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A student weighed 0.550 g of lithium chloride LiCl to use in a reaction How many moles is this?
To calculate the number of moles of lithium chloride (LiCl) in 0.550 g, you need to divide the mass by the molar mass of LiCl. The molar mass of LiCl is approximately 42.39 g/mol (6.94 g/mol for Li and 35.45 g/mol for Cl). Therefore, 0.550 g of LiCl is approximately 0.013 moles.
A flask is weighed and has a mass of 50.0 grams Then 2.0 grams of sodium metal is added to the flask Chlorine gas is pumped into the flask This allows the sodium metal to react completely with c?
The sodium metal will react with chlorine gas to form sodium chloride. The reaction involves a single displacement reaction where sodium replaces chlorine in its diatomic form to form NaCl. The final mass of the flask will increase by 2.0 grams due to the formation of sodium chloride.
Why doesn't sodium chloride need to be measured on sensitive balance?
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.
From what type of rock is most of the great pyramid constructed?
Most of the Great Pyramid of Giza is constructed from limestone blocks, specifically the Tura limestone. This type of limestone was quarried locally and has a light, creamy color.
Why anhydrous sodium carbonate is a primary standard?
Anhydrous sodium carbonate is a primary standard because it is stable, easily obtained in a pure form, and can be weighed accurately. It does not contain any water molecules, making it easier to measure and calculate the exact amount required for a reaction. It can be used to standardize solutions in titrations by reacting stoichiometrically with an acid.
Why is the empty vial weighed after pouring the sodium chloride out?
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.
A student weighed 0.550 g of lithium chloride LiCl to use in a reaction How many moles is this?
To calculate the number of moles of lithium chloride (LiCl) in 0.550 g, you need to divide the mass by the molar mass of LiCl. The molar mass of LiCl is approximately 42.39 g/mol (6.94 g/mol for Li and 35.45 g/mol for Cl). Therefore, 0.550 g of LiCl is approximately 0.013 moles.
If a balanced equation of calcium chloride dihydrate and sodium carbonate with the calcium chloride dihydrate is 1.0g what would the weighed measurement be of sodium carbonate?
0.720940834 grams
A flask is weighed and has a mass of 50.0 grams Then 2.0 grams of sodium metal is added to the flask Chlorine gas is pumped into the flask This allows the sodium metal to react completely with c?
The sodium metal will react with chlorine gas to form sodium chloride. The reaction involves a single displacement reaction where sodium replaces chlorine in its diatomic form to form NaCl. The final mass of the flask will increase by 2.0 grams due to the formation of sodium chloride.
Uses of a watch glass?
For example to contain a sample to be weighed; or to make a chemical reaction at small scale; or to cover a beaker.
Why zinc chloride is weighed when it is cold and not hot?
Zinc chloride is weighed when it is cold because it is hygroscopic, meaning it readily absorbs moisture from the air. Weighing it while hot could lead to inaccurate measurements due to moisture loss or gain as the salt cools.
What is a sentence for weighed?
The vet weighed the dog.All the bags are weighed before they are checked in at the airport.
US coins are weighed by what type of measurement?
Some are weighed by ounces but most are weighed by grams.
If a pumpkin weighed 671 and 11 fourth graders lifted it on average how much would each student be lifting?
They would each be lifting 61. =671 ÷ 11 = 61
What is the homonym of wade?
The homonym of "wade" is "weighed."
Would a letter be weighed in grams or kilograms?
it is weighed in grams
Is a large television weighed in pounds or tons?
it is weighed in kilos
