoms? Calculate the number of atoms?
February 8, 2011 by twynna

Chemistry
A compound containg 3 atoms of carbon and 8 atoms of hydrogen is combined in a reaction with oxygen molecules. The two end products of this equation are carbon dioxide (CO2) and water. What element should you look at first in balancing this equation?
July 4, 2008 by MV

general science
A Compound Containing 3 Atoms Of Carbon And 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The Two End Products Of This Equation Are Carbon Dioxide And Water. What Element Should You Look At First In Balancing This Equation?
August 9, 2009 by jennifer

physics
A ray of light has an angle of incidence of 30.4 degrees on a block of quartz and an angle of refraction of 20.7 degrees. What is the index of refraction for this block of quartz?
February 18, 2011 by Maria

Physics
A ray of light has an angle of incidence of 30.4 degrees on a block of quartz and an angle of refraction of 20.7 degrees. What is the index of refraction for this block of quartz?
February 24, 2011 by Maria

science
Hydrogen burns with blue flame.Oxygen support burning when two atoms of Hydrogen combines with one atom of oxygen forms water this water put off the flames why?
August 26, 2011 by duppala

Chemistry
A sample of sucrose, C12H22O11(s),contains 0.16 mol of oxygen, atoms(O). a.) What amount in moles of sucrose is in the sample? b.)How many atoms of carbon are in the sample?
April 8, 2013 by Lg

chemistry
Calculate the mass, in grams, of each of the following. a) 1.2×10^23 gold atoms b) 2.78×10^22 helium atoms c) 2.0×10^23 lead atoms d) 7.6×10^21 uranium atoms
September 10, 2010 by Mely

organic
2000gram ya 2kg caco3 me mole se atoms se molecuies atoms se proton atoms se neutron atoms se eiectron
July 16, 2012 by rishi

Chemisty
Identify the limiting and excess reagent for each of the following scenarios involving the formation of silicone dioxide, SiO2. If you could just get geared in the right direction that would be wonderful. I am just a bit confused with this question. Thank you. a. 2 atoms of ...
February 29, 2012 by Danielle

Physics
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 14.8 kg and 1.89 × 10-3 m3. The density of gold is 19 300 kg/m3, and the density of quartz is 2660 kg/m3. Find the mass of the gold in the rock.
November 22, 2010 by Mike

physics
A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass and volume of the rock are, respectively, 13.3 kg and 3.56 × 10-3 m3. The density of gold is 19 300 kg/m3, and the density of quartz is 2660 kg/m3. Find the mass of the gold in the rock.
March 10, 2013 by chel

chemistry
How many atoms are in 1.14 mol of propane (C3H8)? A. 7.55 x 1023 atoms B. 7.77 x 1024 atoms C. 7.55 x 1024 atoms D. 7.55 x 1030 atoms C
November 10, 2012 by Drew

science
Chemical formula : C12,H22,O11 How many carbon atoms are in 1 molecule of sugar? How many hydrogen atoms are in 1 molecule of sugar? How many oxygen molecules are in 1 molecule of sugar?
October 31, 2011 by Ashlie

Chemistry
Question 1. (SEE QUESTION 2 ) A Compound Containing 3 Atoms Of Carbon & 8 Atoms Of Hydrogen Is Combined In A Reaction With Oxygen Molecules. The 2 End Products Of This Equation Are Carbon Dioxide &water. What Element Should You Look At 1st In Balancing This Equation? Choose a....
July 8, 2008 by Mickeyv

Chemistry
I recently performed an experiment in which magnesium oxide formed. I have to find out the simplest whole number ratio of Mg atoms to O atoms. How do I go about doing this? * Chemistry - DrBob222, Tuesday, October 13, 2009 at 11:19pm Mass MgO - mass Mg initially = mass oxygen ...
October 14, 2009 by Anonymous

Chemistry
Methane gas (carbon tetrahydride) reacts with oxygen by combustion: CH4 + 2O2 -> CO2 + 2H2O a.)How many moles of methane are needed to produce 3.5*10-4 moles of carbon dioxide? b.)How many moles of oxygen are needed to react form the 3.5*10-4 moles of carbon dioxide? c.)How...
November 3, 2013 by Kelsi

science
Is this balanced correctly NaOH + H2SO4 = Na2SO4 + H2O? In this equation, Sodium (Na) and Hydrogen (H) atoms are not balanced. There are 2 atoms of Sodium (Na) on Right Hand Side, so we can multiply NaOH with 2 on Left Hand Side. This balances the Sodium (Na) atoms. Now, ...
July 11, 2014 by duane

Chem
How many oxygen atoms are in 5.23 g of C6H12O6
June 2, 2011 by James

chemistry
The sodium and hydroxide atoms separate into ions and the positive sodium ions are attracted to the oxygen atoms and the hydroxides are attracted to positive charged part of water, the hydrogen making another molecule.
May 1, 2011 by johnny

chemistry
calculate the # of oxygen atoms in 30 grams of CaSO4 #O atoms= 4 times the moles of CaSO4 * avagradoo's number. How many moles of CaSO4 is in 30 g? there is 0.22 mol in 30 grams of CaS)4
June 22, 2006 by Hawk

chemistry
An unknown organic compound that contains carbon,hydrogen and oxygen undergoes a combustion analysis. What happen to the carbon atoms and hydrogen atoms in the compound,assuming that the combustion goes to completion?
October 18, 2011 by Anonymous

Bio
What happens to the oxygen atoms from glucose?
November 12, 2007 by Anonymous

chemistry
How many oxygen atoms in 9 grams of sugar?
August 31, 2011 by sabaah

chemistry
how many oxygen atoms are in 0.25 mole of SO3 ?
March 28, 2011 by shellywo

Chemistry
how many atoms of oxygen are present in 30 g of glucose
May 10, 2012 by Susan

Chemistry
how many atoms of oxygen are present in 30 g of glucose
May 14, 2012 by Susan

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