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
german
3 years ago
12

How can I calculate the mass percent of carbon, nitrogen and oxygen in acetamide, C2H5NO?

Chemistry
1 answer:
Arte-miy333 [17]3 years ago
6 0

Partial mass of C, 12*2 = 24

Partial mass of H, 1*5 = 5

Partial mass of N, 14

Partial mass of O, 16

Now, total molar mass would be 24+5+14+16 = 59

mass % of carbon = 24 * 100 / 59 = 40.67%


You might be interested in
Do your cells have access to everything they need over the first 4 or 5 hours that you are lost? Yes or No?
77julia77 [94]

Explanation: cell in the body is enclosed by a cell (Plasma) membrane. The cell membrane separates the material outside the cell, extracellular, from the material inside the cell, intracellular. ... All materials within a cell must have access to the cell membrane (the cell's boundary) for the needed exchange

**Answer**: The answer would be Yes I believe

4 0
3 years ago
A solution has a pH of 12. This solution is:
kolezko [41]

Answer:

basic

Explanation:

pH 7: neutral

12>7

so it is basic

(if <7 than acidic)

3 0
3 years ago
a strip of impure copper is given to you. how will you purify it by using chemical effects of electric current ?
Oksi-84 [34.3K]

This can be done through electrolysis. Electrolysis is the separation of a substance  into two or more substances that may differ from each other and from the original substance by passing an electric current through a solution that contains ions.

In the case of copper,  we use a  copper (II) sulphate  solution which we put in a large beaker. The impure copper will be used as the positive electrode (anode) and for the negative electrode (cathode)  will be a bar of pure copper.

When the electric current is switched on, the bar of pure copper which is the cathode  increases greatly in size as copper ions leave the anode of impure copper and attach to  the cathode.  The anode becomes smaller and smaller as it loses copper ions until all that is left of it is impurities in form of a sludge beneath it.


6 0
3 years ago
Read 2 more answers
a. Compare the motion of the particles as a solid, liquid, and gas. b. What happens to the intermolecular bonds during phase cha
natta225 [31]
The answer A I’m positively absolutely
3 0
3 years ago
Calculate the volume of 0.100 m hcl required to neutralize 1.00 g of ba(oh)2 (molar mass = 171.3 g/mol).
dedylja [7]

The balanced chemical equation between HCl and Ba(OH)_{2} is:

2HCl (aq) + Ba(OH)_{2}(aq) -->BaCl_{2}(aq) + 2 H_{2}O(l)

Moles of Ba(OH)_{2} = 1.00 g Ba(OH)_{2} * \frac{1 mol Ba(OH)_{2}}{171.3 g Ba(OH)_{2}} = 0.00584 mol Ba(OH)_{2}

Moles of HCl required to neutralize Ba(OH)_{2}:

0.00584 mol Ba(OH)_{2} * \frac{ 2 mol HCl}{1 mol Ba(OH)_{2}} =   0.01168 mol HCl

Calculating the volume of HCl from moles and molarity:

0.01168 mol HCl * \frac{1 L}{0.100 mol} * \frac{1000 mL}{1 L} = 116.8 mL

7 0
3 years ago
Read 2 more answers
Other questions:
  • Is this any better??
    12·1 answer
  • What is the source of electrons for the reaction center of photosystem ii in photosynthesis?
    13·1 answer
  • What is the order in which electrons start filling the orbitals?
    12·2 answers
  • How are an earthquake's epicenter and focus related
    15·1 answer
  • Bob, Jill, Kim, and Steve measure an object's length, density, mass, and brightness, respectively. Which student must derive a u
    9·1 answer
  • when obtaining energy, why mushrooms are more like elephants eating and not like dandelions absorbing sunlight.
    5·1 answer
  • 7.25 x 10-6<br><br> What is the scientific notation
    14·2 answers
  • What is the different between a mixture and a compound?
    5·1 answer
  • The temperature of evaporation is much higher for water than for alcohol. Without knowing more about the chemistry of alcohol, w
    12·1 answer
  • Does 4 have an infinate number of significant digits?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!