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Rudiy27
3 years ago
8

A gas sample has a volume of 222 mL at 55.0 °C and 100.0 kPa pressure. Find the volume at

Chemistry
1 answer:
Phantasy [73]3 years ago
5 0

Answer:

the wnlqboed anwserh  iefwn is iuhfii 983eugiyifigfgiff

Explanation:

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What is the percent yield of ferrous sulfide if the actual yield is 220.0g and the theoretic yield is 275.6?
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3 0
3 years ago
A coffee-cup calorimeter initially contains 125 g water at 24.28C. Potassium bromide (10.5 g), also at 24.28C, is added to the w
iren2701 [21]

Answer:

The solution is given below

Explanation:

Heat, q= mc∆T

q= 125g x 4.18 J/g∙°C x (21.18x- 24.28) °C

q=  -1619.75J

NEGATIVE SIGN INDICATES THAT HEAT IS ABSORBED.

Enthalpy Change, ∆H = 1619.75 7/ 10.5 g

                                     = 154.26 J/g

No. of moles of KBr = Mass of KBr/ Molecular Weight of KBr

                                =10.5g/119gmol-1

                                =0.088 mol

∆H= 1619.75 J/ 0.088 mol

      = 18.41 kJ/mol  

6 0
3 years ago
The Lewis dot model of a molecule is shown.
Katen [24]

Answer:

Carbon has a total of four bonded pairs of electrons around it.

Explanation:

Since there are four "lines" around the C (which stands for Carbon), we can conclude that Carbon has a total of four bonded pairs of electrons around it.

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3 years ago
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