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Oxana [17]
2 years ago
12

Be sure to answer all parts.

Chemistry
1 answer:
djyliett [7]2 years ago
4 0

The number of moles contained in each of the question are a) 3.935 and b) 0.001165 mol.

<h3>What are moles?</h3>

Moles are a quantity or amount of a substance. Denoted by n.

To calculate moles, mass is divided by the molar mass

n = m/M

mass is divided by the molar mass

a) 230 grams of NaCl

n = m/M

molar mass of NaCl is 58.44 g/mol

n = 230 / 58.44 = 3.935 mol

b) 0.210 g of aspirin

n = m/M

molar mass of aspirin is 180.158 g/mol

n = 0.210 / 180.158 = 0.001165 mol

Thus, the moles are a) 3.935 and b) 0.001165 mol.

Learn more about moles

brainly.com/question/26416088

#SPJ1

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Balance this equation please!!! ASAP
Delvig [45]

Answer:

C2H4O2 + 2O2 —> 2CO2 + 2H20

The coefficients are 1, 2, 2, 2

Explanation:

C2H4O2 + O2 —> CO2 + H20

To balance the above, do the following

Since there are 2 carbon on the left, put 2 in front of CO2, we have

C2H4O2 + O2 —> 2CO2 + H20

We have 4 hydrogen on the left, to balance it put 2 in front of H2O i.e

C2H4O2 + O2 —> 2CO2 + 2H20

Now, we have a total of 6 oxygen on the right side. To balance it, put 2 in front of O2:

C2H4O2 + 2O2 —> 2CO2 + 2H20

The coefficients are 1, 2, 2, 2

3 0
3 years ago
What is occurring with the velocity between points D and E?
vichka [17]

Answer:

a

Explanation:

the line is going down

8 0
3 years ago
If you have an aqueous solution that contains 1.5 moles of HCl, how many moles of ions are in the solution?
Citrus2011 [14]
There will be three moles of ions.
Because in an aqueous solution, HCl will break apart into  <span>H<span>+ and Cl- ions. 
</span></span>HCl -> <span>H+</span><span> + </span><span>C<span>l<span>−
</span></span></span>1.5 HCl -> 1.5 H+ + 1.5 Cl−<span>
So the aqueous solution will have 1.5 moles of hydrated hydrogen ions and 1.5 moles of hydrated chloride ions. So, a total of 3 moles of ions are present in the aqueous solution of 1.5 moles of HCl. </span>
6 0
3 years ago
C3H8O dissolved in water
nadya68 [22]

If C3H8O is dissolved in water, it would be expected to be a strong electrolyte.

<h3>What is a strong electrolyte?</h3>

A strong electrolyte is a solute or solution (already an electrolyte) that can completely dissociates in solution.

C3H8O is one of those compounds expected to be a strong electrolyte.

Thus, if C3H8O is dissolved in water, it would be expected to be a strong electrolyte.

Learn more about strong electrolytes here:  brainly.com/question/2285692

#SPJ1

8 0
2 years ago
Whats the effect?
scZoUnD [109]

Answer: A wave

Explanation:

Because it’s the one that’s cause the new medium to go between the two media.

6 0
3 years ago
Read 2 more answers
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