How could having a knowledge of density be useful in everyday life

2 answers:

6 0

Most people cook everyday you use a measuring cup to measure liquids and solids or powders. You use density when filling a glass of water if your dehydrated which glass do you choose the large cup or the small cup.

aleksklad [387]2 years ago

5 0

Density is found in everyday objects.

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What kind of oxide is formed when a piece of sodium is dropped in the water

aleksley [76]

Answer:

Sodium oxide is the product

Explanation:

4Na+O2->2Na2O

7 0

2 years ago

Water that fills the cracks and spaces in underground soil and rock layers is calleda. salt water.

algol [13]

The answer is groundwater

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2 years ago

For the cell constructed from the hydrogen electrode and metal-insoluble salt electrode, B) calculate the mean activity coeffici

Brut [27]

Question:

For the cell constructed from the hydrogen electrode and metal-insoluble salt electrode, B) calculate the mean activity coefficient for 0.124 b HCl solution if E=0.342 V at 298 K

Answer:

The mean activity coefficient for HCl solution is 0.78.

Explanation:

Activity coefficient is defined as the ratio of any chemical activity of any substance with its molar concentration. So in an electrochemical cell, we can write activity coefficient as γ. The equation for determining the mean activity coefficient is

$E=E_{0}-0.0514 \mathrm{V} \ln \gamma$