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3 years ago

Calculate the molarity of a solution prepared by

Chemistry

1 answer:

lions [1.4K]3 years ago

4 0

Answer:

Molarity= 0.414M

Explanation:

Applying dilution formula

C1V1=C2V2

0.9×0.575= C2× 1.25

C2= 0.414M

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Which part of an atom is actively exchanged or shared in a chemical bond?

grandymaker [24]

The correct answer is ELECTRON. The part of an atom that is actively exchanged or shared in a chemical bond in the electron. Electron are negatively charged atoms.

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3 years ago

Read 2 more answers

Silver was precipitated and collected by filtration. The experiment yielded .077g of silver after dying. The predicted yield was

PSYCHO15rus [73]

Answer:

Precentage error = 7.23%

Explanation:

The precentage error formula is the useful method for determining precision of your experimental result

It can be calculated using :

$percent\ error = |\frac{experimental\ value-predicted\ value} {predicted\ value}|\times 100$

$percent\ error = |\frac{0.077\ -0.083} {0.083}|\times 100$

So we get percentage error = 7.23%

Precision means how close the experimental value to the true value or theoretical value

If percentage error is large it means experimental results are deviated and there is need to check mistakes,imprecision in the experiment

If the percentage error is zero it means the experiment is perfectly done without inaccuracy

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3 years ago

Which of the following results in a chemical change in matter?

LenKa [72]

The correct answer is

D burning wood

because it's changing the wood.

The other's are physical changes because it's still the same thing, it's just in a different form.

Glad I could help, and good luck!

AnonymousGiantsFan

8 0

3 years ago

Tell how many atoms of each element are in one molecule of the substance of table salt

Tatiana [17]

Answer:

Explanation:

Then, multiply the number of moles of Na by the conversion factor 6.02214179×1023 atoms Na/ 1 mol Na, with 6.02214179×1023 atoms being the number of atoms in one mole of Na (Avogadro's constant), which then allows the cancelation of moles, leaving the number of atoms of Na.Aug 15, 2020

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3 years ago

N2+3H2=2NH3

polet [3.4K]

Answer:

$\large \boxed{\text{6.7 mol NH}_{3}}$

Explanation:

N₂ + 3H₂⟶ 2NH₃

n/mol: 10

The molar ratio is 2 mol NH₃:3 mol H₂.

$\text{Moles of NH}_{3} = \text{ 10 mol H}_{2} \times \dfrac{\text{2 mol NH}_{3}}{\text{3 mol H}_{2}}= \textbf{6.7 mol NH}_{\mathbf{3}}\\\\\text{The reaction produces $\large \boxed{\textbf{6.7 mol NH}_{\mathbf{3}}}$}$

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3 years ago