Ask
your own question, for FREE!
Chemistry
18 Online
OpenStudy (anonymous):
An unknown solution water sample of 20.00ml requires 25.55ml of the above standardized EDTA solution for complete reaction what is the mass percent of ca2+ present in the sample assume the density of water is 1.00g/m Please help very urgent medals will be given !!!
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (cuanchi):
the soichiometry of the reaction is 1:1 Ca+2 + EDTA-4 ------> CaEDTA-2 You need to know the concentration of the bove standardized EDTA solution, and then use the V1C1=V2C2 to calculate the moles of Ca in your sample. Then you have to express your results as gCa/100g of water.
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
Arizona:
can someone check out my essay i'm doing in my senior English class about the McD
IcedShots:
I was wondering, is there anybody on here around my age? Im turning 15 on December 1 ud83dude0a.
stxandrew1214:
I lwk like a junior need help to talk with her and get to know her but I think sh
thatonenerd:
Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
letrasbonitasz:
Typography plays an important role in digital communication. Different font styles can make social media profiles, usernames, messages, and creative designs
Bounty:
tested love: im so over love it acquires patience i don't have trials an tribulations yet my souls the only one taken i give 90 you give 10 you say that you
SaltySuga:
is it possible to tell how deep a cut is by an open wound? like would i be able t
AndreW2002:
I'm trying to change my profile picture but it keeps saying "Either a error occurred, or you tried to upload a gif" but it's not a gif that I'm using, it's
Arizona:
can someone check out my essay i'm doing in my senior English class about the McD
5 hours ago
1 Reply
0 Medals
IcedShots:
I was wondering, is there anybody on here around my age? Im turning 15 on December 1 ud83dude0a.
5 hours ago
1 Reply
0 Medals
stxandrew1214:
I lwk like a junior need help to talk with her and get to know her but I think sh
23 hours ago
19 Replies
2 Medals
thatonenerd:
Use Hvap of water = 40.7 kJ/mol, c of water = 4.184 J/g.u00b0C, and molar mass of HO = 18.
1 day ago
5 Replies
0 Medals
letrasbonitasz:
Typography plays an important role in digital communication. Different font styles can make social media profiles, usernames, messages, and creative designs
3 days ago
3 Replies
1 Medal
Bounty:
tested love: im so over love it acquires patience i don't have trials an tribulations yet my souls the only one taken i give 90 you give 10 you say that you
1 day ago
7 Replies
2 Medals
SaltySuga:
is it possible to tell how deep a cut is by an open wound? like would i be able t
3 days ago
5 Replies
1 Medal
AndreW2002:
I'm trying to change my profile picture but it keeps saying "Either a error occurred, or you tried to upload a gif" but it's not a gif that I'm using, it's
5 days ago
3 Replies
0 Medals