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kramer
2 years ago
9

How many grams is 20 moles of (nh4)2so4 please show work

Chemistry
1 answer:
ryzh [129]2 years ago
5 0

n=20 mol

(NH)4 SO4

Atomic masses :

N- 14

H- 1

S- 32

O- 16

Therefore M= 14×2 + 1×8 + 32 + 16×4

= 132

m= nM

= 20×132

= 2640g

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Rank the following substances in order from most soluble in water to least soluble in water: methane, CH4; 2-butanol, C4H9OH; po
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Answer:

Arranged in order of most soluble to least soluble in water:

KCl > CH_{4}  > C_{4} H_{9} OH > C_{3}H_{8}

Explanation:

Water is a polar solvent due to the electric charge it possesses. Hence it would only dissolve polar molecules.

Non-polar molecules would be dissolved by non-polar solvents.

Short chain alcohols are more soluble than butanol, but generally the polar -OH group is soluble in water.

3 0
3 years ago
Pls help Which statement is true about the environment of urban areas?
wel

The correct answer is A. Urban areas have higher temperatures.

Explanation

Urban Area is a term to refer to cities. Urban areas are characterized by having a developed infrastructure (wide roads, vehicular bridges, wide platforms, tall buildings, residential areas, industrial areas, among others).

Recent studies affirm that urban areas are warmer than surrounding areas; This phenomenon is because the materials with are built buildings, roads, houses, and others, concentrate the sun's rays, increasing the temperature of cities. In addition, the lack of trees deepens this phenomenon, because the trees contribute to cooling by physicochemical processes such as evapotranspiration.

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6 0
3 years ago
Express 250,000 mL in liters.<br> A) 0.25 L <br> B) 2,500 L <br> C) 25 L <br> D) 250 L
elena-s [515]
D) 250l
Explanation :
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5 0
3 years ago
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Determine the number of valence electrons in pcl₃ and then draw the corresponding lewis structure.
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The number of valence electrons in PCl_{5} will be 26.

The atom's outermost inhabited shell is where valence electrons are found. They are significant because they have a major impact on how an atom's chemical characteristics are determined.

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The Lewis structure of  PCl_{5}  is shown as:

Therefore, the number of valence electrons in PCl_{5} will be 26.

To know more about valence electrons

brainly.com/question/13993867

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7 0
2 years ago
Which type of reaction occurs in the following equation?
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