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Nostrana [21]
4 years ago
11

Match each titration term with its definition.

Engineering
1 answer:
stich3 [128]4 years ago
4 0

Answer:

1) titration

2) titrand

3) equivalence point

4) titrant

5) Burette

6) Indicator

Explanation:

The process of adding a known volume a standard solution to another solution to react with it in order to determine the concentration of the unknown solution is known as titration.

The solution to which another solution of known concentration is added is called the titrand while the solution of known concentration is called the titrant.

A burette is a glassware used to slowly add a known volume of the titrant to the titrand. An indicator shows the point when the reaction is complete by a color change. This is the point when the required amount of one solution has been added to the second solution. It is also called the equivalence point.

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3 years ago
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A 0.9% solution of NaCl is considered isotonic to mammalian cells. what molar concentration is this?
natka813 [3]

Answer:

58.44 g/mol The Molarity of this concentration is 0.154 molar

Explanation:

the molar mass of NaCl is 58.44 g/mol,

0.9 % is the same thing as 0.9g of NaCl , so this means that 100 ml's of physiological saline contains 0.9 g of NaCl.  One liter of physiological saline must contain 9 g of NaCl.  We can determine the molarity of a physiological saline solution by dividing 9 g by 58 g... since we have 9 g of NaCl in a liter of physiological saline, but we have 58 grams of NaCl in a mole of NaCl.  When we divide 9 g by 58 g, we find that physiological saline contains 0.154 moles of NaCl per liter.  That means that physiological saline (0.9% NaCl) has a molarity of 0.154 molar.  We can either express this as 0.154 M or 154 millimolar (154 mM).

3 0
4 years ago
Horizontal shear forces and, consequently, horizontal shear stresses are caused in a flexural member at those locations where th
jek_recluse [69]

Answer:

False

Explanation:

When the horizontal shear forces act on the surface there is transverse shear stress at a particular point which is equal in magnitude. Pure bending is less common than a non uniform bending because the beam is not in equilibrium.

5 0
3 years ago
Which of these is shown in the photo below?
Arte-miy333 [17]

Answer:

Option C

Explanation:

The image given in the question represents an overflow tank

Since a water pump has rotor and blades (which is not visible in the given image), hence, this image is not of water pump.

The surge tank has a different structure as compared to that of overflow tank

Radiator looks like a metallic structure with parallel blades.

Hence, option C is correct

4 0
3 years ago
An ideal Carnot engine extracts of heat from a high-temperature reservoir at 1200 during each cycle, and rejects heat to a low-t
Brut [27]

Answer:

efficiency of the engine is 0.4167

Explanation:

given data

T high = 1200 K

T low = 700 K

solution

we get here efficiency that is express as

efficiency  = 1 - \frac{T\ low}{T \ high }    .........................1

put here value of both temperature we get efficiency  

efficiency  = 1 - \frac{700}{1200}

efficiency  = 1 - 0.58333

efficiency  = 0.4167

so efficiency of the engine is 0.4167

3 0
3 years ago
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