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3 years ago

How are humidity and relative humidity different?

2 answers:

7 0

The Humidity Ratio is how much ‘air’ is in the air versus the amount of water. Relative Humidity on the other hand, takes the humidity ratio, and includes the air temperature, and the maximum amount of water the air can hold, and displays it as a percentage.

mr_godi [17]3 years ago

6 0

Relative humidity is the percentage of what it can hold. Humidity is the measure of the amount of water vapor it can hold.

hope this helps ^^

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A hard-water solution contains 4.8 g of calcium chloride. How much sodium phosphate in grams should be added to the solution to

alexgriva [62]

Answer:

4.7 g

Explanation:

The reaction that takes place is:

3CaCl₂(aq) + 2Na₃PO₄(aq) → Ca₃(PO₄)₂(s) + 6NaCl(aq)

First we convert 4.8 g of CaCl₂ into moles, using its molar mass:

4.8 g ÷ 110.98 g/mol = 0.0432 mol CaCl₂

Then we convert CaCl₂ moles into Na₃PO₄ moles, using the stochiometric coefficients of the balanced reaction:

0.0432 mol CaCl₂ * $\frac{2molNa_3PO_4}{3molCaCl_2}$ = 0.0288 mol Na₃PO₄

Finally we convert 0.0288 moles of Na₃PO₄ into grams, using its molar mass:

0.0288 mol Na₃PO₄ * 164 g/mol = 4.7 g

8 0

3 years ago

What contribution did Niels Bohr make to atomic theory?

Bumek [7]

Answer:

Explanation

His greatest contribution is the atomic model

3 0

3 years ago

What do atomic-scale models show you that your observations of properties cannot?

Zigmanuir [339]

The atomic number is the number of protons in the nucleus of an atom. The number of protons define the identity of an element.

4 0

3 years ago

How many moles of bromine are needed to produce 5 moles of aluminum bromide

Verdich [7]

Answer:

7.5 mol

Step-by-step explanation:

2Al + 3Br₂ ⟶ 2AlBr₃

You want to convert moles of AlBr₃ to moles of Br₂.

The molar ratio is 3 mol Br₂:2 mol AlBr₃.

Moles of Br₂ = 5 × 3/2

Moles of Br₂ = 7.5 mol Br₂

You need 7.5 mol of Br₂ to produce 5 mol of AlBr₃.

4 0

4 years ago

If 2.4x105L of gas is at 180mmHg, what is the pressure when the gas is

sammy [17]

Answer:

Thats the solution to the question

7 0

3 years ago