ngabirealice ngabirealice

14-07-2016
Chemistry

contestada

A chemist prepares a solution of iron(II) bromide FeBr2 by measuring out 0.55kg of iron(II) bromide into a 500.mL volumetric flask and filling the flask to the mark with water.

Calculate the concentration in /molL of the chemist's iron(II) bromide solution.
Round your answer to 2 significant digits

Respuesta :

Lexdesex Lexdesex

15-07-2016

molar mass of ferrous bromide: 215.65
m(FeBr2): 550/215.65 = 2.55moles
this is dissolved in 500mL of water so in 1L of solution there will be 2.55x2 = 5.1mol/L

Answer Link

Otras preguntas

2.Leia o trecho a seguir, a respeito do surgimento e desenvolvimento do romance como um novo gênero literário durante o período do Romantismo. Comente as inform

Sumy is working in geometry class and is given figure ABCD in the coordinate plane to reflect. The coordinates of point D are (a, b) and she reflects the figure

Complete the problems below using the midpoint formula:

Q 1: Calculate the pressure. Linda is pulling her sled carrying a present with a force of 900 N acting towards the ground. The sled has a total area of 3 cm2.

a spider ate 25%, more bugs this month than last month. the spider ate 888 bugs last month how many bugs did the spider eat this month

00 An ordinary (falr) die is a cube with the numbers 1 through 6 on the sides (represented by painted spots). Imagine that such a dle is rolled twice in success

Marlon rose his bicycle 9 miles the first week, 17 miles the second week, and 27 miles the third week. If the pattern continues, will Marlon ride exactly 100 m

Mrs seabrooks is buying two types of gifts cards to gives as prizes to employees at a company picnic.She will buy department store gift cards that each cost $50

An urn contains three white balls and two red balls. The balls are drawn from the urn, oneat a time without replacement, until a white ball is drawn. LetXbe the

stephanie spends 3/4 of an hour on homework five nights a week. how many hours does stephanie spend on home work throught out the week.??