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PolarNik [594]
2 years ago
5

SOMEONE HELP I'LL GIVE BRAINLIEST

Chemistry
1 answer:
amm18122 years ago
5 0

Answer:

the volume would increase by a greater amount !

Explanation:

great question btw! :P

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In nature, All the atoms are?
Advocard [28]

Answer:

Made up of proton, electron, neutron and 40 different subatomic particles

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3 years ago
In which layers would a solid cube with 6 cm sides and a mass of 270 g float? explain
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I dont know really know i just want to complete this stupid thing
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A student is given 2.19 g of an unknown acid, which can be either oxalic acid, H2C2O4, or citric acid, H3C6H5O7. To determine wh
Alina [70]

Answer:

The unknown acid is citric acid.

There is 0.0342 moles of NaOH consumed.

Explanation:

Step 1: Data given

Mass of the unknown acid = 2.19 gram

Titrating with 0.560 M of NaOH

The equivalence point is reached when 61.0 mL are added

Molar mass of oxalic acid = 90.03 g/mol

Molar mass of citric acid = 192.12 g/mol

<u>Step 2:</u> The balanced equations for both acids

The reaction between oxalic acid and NaOH is:

H2C2O4 + 2NaOH → Na2C2O4 + 2H2O

The reaction between citric acid and NaOH is:

H3C6H5O7 +3NaOH → Na3C6H5O7 + 3 H2O

<u>Step 3:</u> Calculate the number of moles of the acid

Moles = mass / Molar mass

In case of oxalic acid: 2.19 grams / 90.03 g/mol = 0.0243 moles

In case of citric acid: 2.19 grams /192.12 g/mol = 0.0114 moles

Step 4: Calculate number of moles of NaOH

The mole of NaOH required for titration;

number of moles  = Molar mass * volume = (0.560 M * 0.061 L) = 0.03416 mol

<u>Step 5:</u> Calculate which acid

For each mole of oxalic 2 moles of NaOH is required, for 0.0243 mol citric acid 0.0243 *2= 0.0486 mol NaOH is required. This is more than the number of moles consumed.

For each mole of citric acid 3 moles of NaOH is required, for 0.0114 mol citric acid 0.0114 * 3= 0.0342 mol NaOH is required. This is the number of moles NaOH used for the titration.

The unknown acid is citric acid. There is 0.0342 moles of NaOH consumed.

8 0
3 years ago
When you flick a coin so that it slides across a table, it slows down.
Shkiper50 [21]
Well it depends on the coin and the tables material, a table is a bit too broad, either what i know could be friction force between the table and the coin or air resistance force. not sure about gravity force

Sorry not sure 
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3 years ago
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133. Discharging oil upon navigable waters. Except in case of emergency imperiling life or property, or unavoidable accident, co
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In my opinion it’s B
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