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NeTakaya
2 years ago
14

How many moles of dipyrithione are in 29.0 g of dipyrithione?

Chemistry
1 answer:
viktelen [127]2 years ago
7 0

C10H8N2O2S2

C=12,H=1,N=14,O=16,S=32

R. F. M (Relative Formula Mass)=(12*10)+8+(2*14)+(2*16)+(2*32)

Number of moles =given mass/formula mass

=29/252

=0.1151 moles

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What can the reader conclude about the effects of hurricanes?
Ludmilka [50]
They cause most of their damage when they reach land
7 0
2 years ago
A certain gas at 2oC and 1.00 atm pressure fills a 4.0 container. What volume will the gas occupy at 100oC and 780 torr pressure
artcher [175]

The final volume V₂=4.962 L

<h3>Further explanation</h3>

Given

T₁=20 + 273 = 293 K

P₁= 1 atm

V₁ = 4 L

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P₂=780 torr=1,02632 atm

Required

The final volume

Solution

Combined gas law :

P₁V₁/T₁=P₂V₂/T₂

Input the value :

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6 0
3 years ago
How many grams of aluminum chloride are needed to react completely with 1.084g lithium sulfide?
Oksi-84 [34.3K]
Molar mass :

Li₂S = <span>45.947 g/mol

AlCl</span>₃ = <span>133.34 g/mol

</span><span>3 Li</span>₂<span>S + 2 AlCl</span>₃<span> = 6 LiCl + Al</span>₂S₃

3 * 45.947 g Li₂S ----------> 2 * <span>133.34 g AlCl</span>₃
1.084 g Li₂S ----------------> ?

Mass Li₂S = 1.084 * 2 * 133.34 / 3 * 45.947

Mass Li₂S = 289.08112 / 137.841

Mass Li₂S = 2.0972 g 

hope this helps!

5 0
2 years ago
How many molecules are there in 21.4 grams of Ca(OH)2?
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4 0
2 years ago
2.40 kJ of heat is added to a slug of platinum and a separate 2.40 kJ of heat is added to a slug of zinc. The heat capacity of t
leonid [27]

Final temperature of platinum :-   36.5°C

Final temperature of Zinc :-  29.17°C


3 0
3 years ago
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