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stira [4]
3 years ago
11

Match the chromatography term with its definition. The volume of solvent traveling through the column per unit time. The elapsed

time between sample injection and detection. The time required by a retained solute to travel through the column beyond the time required by the unretained solvent. The distance traveled by the solvent per unit time. Describes the amount of time that a sample spends in the stationary phase relative to the mobile phase. It is sometimes also called the capacity factor or capacity ratio. Volume of the mobile phase required to elute a solute from the column. Ratio of the adjusted retention times or retention factors of two solutes. It is sometimes also called the separation factor. The ratio of the solute concentrations in the mobile and stationary phases.
Chemistry
1 answer:
zhuklara [117]3 years ago
4 0

Answer:

The statements are definitions to chromatography terms which have been highlighted below.

Explanation:

Match the chromatography term with its definition.

Volumetric Flow Rate = The volume of solvent traveling through the column per unit time.

Retention time = The elapsed time between sample injection and detection.

Adjusted Retention Time = The time required by a retained solute to travel through the column beyond the time required by the un -retained solvent.

Linear Flow Rate = The distance traveled by the solvent per unit time.

Retention factor = Describes the amount of time that a sample spends in the stationary phase relative to the mobile phase. It is sometimes also called the capacity factor or capacity ratio.

Relative Volume = Volume of the mobile phase required to elute a solute from the column.

Relative Retention = Ratio of the adjusted retention times or retention factors of two solutes. It is sometimes also called the separation factor.

Partition coefficient = The ratio of the solute concentrations in the mobile and stationary phases.

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What impact would adding twice as much na2co3 than required for stoichiometric quantities have on the quantity of product produc
inn [45]

The product will not be affected by the addition of twice as much Na₂CO₃.

<h3>What is Limiting reagent in stoichiometry ?</h3>
  • The maximum quantity of the end product determined by a balanced chemical equation is known as the Stoichiometry.
  • The limiting reactant is the one that is consumed first and sets a limit on the quantity of product(s) that can be produced, and the one which remains unconsumed after the final reaction is in Excess.
  • Calculate the moles of each reactant present and contrast it with the mole ratio of the reactants in the balanced equation to determine which reactant is the limiting one.

Here,taking the stoichiometry into consideration, we find that the reaction happens with 1:1 ratio; so, adding twice the amount of Na₂CO₃ will  lead to its excess making the other the limiting reactant, hence, it would not affect the yield of the product.

To know more about the Limiting reactant, refer to:

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4 0
2 years ago
Please help me with this problem.
brilliants [131]
1 μL = 10^-6 L by definition

So...
82 μL = 82x10^-6 L = 8.2x10^-5 L


3 0
3 years ago
Number 51 is 0.00150 ml to l
xenn [34]

Answer:

The answer to your question is

51.- 1.59 x 10⁻⁶

53.- NaHCO₃ +  HCl  ⇒   H₂O  +  CO₂  +  NaCl

Explanation:

51.- Convert 0.00159 ml to liters

Use a rule of three

                                 1000 ml -------------- 1 l

                                 0.00159 ml ---------   x

                                 x = (0.00159 x 1) / 1000

                                 x = 0.00000159 l = 1.59 x 10⁻⁶ l

53.- Sodium hydrogen carbonate (NaHCO₃) reacts with hydrochloric acid to produce salt, water and carbon dioxide.

Sodium hydrogen carbonate = NaHCO₃

Hydrochloric acid = HCl

Reaction

                  NaHCO₃ +  HCl  ⇒   H₂O  +  CO₂  +  NaCl

water = H₂O

carbon dioxide = CO₂

salt = NaCl                    

                 

8 0
3 years ago
Who was the scientist that coined the term cell?
Doss [256]
Robert Hooke was the scientist that coined the term cell
5 0
3 years ago
What is the density of lead (in g/cm^3 3 ) if a rectangular bar measuring 0.500 cm in height, 1.55 cm in width, and 25.00 cm in
Viktor [21]

Answer:

Density = 11.4 g/cm³

Explanation:

Given data:

Density of lead = ?

Height of lead bar = 0.500 cm

Width of lead bar = 1.55 cm

Length of lead bar = 25.00 cm

Mass of lead bar = 220.9 g

Solution:

Density = mass/ volume

Volume of bar = length × width × height

Volume of bar = 25.00 cm × 1.55 cm × 0.500 cm

Volume of bar = 19.4 cm³

Density of bar:

Density = 220.9 g/ 19.4 cm³

Density = 11.4 g/cm³

3 0
3 years ago
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