Search found 13 matches

by sue
Fri Apr 02, 2021 1:22 pm
Forum: Chemistry forum
Topic: conversion calculations
Replies: 9
Views: 1347

Re: conversion calculations

but my teacher says me that im correct :(((
by sue
Thu Apr 01, 2021 5:44 pm
Forum: Chemistry forum
Topic: conversion calculations
Replies: 9
Views: 1347

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
by sue
Fri Mar 26, 2021 12:51 pm
Forum: Chemistry forum
Topic: Calculation ppm
Replies: 4
Views: 924

Re: Calculation ppm

mmmm i mean that ty is thank you but i dont know
by sue
Fri Mar 26, 2021 12:49 pm
Forum: Chemistry forum
Topic: conversion calculations
Replies: 9
Views: 1347

Re: conversion calculations

wrong what'?
by sue
Tue Mar 23, 2021 4:58 pm
Forum: Chemistry forum
Topic: conversion calculations
Replies: 9
Views: 1347

Re: conversion calculations

mmmmmmm thank you
by sue
Tue Mar 23, 2021 4:58 pm
Forum: Chemistry forum
Topic: Calculation ppm
Replies: 4
Views: 924

Re: Calculation ppm

ty
by sue
Tue Mar 23, 2021 4:58 pm
Forum: Chemistry forum
Topic: acetic acid solution
Replies: 10
Views: 1661

Re: acetic acid solution

mmmmm thank you ?
by sue
Tue Mar 23, 2021 1:58 pm
Forum: Chemistry forum
Topic: Calculation ppm
Replies: 4
Views: 924

Calculation ppm

Calculate the ppm of CdCl2 if 1.44x10 ^ 20 Cl atoms were found in a small lake whose volume is 145L.
Helpaaaaaaaaaaaaaaa :cry: :cry:
by sue
Tue Mar 23, 2021 1:57 pm
Forum: Chemistry forum
Topic: conversion calculations
Replies: 9
Views: 1347

conversion calculations

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

:cry: :cry: :cry: :cry: :cry: :cry:
by sue
Tue Mar 23, 2021 1:56 pm
Forum: Chemistry forum
Topic: acetic acid solution
Replies: 10
Views: 1661

acetic acid solution

Calculate the ml that need to be transferred from a solution of 950ml CH 3 COOH at 48% by mass with a density of 1.05g / ml to prepare a solution at 1.28M in 250ml.

i dont understand :cry:
by sue
Tue Mar 23, 2021 1:41 pm
Forum: Chemistry forum
Topic: ayudaaaaaaaaaaaaaa
Replies: 0
Views: 2767

ayudaaaaaaaaaaaaaa

Calcular la molaridad, normalidad y molalidad de una solución de H2CO3 al 32% con una densidad de 1.18g/ml. :D :D :D :D :D :D :| :cry: :cry:
by sue
Tue Mar 23, 2021 1:38 pm
Forum: Chemistry forum
Topic: Quimica
Replies: 0
Views: 2753

Quimica

Calcular la ppm de CdCl2 si se encontraron 1.44x10^20 atomos de Cl en un pequeño lago cuyo volumen es de 145L.
Ayudaaaaa porfaaaaa :D :D :D :D
by sue
Tue Mar 23, 2021 1:36 pm
Forum: Chemistry forum
Topic: Quimica
Replies: 0
Views: 2738

Quimica

Calcula los ml que se necesitan transferir de una solución de 950ml CH3COOH al 48% en masa con una densidad de 1.05g/ml para preparar una solucion al 1.28M en 250ml.
ayudaaaa porfaaaaaaaaaa :D