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kipiarov [429]
3 years ago
5

At what point is a base no longer added during a titration?

Chemistry
2 answers:
Finger [1]3 years ago
7 0

Answer:

A on Edge

Explanation:

nordsb [41]3 years ago
6 0

Answer:

when the pH increases suddenly in the flask

Explanation:

I think it's right. :)

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Which of the following are likely to form an ionic bond? silicon and oxygen oxygen and oxygen carbon and hydrogen magnesium and
Tasya [4]

Answer: The bond formed between magnesium and oxygen is an ionic bond.

Explanation:

An ionic bond is formed when an atom transfer its valence electrons to another atom.

Whereas, a covalent bond is formed by the sharing of electrons between the atoms.

Silicon and oxygen forms silicon dioxide. Silicon has 4 valence electrons which are shared with each oxygen atom. Hence, silicon and oxygen forms a covalent bond.

Oxygen and oxygen shares two pairs of electrons therefore, a covalent bond is formed between oxygen and oxygen.

A covalent bond is formed between carbon and hydrogen as carbon has 4 valence electrons which are shared with four hydrogen atoms.

Magnesium has 2 valence electrons which are transferred to the oxygen atom in order to complete its octet.

Therefore, the bond formed between magnesium and oxygen is an ionic bond.

3 0
4 years ago
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How does marketing affect the consumer mindset?
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Answer:

Marketing affects the consumer mindset by leaving them with the decision of either purchasing a product or not and why it should be purchased or not.

6 0
3 years ago
Gaseous compound Q contains only xenon and oxygen. When a 0.100 g sample of Q is placed in a 50.0-mL steel vessel at 0 C, the pr
Paladinen [302]

The question is incomplete, here is the complete question:

Gaseous compound Q contains only xenon and oxygen. When a 0.100 g sample of Q is placed in a 50.0-mL steel vessel at 0°C, the pressure is 0.230 atm. What is the likely formula of the compound?

A. XeO

B. XeO_4

C. Xe_2O_2

D. Xe_2O_3

E. Xe_3O_2

<u>Answer:</u> The chemical formula of the compound is XeO_4

<u>Explanation:</u>

To calculate the molecular weight of the compound, we use the equation given by ideal gas equation:

PV = nRT

Or,

PV=\frac{w}{M}RT

where,

P = Pressure of the gas = 0.230 atm

V = Volume of the gas  = 50.0 mL = 0.050 L     (Conversion factor:  1 L = 1000 mL)

w = Weight of the gas = 0.100 g

M = Molar mass of gas  = ?

R = Gas constant = 0.0821\text{ L atm }mol^{-1}K^{-1}

T = Temperature of the gas = 0^oC=273K

Putting value in above equation, we get:

0.230\times 0.050=\frac{0.100}{M}\times 0.0821\times 273\\\\M=\frac{0.100\times 0.0821\times 273}{0.230\times 0.050}=194.9g/mol\approx 195g/mol

The compound having mass as calculated is XeO_4

Hence, the chemical formula of the compound is XeO_4

5 0
4 years ago
How many moles of carbon dioxide gas can be produced when 12.8 moles of benzene (C6H6) react with excess oxygen? Unbalanced equa
vodka [1.7K]
1) 2C₆H₆ + 15O₂ = 6H₂O + 12CO₂

2) n(C₆H₆)/2=n(CO₂)/12

n(CO₂)=6n(C₆H₆)

n(CO₂)=6*12.8 mol = 76.8 mol
6 0
3 years ago
An aqueous solution of hydrochloric acid is standardized by titration with a 0.137 M solution of sodium hydroxide. If 16.1 mL of
Andre45 [30]

The molarity of the hydrochloric acid, HCl solution given the data is 0.079 M

<h3>Balanced equation </h3>

HCl + NaOH —> NaCl + H₂O

From the balanced equation above,

  • The mole ratio of the acid, HCl (nA) = 1
  • The mole ratio of the base, NaOH (nB) = 1

<h3>How to determine the molarity of HCl </h3>
  • Molarity of base, NaOH (Mb) = 0.137 M
  • Volume of base, NaOH (Vb) = 16.1 mL
  • Volume of acid, HCl (Va) = 27.9 mL
  • Molarity of acid, HCl (Ma) =?

MaVa / MbVb = nA / nB

(Ma × 27.9) / (0.137 × 16.1) = 1

(Ma × 27.9) / 2.2057  = 1

Cross multiply

Ma × 27.9 = 2.2057

Divide both side by 27.9

Ma = 2.2057 / 27.9

Ma = 0.079 M

Thus, the molarity of the HCl solution is 0.079 M

Learn more about titration:

brainly.com/question/14356286

#SPJ1

5 0
2 years ago
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