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ra1l [238]
2 years ago
9

Can someone help me with this??

Chemistry
2 answers:
zloy xaker [14]2 years ago
5 0

゚+*:ꔫ:*﹤  ﹥*:ꔫ:*+゚Answer:゚+*:ꔫ:*﹤  ﹥*:ꔫ:*+゚

The following: Jupiter, Saturn, Uranus, or Neptune.

゚+*:ꔫ:*﹤  ﹥*:ꔫ:*+゚Explanation:゚+*:ꔫ:*﹤  ﹥*:ꔫ:*+゚

any of the planets Jupiter, Saturn, Uranus, and Neptune whose orbits lie beyond the asteroid belt.

cluponka [151]2 years ago
5 0

Answer:

it is Saturn

Explanation:

and outer planter is just a planet outside the asteroid belt

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What is the mass of CO2 lost at 20 min from the limestone sample?
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Answer:

The mass, CO2 and CO3 from the limestone sample is discussed below in details.

Explanation:

(A) mass loss of sample of limestone after 20 min

= 0.8437g-0.5979g = 0.2458 g

From the given reaction of limestone, 2 mol of the sample gives 2 moles of CO 2.

Therefore  

184.4 g ( molar mass of limestone) gives2× 44 g of carbon dioxide.

1 g of sample gives 88/184.4 g of carbon dioxide

Hence 0.2458 g sample gives

= 88/184.4 × 0.2458 g = 0.117 g carbon dioxide

(B) mole of CO 2 lost = weight/ molar mass

= 0.117 g / 44 g/mol =0.0027 mole

(C). 1 mol of limestone contain 2 mol of carbonate ion

From the reaction we know that carbonate ion of limestone is converted into carbondioxide

Hence lost carbonate ion = 0.2458 g

(D) we know that

1 mol limestone contain 1mol CaCO​​​ 3

Hence in sample present CaCO​​​ 3

= 1mole / 184.4 g × 0.8437 g= 0.00458 mol CaCO​​​3

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2 years ago
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