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Scorpion4ik [409]
3 years ago
13

c)A 100mL graduated cylinder contained 25.6mL of water. A test tube full of water was emptied into the graduated cylinder. The w

ater volume in the graduated cylinder was then found to be 45.8mL. What was the volume of water in the test tube?
Chemistry
2 answers:
mart [117]3 years ago
8 0

Answer:

20.2 mL

Explanation:

45.8 - 25.6 as 45.8 was the mass with the water from the test tube added

belka [17]3 years ago
5 0

Answer : The volume of water in the test tube is 20.2 mL

Explanation : Given,

Volume of water in graduated cylinder = 25.6 mL

Volume of graduated cylinder = 100 mL

Volume of water after adding full test tube of water = 45.8 mL

Now we have to calculate the volume of water in the test tube.

Volume of water in the test tube = Volume of water after adding full test tube of water - Volume of water in graduated cylinder

Volume of water in the test tube = 45.8 mL - 25.6 mL

Volume of water in the test tube = 20.2 mL

Therefore, the volume of water in the test tube is 20.2 mL

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8 0
3 years ago
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Which idea did linnaeus contribute to the theory of evolution
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Answer:

Binomial Naming System

Explanation:

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6 0
3 years ago
TRY H Vele
Strike441 [17]
<h3>Answer:</h3>

Al- [Ne] 3s²3p¹

As- [Ar] 4s²3d¹⁰ 4p³

Explanation:

  • Electron configuration of an element shows the arrangement of electrons in the energy levels or orbitals in the atom.
  • Noble-gas configuration involves use of noble gases to write the configuration of other elements.
  • This is done by identifying the atomic number of the element and then identifying the noble gas that comes before that particular element on the periodic table.
  • For example:
  1. Aluminium: The atomic number of Al is 13. The noble gas before Aluminium is Neon which has 10 electrons. Therefore the remaining 3 electrons fills up the 3s and 3p sub orbitals.
  • Thus, the noble-gas configuration of Al is [Ne] 3s²3p¹

     2.  Arsenic, Atomic number is 33

  • Noble gas before Arsenic is Ar,. Argon has 17 electrons, then the remaining electrons fills up the 4s, 3d and 4p sub-orbitals.
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7 0
2 years ago
A chunk of copper has a volume of 1.45 mL and a mass of 12.93 grams. What is the density of the chunk of copper?
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Answer:

Density = 8.92 \ g/mL

Explanation:

The equation for density is:

Density = \frac{mass}{volume}

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Density = \frac{12.93 \ g}{1.45 \ mL}

Density = 8.92 \ g/mL

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2 years ago
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