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aliya0001 [1]
4 years ago
5

What change do you see over the 100-year period?

Chemistry
1 answer:
Virty [35]4 years ago
4 0
Is there a specific topic you're talking about?

If this is about climate change:

Over the last century. the average surface temperature of the Earth has increased by 1.0°F. The eleven warmest years this century have occurred since 1980, with 1995 the warmest on record. The higher latitudes have warmed more than the equatorial regions.

I hope you found this helpful! :)
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Calculate the molarity of a solution of acetic acid made by dissolving 16.00 mL of glacial acetic acid at 25 ∘C in enough water
Soloha48 [4]

Answer : The molarity of solution is, 1.216 g/mole

Explanation : Given,

Density of acetic acid = 1.049 g/ml  (standard value)

Volume of acetic acid = 16.00 ml

Volume of solution = 230.0 ml

Molar mass of acetic acid CH_3COOH = 2(12)+4(1)+2(16)=60g/mole

First we have to calculate the mass of acetic acid.

Mass=Density\times Volume

Mass=1.049g/ml\times 16ml=16.784g

Now we have to calculate the molarity of solution.

Molarity=\frac{\text{Mass of acetic acid}\times 1000}{\text{Molar mass of acetic acid}\times \text{volume of solution in ml}}

Molarity=\frac{16.784g\times 1000}{60g/mole\times 230ml}

Molarity=1.216g/mole

Therefore, the molarity of solution is, 1.216 g/mole

7 0
3 years ago
How to convert moles 3.612 x 10^23 atoms Fe
Finger [1]

Answer:

0.6 moles of Fe

Explanation:

Given data:

Number of atoms of Fe = 3.612×10²³

Number of moles = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

For example,

1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen

From atoms to mole:

3.612×10²³ atoms of Fe × 1 mole /  6.022 × 10²³ atoms

0.6 moles of Fe

6 0
3 years ago
The ----------------- cells, make up the upper and lower layers of the leaf.
Nataly [62]

Answer:

epidermal! hope this helps u!

4 0
3 years ago
Read 2 more answers
What is the oxidation number of P in PF6^-
Hitman42 [59]
<span>F can only have oxidation number of -1
The overall compound has an oxidation number of -1
You have 6 Fs, so 6(-1) = -6
charge from F
 X = oxidation number of P
 x + (-6) = -1
solve for
x = +5</span>
5 0
3 years ago
Read 2 more answers
Combustion analysis of an unknown compound containing only carbon, hydrogen, and nitrogen produced 1.1385 g of co2 and 0.5652 g
taurus [48]
Co2 is correct hope this helps bud

5 0
4 years ago
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