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Cloud [144]
3 years ago
13

Choose the appropriate volumetric device to use for each of the volume measuring applications.

Chemistry
1 answer:
Oksanka [162]3 years ago
4 0

Answer:

1. Beaker and Flask: These two volumetric devices are used to make coarse measurements of volume. These devices have graduated volume measurements marked on the side if the beaker and flask. The beaker and flask have a 5% accuracy.

2. Graduated Cylinder: More accurate than beakers and flask, with a 1% accuracy. Graduated cylinder are transparent with finely divided graduations. Their size vary from 5mL to 200mL.

3. Burets: These are cylindrical glassware with a valve at the bottom (commonly called a “stopcock”). They also have graduations on the side for accurate reading, and they have a 0.01mL accuracy.

4. Pipets: 12-24 inches long slender tubes, that measure predetermined volume. Mohr pipets are volumetric glassware pipets with graduations used to measure odd or fractional volumes to be provided. They have a 0.02mL accuracy. There are three types of pipets: air-displacements; positive-displacement; and the dispenser pipet.  

Explanation:

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Which solution is a homogeneous mixture?
avanturin [10]

salt and water solution is a homogeneous mixture

<u>Explanation:</u>

Homogeneous mixtures generally termed as solutions, have an identical similar occurrence and form throughout (the prefix "homo" means the same). Solutions consist of particles as tiny as fragments or molecules. For instance, a sugar solution is homogeneous because only transparent liquids can be seen. Homogeneous mixtures only have individual phase: gas, liquid or solid.

Solvent: normally the material in the greater amount. The material used to dissolve the solute or solutes. Example: water.

Solute: ordinarily the substance in the lesser amount. The substance dissolved by the solvent. Example: salt

Salt and water solution is homogeneous because only transparent liquids can be seen.

3 0
3 years ago
How many grams can be prepared until equilibrium is attained? carbon disulfide is prepared by heating sulfur and charcoal. the c
e-lub [12.9K]
Kc = [CS2] / [S2][C] but, since C is solid, it doesn't fit here 
<span>Kc = [CS2] / [S2] </span>
<span>S2(g) + C(s) ---> CS2(g) </span>
<span>13.8mole S2 / 6.05L = 2.28M </span>

<span>Kc = x / 2.28-x </span>
<span>9.4 x (2.28-x) = x </span>
<span>21.43 - 9.4x = x </span>
<span>21.42 = 10.4x </span>
<span>x = 2.05M = [CS2] </span>
<span>2.05M x 6.05L = 12.46moles </span>
<span>12.46moles x 76gmole = 946.96g CS2</span>
5 0
3 years ago
Select the person responsible for the following: cotton gin
Stells [14]
The inventor of the cotton gin in Eli Whitney
7 0
3 years ago
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Drag the tiles to the correct boxes. Not all tiles will be used. The oxidation number of oxygen is -2, and that of chlorine is -
Evgen [1.6K]

<u>Answer:</u>

<em>That oxidation number of chlorine is -1 while that of oxygen is -2</em>

<u>Explanation:</u>

When it comes to manganese chloride to stabilize the chlorine Ion. Two manganese ions shall be required. Hence the formula for the compound becomes M_nCl_2 while the formula for manganese (iv) chloride will be M_nCl_4 similarly.

When oxygen and magnesium oxide is considered the Two ions of Manganese will satisfy to ions of oxygen. Which cancels and becomes M_nO while for manganese (iv) oxide  the formula becomes M_nO_2.

5 0
3 years ago
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Your general impression suggests that your immediate action should be to: ____.
Lynna [10]

Your general impression suggests that your immediate action should be to call for additional help. The correct option is a.

<h3>What is immediate action?</h3>

Immediate actions are the actions that are taken without taking any time. These actions are taken when there is no time to think, and you should immediately think about the actions. The emergency condition needs immediate help.

During the time of general impression, one should immediately call for additional help. Additional people will give you suggestions for the problem.

Thus, the correct option is a. call for additional help.

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brainly.com/question/28084658

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