7 Answered Questions for the topic Mole

02/18/22

What is the weight of a specimen (MW=56.1) in grams if the molarity of a 500 mL solution is 1.5 M?
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11/25/21

C8H18+O2=O2+H2O Stoichiometry
C8H18+O2=O2+H2O a. A liter of gasoline has a mass of about 702 g. What mass of carbon dioxide is produced when 2 liters of gasoline burns? b. How many moles of water will be produced from 1 mole... more
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02/01/21

My question is about chemistry , it says calculate the number of atoms of Cl in 0.0425h of C2H4Cl2
Can you Solve it step by step please ? I have a question about a step ,I want to get the number of moles of Cl , so I need to divide it’s mass(g) by its molar or molecular mass , will the molar... more
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Mole Chemistry

11/23/20

I NEED HELP PLEASE! :((((
1. How many moles of neon atoms are there in 2.0 x 10^23 atoms of neon?2. How many carbon atoms are there in 0.50 mol of C?3. How many hydrogen atoms are there in 4.0 mol of H2O?
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05/19/20

Please help! I cannot figure out the steps of going from mass of Hydrogen to moles of carbon in ethanol.
A sample of ethanol (C2H6O) contains 3.024g of hydrogen. How many moles of carbon are in the sample ? Molar Mass of ethanol (C2H6O)=46.07g/mol
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03/03/20

How many moles are in 8.6x10^26 molecules of H2O expressed in the correct number of significant figures?
A. 1,400 mil h2oB. 5.2x10^50 mol h2oC. 1.4 mol h20 D. 1.4x10^51 mol h2o
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Mole

04/29/15

compound contains 3.2% of oxygen the minimum mol weight of the compound is?
pls also explain how you solved this problem.
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