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mrs_skeptik [129]
3 years ago
12

How are subscripts determined in the formulas of ionic and covalent compounds?

Chemistry
1 answer:
Digiron [165]3 years ago
8 0

Answer:

No of molecules taking part in the bond formation are written in subscript of an element,

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A 3.0 L solution contains 73.5 g of H2SO4. Calculate the molar concentration of the solution.0.25 M0.44 M0.75 M4.0 M
notka56 [123]

The molecular mass of H_2SO_4 is:


2·1 + 1·32 + 4·16 = 98 g/mol


The amount of solute, expressed by mol, is:


73.5\ g\ H_2SO_4\cdot \frac{1\ mol}{98\ g} = 0.75\ mol\ H_2SO_4


The molar concentration definition is: M = \frac{mol\ solute}{volume (L)\ solution}


Doing the calculations:


M = \frac{0.75\ mol}{3\ L} = \bf 0.25\ M


(If you detect any mistakes in my English report me them, please).

6 0
3 years ago
Read 2 more answers
Please answer step by step.
Digiron [165]

3 moles of NaOH reacts with 1 mole of phosphoric acid.

<h3>What is the moles ratio of the NaOH and Phosphoric acid reaction?</h3>

The moles ratio of the reaction between NaOH and Phosphoric acid is given by the equation of the reaction below:

3\:NaOH + H_{3}PO_{4} \rightarrow Na_{3}PO_{4} + 3\:H_{2}O \\

Based on the equation of the reaction, 3 moles of NaOH reacts with 1 mole of phosphoric acid.

Learn more about mole ratio at: brainly.com/question/19099163

#SPJ1

3 0
2 years ago
If you have an aqueous solution that contains 1.5 moles of hcl, how many moles of ions are in the solution? (a) 1.0, (b) 1.5, (c
Darya [45]

If you have an aqueous solution that contains 1.5 moles of HCl, the number of moles of ions in the solution is 3.0 moles.

<h2>Further Explanation </h2><h3>Strong acids  </h3>
  • Strong acids are types of acids that undergo complete dissociation to form ions when dissolved in water.
  • Examples of such acids are, HCl, H2SO4 and HNO3
  • Dissociation of HCl

HCl + H₂O ⇔ H₃O⁺ + OH⁻

<h3>Weak acids  </h3>
  • Weak acids are types of acids that undergo incomplete dissociation to form ions when dissolved in water.
  • Examples of such acids are acetic acids and formic acids.
  • Dissociation of  acetic acid

H₃COOH ⇔ CH₃COO⁻ + H⁺; CH₃COO⁻ is a conjugate base of acetic acid.

<h3>In this case;</h3>
  • HCl which is a strong acid that ionizes completely according to the equation;

HCl + H₂O ⇔ H₃O⁺ + OH⁻

  • From the equation, 1 mole of HCl produces 1 mole of H₃O⁺ ions and 1 mole of OH⁻ ions.

Therefore;

1.5 moles of HCl will produce;

= 1.5 moles of H₃O⁺ ions and 1.5 moles of OH⁻ ions.

This gives a total number ions of;

= 1.5 + 1.5

= 3 moles of ions

Keywords:  Strong acid, weak acid, ions, ionization

<h3>Learn more about: </h3>
  • Strong acid: brainly.com/question/3239966
  • Weak acid; brainly.com/question/3239966
  • Ionization of acids and bases: brainly.com/question/11844503

Level: High school

Subject: Chemistry

Topic: Salts, Acids and Bases

6 0
3 years ago
Read 2 more answers
At a pressure 41 kPa, the gas in a cylinder has a volume of 18 liters. Assuming temperature remains the same, if the volume of t
seraphim [82]

Your looking at 8 liters , cupcake


8 0
3 years ago
What is 0.034 in scientific notation?
dalvyx [7]
You have to move the decimal point forward 2 times to make the number 3.4,which makes the scientific notation 3.4×10^-2
8 0
3 years ago
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