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ExtremeBDS [4]
1 year ago
10

in the titration of naoh with vinegar, a student forgot to condition the buret, and it was wet with deionized water before filli

ng with naoh solution. how will this affect the calculate molarity of naoh?
Chemistry
1 answer:
Fynjy0 [20]1 year ago
7 0

This NaOH calculation will have an impact on the molarity since there is a little quantity of deionized water present, which reduces the molarity of the NaOH, and because conditioning Bury will increase the volume needed to neutralize the acid.

The amount of NaOH added has an inverse relationship with its molarity. As a result, (CM)NaOH will decrease as NaOH increases. The moles of solute per liter of solution is measured as molarity. Molarity is represented by a capital M.

A solution is a combination of two or more compounds in chemistry in which neither ingredient undergoes chemical change. For instance, salt water is a mixture of salt and water (the solvent) (the solute). The amount of dissolved material in a solution is known as concentration.

To learn more about molarity

brainly.com/question/8732513

#SPJ4

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why is nitrous oxide sedation especially useful for control of soft tissue discomfort during dental hygiene procedure
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Answer:

Because it has a quickly sedative effect and it has antimicrobial effect.

Explanation:

This gas is useful because is used to trait pain, reduce anxiety and promote relaxation, slow down the body reaction, so the dentist can use it to calm down the patients.

If the patient present some injuries, this gas can help in wound healing.

7 0
3 years ago
THE GEOCENTRIC MODEL
Mars2501 [29]

Answer:

C

Explanation:

6 0
2 years ago
How many atoms are in the following compound? 5Fe2(CO3)3 *
Olegator [25]

Answer:

the answer is 5.........

5 0
3 years ago
A 40.0 mL sample of 0.18 M HCI is titrated with 0.36 M CoHsNH2. Dctermine the pH at these points: At the beginning (before base
Whitepunk [10]

Answer:

at the beginning:

pH = 0.745

Explanation:

HCl is a strong acid, so:

  • HCl + H2O  → H3O+  +  Cl-

       0.18 M             0.18        0.18.....equilibrium

before base is added:

∴ [ H3O+ ] ≅ <em>C </em>HCl = 0.18 M

⇒ pH = - Log [ H3O+ ] = - Log ( 0.18 )

⇒ pH = 0.745

8 0
3 years ago
2. Calculate the mass of 3.47x1023 gold atoms.
lapo4ka [179]

3.47 x 10^{23} atoms of gold have mass of 113.44 grams.

Explanation:

Data given:

number of atoms of gold = 3.47 x 10^{23}

mass of the gold in given number of atoms = ?

atomic mass of gold =196.96 grams/mole

Avagadro's number = 6.022 X 10^{23}

from the relation,

1 mole of element contains 6.022 x 10^{23} atoms.

so no of moles of gold given = \frac{3.47 X 10^{23}  }{6.022 X 10^{23} }

0.57 moles of gold.

from the relation:

number of moles = \frac{mass}{atomic mass of 1 mole}

rearranging the equation,

mass = number of moles x atomic mass

mass = 0.57 x 196.96

mass = 113.44 grams

thus, 3.47 x 10^{23} atoms of gold have mass of 113.44 grams

3 0
3 years ago
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