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sdas [7]
3 years ago
13

What type of sweetener is used as a filler in pharmaceutical products such as pills because its gritty, hard crystals flow freel

y and are easily compacted for tablet pressing?
Chemistry
1 answer:
nikdorinn [45]3 years ago
6 0

Answer:

Lactose is the sweetener that is used as a filler in tablets that makes compaction possible during tablet pressing.

Explanation:

<em>Lactose </em>is a naturally occurring large sugar molecule found in milk of mammals. It is composed of two simple sugars: <em>Glucose</em> and <em>Galactose</em>.

<em>Anhydrous Lactose</em> is produced by drying <em>lactose </em>solution on the surface of a heated drum. As a result small crystals of <em>anhydrous b-lactose</em> are formed with some<em> anhydrous a-lactose</em>. This anhydrous product has excellent compactability and high solubility due to its high <em>b-lactose</em> content. This highly compactable <em>lactose</em> powder is used in tablets for direct compression,

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How much heat is required to convert 20.0 g of ice at 50.0⁰C to liquid water at 0.0⁰C? The specific heat of ice is 2.06 J/(g∙⁰C)
Alex777 [14]

Answer:

8740 joules are required to convert 20 grams of ice to liquid water.

Explanation:

The amount of heat required (Q), measured in joules, to convert ice at -50.0 ºC to liquid water at 0.0 ºC is the sum of sensible heat associated with ice and latent heat of fussion. That is:

Q = m\cdot [c\cdot (T_{f}-T_{o})+L_{f}] (1)

Where:

m - Mass, measured in grams.

c - Specific heat of ice, measured in joules per gram-degree Celsius.

T_{o}, T_{f} - Temperature, measured in degrees Celsius.

L_{f} - Latent heat of fussion, measured in joules per gram.

If we know that m = 20\,g, c = 2.06\,\frac{J}{g\cdot ^{\circ}C}, T_{f} = 0\,^{\circ}C, T_{o} = -50\,^{\circ}C and L_{f} = 334\,\frac{J}{g }, then the amount of heat is:

Q = (20\,g)\cdot \left\{\left(2.06\,\frac{J}{g\cdot ^{\circ}C} \right)\cdot [0\,^{\circ}C-(-50\,^{\circ}C)]+334\,\frac{J}{g} \right\}

Q = 8740\,J

8740 joules are required to convert 20 grams of ice to liquid water.

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