## conversion calculations

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sue
Full Member
Posts: 13
Joined: Tue Mar 23, 2021 1:31 pm

### conversion calculations

Calculate the molarity, normality and molality of a 32% H 2 CO 3 solution with a density of 1.18g / ml.

ChenBeier
Distinguished Member
Posts: 750
Joined: Wed Sep 27, 2017 7:25 am
Location: Berlin, Germany

### Re: conversion calculation

Calculate the mass of one 1l . 32% is the mass of the 100% carbonic acid. Convert this with molar mass to mole. The rest should be easy now
sue
Full Member
Posts: 13
Joined: Tue Mar 23, 2021 1:31 pm

### Re: conversion calculations

mmmmmmm thank you
ChenBeier
Distinguished Member
Posts: 750
Joined: Wed Sep 27, 2017 7:25 am
Location: Berlin, Germany

### Re: conversion calculations

What is wrong, what you dont understand.
sue
Full Member
Posts: 13
Joined: Tue Mar 23, 2021 1:31 pm

### Re: conversion calculations

wrong what'?
ChenBeier
Distinguished Member
Posts: 750
Joined: Wed Sep 27, 2017 7:25 am
Location: Berlin, Germany

### Re: conversion calculations

I expect instead of mmmmmm, that you post your calculation or the result.
sue
Full Member
Posts: 13
Joined: Tue Mar 23, 2021 1:31 pm

### Re: conversion calculations

Now calm because the mass is 7.57, the morality is 6.25 and the normality is 12.5
im doing well? :p
ChenBeier
Distinguished Member
Posts: 750
Joined: Wed Sep 27, 2017 7:25 am
Location: Berlin, Germany

### Re: conversion calculations

What is 7.57 eggs because of easter?

1 l= 1.18 kg
32% is 377,6 g = m

n =m/M 377,6 g/ 62 g/mol = 6,09 mol = Molarity
Normality is double = 12,18 mol
sue
Full Member
Posts: 13
Joined: Tue Mar 23, 2021 1:31 pm

### Re: conversion calculations

but my teacher says me that im correct ((
ChenBeier
Distinguished Member
Posts: 750
Joined: Wed Sep 27, 2017 7:25 am
Location: Berlin, Germany

### Re: conversion calculations

Show the calculation