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3 years ago

Which compound has the highest percent composition by mass of strontium

Chemistry

1 answer:

8090 [49]3 years ago

3 0

So if the compound has the smallest gram formula mass it has the highest percentage composition by mass of strontium

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How many unpaired electrons are in the c 2 + ion?

sladkih [1.3K]

Atomic number of C is 6. Hence, there are 6 electrons in carbon.

The electronic configuration of carbon is 1s2, 2s2, 2p2

Here, there are 2 unpaired electron. However, C2+ ions have 2 electrons less as compared to C.

Hence, electronic configuration of C 2+ ion is 1s2, 2s2. All the electrons are paired in this system. So there are no unpaired electrons in C 2+ ion.

7 0

4 years ago

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Vinil7 [7]

12: They have more moons because they are bigger. They have a greater gravity field so they pull more on other objects. Gravity is like a blanket held taunt. If you put a big bowling ball in the center and place an orange on the outside the orange is going to want to go to the center, where the bowling ball is. Now if you add angular momentum to the equation you get gravity. Of course it isn't that simple but its the jist of it. Therefore, since Saturn and Jupiter have a higher gravitational pull on other celestial objects they pull on more matter around them, like asteroids and such. These asteroids clump together and form their planets.

7 0

3 years ago

Read 2 more answers

For hot vacuum filtration, the filter paper should be completely dry when pouring the hot solution into the Buchner funnel to fi

Oliga [24]

Answer:

False.

Explanation:

The given statement is false because for hot vacuum filtration, the filter paper should be wet rather than dry when pouring the hot solution into the Buchner funnel. This is because The possible explanation the filter paper needs to be wetted is not only to allow it to adhere to the funnel, but also to promote the solute to filter down readily across its pores of the paper without wetting it (this is true for organic and aqueous solvents).

5 0

3 years ago

Which of the following is the smallest volume? (2 points) 30 cm3 2,500 mL 25 m3 2.0 x 10-1 L

aliya0001 [1]

2500mL is the answer

6 0

4 years ago

A chemist is studying small organic compounds for their potential use as an antifreeze. When 0.243 g of a compound is dissolved

harina [27]

Molar mass = 144.2 g/mol.

<h3>Calculate Molar mass.</h3>

Formula to solve this: ΔT = Kf . m

ΔT → Freezing point of pure solvent - Freezing point of solution

0°C - (-1.94°C) = 1.86 °C/m . m

1.94°C / 1.86 m/°C = m → 1.04 m

1.04 are the moles of solute in 1kg of solvent → molality (mol/kg)

Let's convert the mass of our solvent in kg to determine the moles.

80 g . 1kg / 1000 g = 0.08 kg

Molality . kg of solvent → Solute moles

1.04 mol/kg . 0.080 kg = 0.0832 moles

These are the moles of 12 g of solute. To find the molar mass → g/mol

12 g / 0.0832 mol = 144.2 g/mol

To learn more about Molar mass from the given link:

brainly.com/question/14787860

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4 0

1 year ago