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Ulleksa [173]
3 years ago
5

What do scientist use to measure the volume of a substance

Chemistry
2 answers:
jekas [21]3 years ago
7 0
Scientist use density to measure how much stuff is in a specified volume of a substance
natali 33 [55]3 years ago
3 0
Scientists use a Graduated Cylinder
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Balance the following reaction. A coefficient of "1" is understood. Choose option "blank" for the correct answer if the
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Oxygen has an electronegativity of 3.4, phosporus has an electronegativity of 2.2 The bond between them is
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Explanation:

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What would be the vapor pressure at 25.0 °c of a solution of 5.00 g of glucose (c6h12o6) in 100.0 g of ethanol (c2h5oh)?
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Use Raoult's Law:
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4 0
3 years ago
The mass of a deuterium nucleus 21H is less than its components masses. Calculate the mass defect.________ amu
Inessa [10]

Answer:

The mass defect of a deuterium nucleus is 0.001848 amu.

Explanation:

The deuterium is:

^{A}_{Z}X \rightarrow ^{2}_{1}H  

The mass defect can be calculated by using the following equation:

\Delta m = [Zm_{p} + (A - Z)m_{n}] - m_{a}

Where:

Z: is the number of protons = 1

A: is the mass number = 2      

m_{p}: is the proton's mass = 1.00728 amu  

m_{n}: is the neutron's mass = 1.00867 amu

m_{a}: is the mass of deuterium = 2.01410178 amu

Then, the mass defect is:

\Delta m = [1.00728 amu + (2- 1)1.00867 amu] - 2.01410178 amu = 0.001848 amu

Therefore, the mass defect of a deuterium nucleus is 0.001848 amu.

I hope it helps you!  

5 0
3 years ago
Read 2 more answers
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