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egoroff_w [7]
4 years ago
5

The measurement of grams of solute per one million grams of solution is known as

Chemistry
1 answer:
Zinaida [17]4 years ago
5 0
 I think it's Molality because the moles of solute over the kilograms of solvent is equal to the molality...
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the correct answer is Group of answer choices

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Вычислить равновесные концентрации частиц в растворе, содержащем 0,01 моль/л Cu(NO3)2 и 1,0 моль/л NH3.
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A major disadvantage of a corporation is the
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4 years ago
Labels of many food products have expiration dates, at which point they are typically removed from the supermarket shelves. A pa
White raven [17]

Answer:

Explanation:

Since it first order, we use order rate equation

In ( \frac{A1}{A0}) = -kt where A1 is the final quality = 0.8 (80%), A0 is the initial quality = 1 ( 100%)

also, t half life = \frac{In2}{k} where k is rate constant

k = \frac{In 2}{45 days} = 0.0154

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6 0
4 years ago
4.45 kcal of heat was added to increase the temperature of a sample of water from 23.0 °C to 57.8 °C. Calculate
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Answer:

m = 4450 g

Explanation:

Given data:

Amount of heat added = 4.45 Kcal ( 4.45 kcal ×1000 cal/ 1kcal = 4450 cal)

Initial temperature = 23.0°C

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Specific heat capacity of water = 1 cal/g.°C

Mass of water in gram = ?

Solution:

Formula:

Q = m.c. ΔT

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m = mass of given substance

c = specific heat capacity of substance

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ΔT = 57.8°C - 23.0°C

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m = 4450 cal / 1 cal/g

m = 4450 g

4 0
3 years ago
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