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
Over [174]
3 years ago
12

A mixture of caco3 and (nh4)2co3 is 60.7 % co3 by mass. part a find the mass percent of caco3 in the mixture.

Chemistry
1 answer:
blagie [28]3 years ago
7 0

The mixture contains:

CaCO3 + (NH4)2CO3 in which the amount of carbonate CO3 = 60.7% by mass

Let, the total mass = 100 grams

Mass of CaCO3 = x grams

Mass of (NH4)2CO3 = y grams

Thus,       x + y = 100 ------------(1)

Mass of CO3 = 60.7% = 60.7 g

Molar mass of CO3 = 60 g/mol

Total # moles of CO3 = 60.7 g/60 g.mol-1 = 1.012 moles

The total moles of CO3 comes from CaCO3 and (NH4)2CO3. Therefore,

moles CaCO3 + moles (NH4)2CO3 = 1.012

mass CaCO3/molar mass CaCO3 + mass (NH4)2 CO3/molar mass = 1.012

x/100 + y/96 = 1.012---------(2)

based on equation 1 we can write: y = 100-x

x/100 + (100-x)/96 = 1.012

x = 71.2 g

Mass of CaCO3 = 71.2 g



You might be interested in
How many Liters are there in 51. 300 cm? (11 = 1000 cm)
Black_prince [1.1K]

Answer:

4,572.67

Explanation:

11 divided by 1000= 90.90

44= 11x

x=4

4 x 11= 4000

44-51.300=6.300

6.300 x 90.90=572.67

4000 + 572.67 = the answer

7 0
3 years ago
3 A roller coaster car travels up a hill until it reaches the top, slowly goes over, and speeds down the hill and through the nu
STALIN [3.7K]

Answer:

3rd law

Explanation:

8 0
3 years ago
One difference between d-glucose and l-glucose is
dimulka [17.4K]
<span>only D-glucose is found in disaccharides and polysaccharides.</span>
6 0
3 years ago
A student is asked to determine the molarity of a strong base by titrating it with 0.250 M solution of H2SO4. The students is in
Lubov Fominskaja [6]

Answer:

i working on this too

i might be able to tell u the right answer when im done

Explanation:

4 0
3 years ago
A scientist would like to make 450.0 mL of a 0.0200 M HCl by diluting a 7.00 M HCl solution. What volume of the 7.00 M HCl solut
bagirrra123 [75]
450.0 ML because it has more solution and it would be better if the sciences users it
6 0
3 years ago
Other questions:
  • If a hard water solution is saturated with calcium carbonate, what volume of the solution has to evaporate to deposit 1.00×102 m
    6·1 answer
  • Describe how phospholipids form a barrier between water inside the cell and water outside the cell
    13·1 answer
  • Enter your answer in the provided box. an aqueous solution containing 10 g of an optically pure substance was diluted to 500 ml
    15·1 answer
  • What is the empirical formula for a compound that is 31.9% potassium, 28.9% chlorine, and 39.2% oxygen?
    5·1 answer
  • A scale model of the solar system
    9·1 answer
  • Consider the reaction. 2 Pb ( s ) + O 2 ( g ) ⟶ 2 PbO ( s ) An excess of oxygen reacts with 451.4 g of lead, forming 367.5 g of
    9·1 answer
  • Which label belongs in the area marked X? can reproduce by budding can reproduce by fragmentation with regeneration reproduce in
    13·1 answer
  • Glycerine is viscous than water?why​
    11·1 answer
  • Scientists group similar organisms together through a process called …..
    11·2 answers
  • For the following reaction, 4.34 grams of sulfur dioxide are mixed with excess oxygen gas . The reaction yields 3.89 grams of su
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!