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Molar calculations
Page 3
Questions (158)
HOW MUCH 1 MOLE HCL IS REQUIRED TO MAKE 250ML OF 0.1 MOLE HCL?
2 answers
asked by
NANCY
859 views
How many moles of oxygen gas (O2) are in 448L at STP (273K and 1 atm of pressure)?
2 answers
asked by
kim.
858 views
A solution of CaCl2 is prepared by dissolving 1.004 g of the solid in approximately 30 mL of water. How many moles of CaCl2 does
2 answers
asked by
malika
864 views
Calculate the mass of HCl required to prepare 2.5 liters of a 0.08 molar solution of HCl.
2 answers
asked by
alexandrea
814 views
How many molecules are in 0.923 mol of selenium tetrabromide?
3 answers
asked by
Ricky
757 views
How many mole of KClO3 are needed to make 320g O2
2 answers
asked by
Anonymous
773 views
How many moles of lithium carbonate are contained in 400 mL of a lithium carbonate solution with a concentration of 0.015 mol
3 answers
asked by
Kareena Kapoor
770 views
You are supposed to add 0.1 mol of a substance with molecular weight = 354.9 to 1 liter of water. How much should you add?
3 answers
asked by
Leanna
752 views
Calculate the no.of moles
(a)3.011 X 10power 23 atoms of He (b)1.505 X 10power23 of Co2 (c)6.022 X 10power23 atoms of Na (hint
2 answers
asked by
Anonymous
742 views
How many grams of H2SO4 are contained in 4.5 L of .30N (N standing for normality) sulfuric acid?
Help would be much appreciated.
1 answer
asked by
Daniel
712 views
How many mL of 0.416 M of HCl are needed to dissolve 8.68 g of BaCO3?
2HCl(aq)+BaCO3(s)=BaCl2(aq)+H2O(l)+CO2(g)
2 answers
asked by
christa
724 views
Find the mass of water (H2O) needed to react with 150 grams of potassium (K)
2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the
1 answer
asked by
Teresa
720 views
Five grams of sodium are combined with unlimited bromine. How many moles of bromine are used up? How many liters of bromine
2 answers
asked by
Anonymous
688 views
Calculate the number of carbon atoms in 0.75 L of acetone (CH3COCH3). (density=1.3g/mL and boiling point=48.5 degrees)
1 answer
asked by
Erin
668 views
A mixture of 8.95 g of Cl2 and 18.0 g of NO2 and an undetermined amount of SO2 occupies a volume of 22.4 liters at 760 mm Hg and
2 answers
asked by
marie
660 views
1. What is the molar of a sodium bicarbonate solution prepared from 150 g of NaHCO3 in 150 mL solution?
2. What mass of glucose
2 answers
asked by
Anonymous
678 views
calculate the numbers of moles of sodium thiosulfate (Na2S2O3) and hence the moles of S2O3^2- ions present in the volume of 43mL
2 answers
asked by
Yul
664 views
What mass of solid potassium sulfate, K2SO4, is used to make up exactly 100.0cm^3 of 0.100 mol/dm^3 SO4^2-?
This should be a very
2 answers
asked by
Autumn
648 views
A sample of sodium sulfate, Li2SO4, contains 6.78 x 10^23 formula units.
How many moles of Li2SO4 are there in the sample? How
4 answers
asked by
Sam
646 views
A)What mass of silver chloride can be produced from 1.33 of a 0.207 solution of silver nitrate?
I got this one, its 39.4 g B)The
2 answers
asked by
Kristi
636 views
How many osmoles are there in 6.00 ML of a 6.0 N mg3(po4)2 solution?
2 answers
asked by
Nicole
586 views
What mass of KCl (MM = 74.55 g/mol) is required to make 550 mL of a 0.250 M solution?
2 answers
asked by
Cassie
558 views
How many sulfate ions are there in 2.500 mL of 5.0 x 10-15 moles of Cr2(SO4)3?
2 answers
asked by
Zac
549 views
Hey, I need help finding out how many moles of CO2 is produced from this reaction. Any help is appreciated, thanks.
Mass of empty
2 answers
asked by
Matti
579 views
How many moles of H atoms are there in 21.66 g of Mg(OH)2?
What is the mass of F (in g) in 8.03 x 1023 BF3 molecules
4 answers
asked by
Shanon
556 views
if you have 0.454 grams of sulfur trioxide, how many moles does this represent? how many molecules? how many oxygens atoms?
2 answers
asked by
melinda
564 views
A beaker contains 199 mL of NaOH with a concentration of .100 mol/L. Calculate the number of moles of NaOH
2 answers
asked by
Anonymous
536 views
How many moles of dichloromethane (CH2Cl2) would be produced if we doubled the amount of chlorine, but still had the same
2 answers
asked by
Shawn
543 views
If it takes three "breaths" to blow up a balloon to 1.2 , and each breath supplies the balloon with 0.060 moles of exhaled air,
4 answers
asked by
George
534 views
How many molecules are in 105 g of sugar
(C12H22O11)? Answer in units of molec
2 answers
asked by
lily
507 views
if you have 100 mg of CaCl2, how many moles of Cl do you have
2 answers
asked by
David
493 views
Given the following equation: NH3 + NH3 +O2 �¨ NO + H2O
Calculate the number of grams of ammonia needed to form 40.12 moles of
4 answers
asked by
peter
479 views
Calculate the volume of 2.45 M NaI that would be needed to precipitate all of the Hg+2 ion from 185 mL of a 2.44 M Hg(NO3)2.
AND
1 answer
asked by
Marsha
480 views
calculate the number of oxygen atoms in 0.25 mol fluoroacetic acid (C2H3O2F) show work if possible
1 answer
asked by
lisa
466 views
(b) How many moles of HCl are present in 35.0 mL of a 4.50 M solution of nitric acid?
1 answer
asked by
Anonymous
468 views
How many molecules are in 75 L of F2 SATP
1 answer
asked anonymously
11 views
H2SO4 is labeled 93.2% and density 1.94g/cm3. Find moles in H2SO4?
1 answer
asked by
chris
468 views
Calculate the number of moles of Ca(OH)2
(aq) needed to react completely with 125 mL of 6.00 M HCl(aq). It doesnt give any
1 answer
asked by
jim
463 views
How do I calculate the amounts of Na2SO4 and CaCl2 that I need to create a solution of CaSO4 at 9 grams/Liter concentration?
1 answer
asked by
Kato
477 views
when 2.31 moles of sulfur hexafluoride are synthesized from te elements, how many grams of fluorine were used PLEASEEEEE HELPPPP
1 answer
asked by
Em
472 views
Part 1:
Each molecule of NO2, nitrogen dioxide, consists of 1 atom of N and 2 atoms of O. If you have 0.155 g. of NO2, how many
3 answers
asked by
Summer
464 views
How many molecules of hydrogen gas are produced by the reaction of tin with 20.0 L hydrogen mono fluoride at STP
1 answer
asked by
Bob
440 views
How many grams of HCI are produced when 15.4 mol H2O react?
1 answer
asked anonymously
35 views
In chemistry class, Carlos calculated the number of molecules in 100 moles. The calculator displayed the number 6.02E25. What is
1 answer
asked anonymously
49 views
Calculate the number of moles in 25cm of 0.2M of. Sodium hydroxide
1 answer
asked by
Gloria
27 views
3mole of calcium and 3mole of oxygen react then .
How many moles of calcium oxide produce? What mole reactant remains unreacted ?
1 answer
asked by
Sadiiq
39 views
In chemistry class, Carlos calculated the number of molecules in 100 moles. The calculator displayed the number 6.02E25. What is
1 answer
asked anonymously
11 views
In chemistry class, Carlos calculated the number of molecules in 100 moles. The calculator displayed the number 6.02E25. What is
1 answer
asked by
william Alexaner
49 views
How many moles of hydrogen atoms are there in 2.50 mol of C6H12O6?
a) 2.50 b) 30.0 c) 1.51 × 1024 d) 1.81 × 1025
1 answer
asked anonymously
16 views
A sample of H2O contains 7.2 x 10 24 atoms. How many moles of water are in this sample?
Responses 6.02 moles 6.02 moles 11 moles
1 answer
asked anonymously
29 views
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Parent Categories (11)
Atomic Structure
Atomic Structure and Mass
Atoms and Molecules
Chemical calculations
Chemical Compounds
Chemical Equations and Stoichiometry
Chemical Reactions
Chemistry
Gases
Molecules and Atoms
Stoichiometry