Remember the equation #
moles = mass(g) / Mr ( Relative molcular mass)
The Mr of LiCl is: -
1 x Li = 1 x 7 = 7
1 x Cl = 1 x 35.5 = 35.5
7 + 35.5 = 42.5
Substituting
moles(LiCl) = 0.55 g/ 42.5 = 0.0129... ~ 0.013
0.0130 moles of LiCl
how many moles in 0.550 g of lithium
Sodium chloride, also known as table salt, can be sprinkled on to taste, rather than weighed on a sensitive balance. The exact amount that you use on your food is seldom important enough to require measurement.
The blocks were made of limestone that weighed at least 2.5 tonnes each! Some of the big granite stones weighed as much as 70tonnes
1500
53 grams of water was lost.
how many moles in 0.550 g of lithium
The empty vial is weighed after pouring the sodium chloride out in order to determine the actual amount of product that was produced by the reaction. By taking the full vial and subtracting the empty vial you can calculate the weight of the product.
0.720940834 grams
By this following reaction:Fe2+ + Fe3+ + OH- ----> Fe3O4 + H2OIt comes out as a black precipitate. Generally this reaction is done by using Iron(II) Chloride, Iron(III) chloride and Ammonium hydroxide.
For example to contain a sample to be weighed; or to make a chemical reaction at small scale; or to cover a beaker.
Sodium chloride, also known as table salt, can be sprinkled on to taste, rather than weighed on a sensitive balance. The exact amount that you use on your food is seldom important enough to require measurement.
The vet weighed the dog.All the bags are weighed before they are checked in at the airport.
They would each be lifting 61. =671 ÷ 11 = 61
Some are weighed by ounces but most are weighed by grams.
All chemical are weighed cold, generally at 20 0C, to make possible correct comparisons between different weighings. The density of all materials depends on the temperature. Also, hot materials have negative influences on analytical balances.
it is weighed in kilos
it is weighed in grams