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Rudiy27
3 years ago
7

If the distance between two objects of the same mass decreased the force of gravity between them would

Chemistry
2 answers:
ruslelena [56]3 years ago
8 0

Answer:

It will increase

Explanation:

Anni [7]3 years ago
4 0

Answer:

The force of gravity between two objects will decrease as the distance between them increases.

Explanation:

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Can you give me the anwsers

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3 years ago
3. In a typical titration experiment a student titrates a 5.00 mL sample of formic acid (HCOOH), a monoprotic organic acid, with
ira [324]

Answer:

2.893 x 10⁻³ mol NaOH

[HCOOH] = 0.5786 mol/L

Explanation:

The balanced reaction equation is:

HCOOH + NaOH ⇒ NaHCOO + H₂O

At the endpoint in the titration, the amount of base added is just enough to react with all the formic acid present. So first we will calculate the moles of base added and use the molar ratio from the reaction equation to find the moles of formic acid that must have been present. Then we can find the concentration of formic acid.

The moles of base added is calculated as follows:

n = CV = (0.1088 mol/L)(26.59 mL) = 2.892992 mmol NaOH

Extra significant figures are kept to avoid round-off errors.

Now we relate the amount of NaOH to the amount of HCOOH through the molar ratio of 1:1.

(2.892992 mmol NaOH)(1 HCOOH/1 NaOH) = 2.892992 mmol HCOOH

The concentration of HCOOH to the correct number of significant figures is then calculated as follows:

C = n/V = (2.892992 mmol) / (5.00 mL) = 0.5786 mol/L

The question also asks to calculate the moles of base, so we convert millimoles to moles:

(2.892992 mmol NaOH)(1 mol/1000 mmol) = 2.893 x 10⁻³ mol NaOH

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Roughly how many times does Earth rotate during each complete revolution?
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The Earth rotates 365 times during each complete revolution.

HOPE THIS HELPS! ^_^
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A

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Which option lists the layers of the rainforest in the correct order from top to bottom?
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