1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Arte-miy333 [17]
3 years ago
12

What is the molarity of sodium chloride in solution that is 13.0% by mass sodium chloride and that has a density of 1.10 g/mL?

Chemistry
1 answer:
Andrej [43]3 years ago
8 0

Answer:

molarity: 2.4 M

Explanation:

1. Suppose you have 100 mL de solution:

Use density to find grams of soluton:

100 mL solution x (1.10 g / 1 mL) = 110 g solution

2. FInd the amount of sodium chloride pure:

110 g solution x(13 g NaCl / 100 g solution) = 14.3 g NaCl

3. Change grams to mol:

14.3 g NaCl x ( 1 mol NaCl/ 58.44 g NaCl) = 0.24 mol NaCl

4. Molarity:

M = mol NaCl / L solution

M = 0.24 mol NaCl / 0.1 L = 2.4 M

You might be interested in
Ammonia, NH3, is a typical ingredient in household cleaners. It is produced through a combination reaction involving N2(g) and H
GalinKa [24]
The balanced chemical reaction is:

N2 + 3H2 = 2NH3

We are given the amount of hydrogen gas to be used in the reaction. This will be the starting point of the calculations.

24.0 mol H2 (2 mol NH3 / 3 mol H2 ) = 16 mol NH3

Therefore, ammonia produced from the reaction given is 16 moles.
3 0
3 years ago
Calculate the oxidation numbers of the elements in this equation<br> 2 Al2O3 → 4 Al + 3 O2
riadik2000 [5.3K]

Explanation:

Answer

Open in answr app

The rule used here is that the algebraic sum of the oxidation numbers of all the atoms a molecule is zero.

Al2O32× ( oxidation number of Al)+3× ( Oxidation number of O )  = 0

2× ( Oxidation number of Al) +3(−2)=0

2× ( oxidation number of Al) +6

∴ Oxidation number of Al =+3

5 0
3 years ago
The chart below shows examples of solids, liquids, gases, and plasma.
spin [16.1K]
The word that is in an incorrect place in the chart is HAIL.
The state of matter of hail is not plasma; hail is a solid at room temperature. Plasma refers to the state of matter in which an ionized gas have approximately equal number of positively and negatively charged ions. Thus, plasma is an ionized gas. Plasma is considered to be the fourth state of matter.  <span />
4 0
3 years ago
Read 2 more answers
PLEASE ANSWER
Otrada [13]

Answer:

The answer is D) White Light!

7 0
3 years ago
I need the answer for number 3 please I need to check if I’m correct?
balandron [24]
Yes you are correct hope you do well
5 0
3 years ago
Other questions:
  • How is rubbing alcohol a homogenous mixture ??
    13·1 answer
  • Enter the molecular formula for butane, C4H10.
    7·1 answer
  • Staples and metal shavings are examples of which type of hazards
    5·1 answer
  • At constant volume, a tank of gas shows a pressure of 2500 atm at 290 K. The tank is then placed in a metal shed where the tempe
    11·1 answer
  • Air pressure decreases more rapidly with altitude within a column of ________ air than in a column of __________ air.
    11·1 answer
  • Write a balanced molecular equation and a net ionic equation for the reaction that occurs when magnesium hydroxide reacts with a
    15·1 answer
  • Adding a catalyst to a system at equilibrium lowers the activation energy required by a system, which system, which shifts the e
    13·2 answers
  • Assignment
    9·1 answer
  • In the diagram of a transverse wave shown, what does P represent?
    10·2 answers
  • Assuming the substance is one of those listed in the table presented in this lesson, what is the identity of the substance?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!