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
ipn [44]
3 years ago
14

How many grams of the excess reactant remain assuming the reaction goes to completion and that you start with 15.5g of na2s and

12.1g cuso4? reaction: na2s cuso4 ? na2so4 cus a 0.05 b 15.45 c 9.58 d 5.92 e not enough information?
Chemistry
2 answers:
tangare [24]3 years ago
8 0
The reaction between Na2S and CuSO4 will give us the balanced chemical reaction of,
                                     Na2S + CUSO4 --> Na2SO4 + CuS
This means that for every 78g of Na2S, there needs to be 159.6 g of CuSO4. The ratio is equal to 0.4887 of Na2S: 1 of CuSO4. Thus, for every 12.1g of CuSO4, we need only 5.91 g of Na2S. Thus, there is an excess of 9.58 g of Na2S. The answer is letter C. 
Romashka-Z-Leto [24]3 years ago
7 0

Answer:

The answer is 9.58

Explanation:

You might be interested in
What do you observe about the movement of the particles in the medium?
horrorfan [7]

Answer:

The particles of the medium just vibrate in place.

Explanation:

As they vibrate, they pass the energy of the disturbance to the particles next to them, which pass the energy to the particles next to them, and so on. Particles of the medium don't actually travel along with the wave.

5 0
3 years ago
Read 2 more answers
The chemical equation shows the production of magnesium chloride.
Norma-Jean [14]

Answer:

1 gram of H2 will be produced from 12 grams of Mg.

Explanation:

According to Stoichiometry, 0.5 moles of Mg are present. 1 mole of Mg produces 1 mole of H2, so 0.5 moles of Mg will produce 0.5 moles of H2. Multiplying molar mass of H2 i.e. 2 gram/mole with 0.5 moles, we can find the mass of H2 in grams which is 1 gram.

3 0
3 years ago
Which of the following substances has
Dmitry [639]
D.  all of the above, although I do find it hard to believe something like flour would have a melting point, I looked up my answer to double check. 
4 0
3 years ago
Read 2 more answers
An ideal gas is a gas. <br> Perfect<br> Theoretical<br> Real
dusya [7]

Answer:

An ideal gas is a theoretical gas composed of many randomly moving point particles that are not subject to interparticle interactions. The ideal gas concept is useful because it obeys the ideal gas law, a simplified equation of state, and is amenable to analysis under statistical mechanics.

5 0
3 years ago
Read 2 more answers
Please help asap How can the effects of technology be described? This is Science not Chemistry sry
Sindrei [870]

Answer:

Chemistry is used in forensic science to uncover information from physical evidence.

Hope this helps

7 0
3 years ago
Other questions:
  • Which phase lasts longer, a full moon or a new moon?
    5·2 answers
  • What is the product when magnesium reacts with sulfuric acid? mg(s) h2so4(aq) →what is the product when magnesium reacts with su
    14·2 answers
  • Who helps recycle nutrients through an ecosystem? A. producers and decomposers B. producers and consumers C. consumers and decom
    9·2 answers
  • Why are the alkali metals and the halogens very reactive
    15·1 answer
  • FAST I NEED THIS TO STUDY MY QUIZ IS TOMORROW!!!!
    11·2 answers
  • Ms. Sharkey wanted to see which tennis shoes made her run the fastest. She bought
    14·1 answer
  • How to solve this!! plz , i have an exam tommorow
    8·2 answers
  • A 25.0 g sample of an alloy was heated to 100.0 oC and dropped into a beaker containing 90 grams of water at 25.32 oC. The tempe
    10·1 answer
  • Ions Types of Ions Cation Anion 1. H+ 2.O-2 3.Ba2+ 4.Br- 5.Hg2+ 6.Li+ 7.Ca2+ 8.F- 9.S-2 10.Fe3+
    12·1 answer
  • Which equation is balanced? *
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!