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Gekata [30.6K]
2 years ago
12

20 gram of marble containing 90% calcium carbonate is allowed to react with 50 gram of a concentrated acid containing 36.5% HCl

by mass.find the limiting reactant ,find number of mole of excess reagent left over reacted,find the mass of salt in gram and find volume of carbon dioxide gas liberated at NTP plz help me plzzzzzzz​
Chemistry
1 answer:
Hitman42 [59]2 years ago
6 0

Explanation:

Good day very tough question

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If in the following diagram the substance is in the solid state during stage 1, what is happening during stage 2?
Iteru [2.4K]
If in the following diagram the substance is in the solid state during stage 1,  during stage 2 the substance is boiling or condensing .
Boiling<span> is the term used to describe the rapid vaporization of a liquid. Boiling occurs when a liquid is heated to its </span>boiling<span> point. 
</span>Condensation happens when the gas is changed into liquid. 
3 0
3 years ago
Read 2 more answers
A 11.97g sample of NaBr contains 22.34 % Na by mass. Considering the law of constant composition (definite proportions), how man
kap26 [50]
<h3>Answer:</h3>

2.125 g

<h3>Explanation:</h3>

We have;

  • Mass of NaBr sample is 11.97 g
  • % composition by mass of Na in the sample is 22.34%

We are required to determine the mass of 9.51 g of a NaBr sample.

  • Based on the law of of constant composition, a given sample of a compound will always contain the sample percentage composition of a given element.

In this case,

  • A sample of 11.97 g of NaBr contains 22.34% of Na by mass
  • Therefore;

A sample of 9.51 g of NaBr will also contain 22.345 of Na by mass

  • But;

% composition of an element by mass = (Mass of element ÷ mass of the compound) × 100

  • Therefore;

Mass of the element = (% composition of an element × mass of the compound) ÷ 100

Therefore;

Mass of sodium = (22.34% × 9.51 g) ÷ 100

                         = 2.125 g

Thus, the mass of sodium in 9.51 g of NaBr is 2.125 g

3 0
3 years ago
PLZZ HELP ASAPPPJKSOWLSOWOLWKSKW
Minchanka [31]
I’m pretty the answer would be continental slope. :)
I really hope this helps.
4 0
3 years ago
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Which of the following compounds are ionic compounds? Check all of the boxes that apply.
Lady_Fox [76]

Answer:

NaCl is the one of the example of ionic compound because na conducts positive charge and CL conduct negative charge

3 0
2 years ago
PLEASE HELP!
Anon25 [30]

Answer:

C. Mole

Explanation:

Chemical formula deals with mole number

4 0
3 years ago
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