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
kolbaska11 [484]
2 years ago
15

PLS HELP Students in a chemistry class added 5 g of Zinc (Zn) to 50 g of hydrochloric acid (HCl). A chemical reaction occurred t

hat produced zinc chloride (ZnCl2) and 6 g of hydrogen gas (H2).
Zn+ HCl → ZnCl2 + H2

What is the mass of Zinc Chloride (ZnCl2)?

A. 49 g

B. 55 g

C. 61 g

D. Not enough information to determine the mass of ZnCl2
Chemistry
1 answer:
Vitek1552 [10]2 years ago
4 0

Answer: In simplest case mass of reactants is same as mass of products.

Without thinking this question deeper, mass of ZnCl2 would be 49, but..

Explanation: Reaction should be  Zn + 2 HCl ⇒ ZnCl2 + H2

Amount of zinc is  5 g / 65,38 g/mol = 0,076476 mol and amount

of Hydrogen Chloride is 50 g / 36.458 g/mol = 1,371 mol.

Althought HCl is needed 0.152 moles, zinc is an limiting reactant.

So it is possible to produce only 0.076476 mol Hydrogen and its mass

is 0.154 g.  Mass of ZnCl2 would be 0.076476 mol · (65.38 + 2·35.45) =

 10.42 g

You might be interested in
identify the correct practices when setting up the condenser for a reflux system. select one or more:
erastovalidia [21]

The correct practices when setting up the condenser for a reflux system are option(c)and (d)i.e, to Grease the joint between the flask and the condenser and Align the flask so that the condenser is vertical.

A condenser's purpose is to transfer heat from a working fluid—in a steam power plant, for instance, water—to a secondary fluid or the ambient air. The effective heat transfer that takes place during phase shifts, in this case during the condensation of vapor into a liquid, is what powers the condenser.

A condenser is a heat exchanger used in heat transfer systems to cool a gaseous substance so that it condenses into a liquid condition. By doing this, the substance releases its latent heat and transfers it to the environment. On the back of a refrigerator, the condenser is located and is probably pretty dusty. The refrigerant cools down within and condenses, changing back from a gas to a liquid.

Learn more about condenser here:

https: //brainly.com/question/15563071

#SPJ4

The complete question is:

Identify the correct practices when setting up the condenser for a reflux system.

Select one or more:

-Clip the stopper in the top of the condenser.

-Start the heat before the condenser water to test the set-up.

-Grease the joint between the flask and the condenser.

-Align the flask so that the condenser is vertical.

6 0
1 year ago
Will mark brainliest
andre [41]
The answer it the 3 one I hope this helps
4 0
3 years ago
How to obtain pure aluminium oxide from sodium aluminate. pls help.​
cupoosta [38]

Answer:

<em>By</em><em> </em><em>Bayer</em><em> </em><em>process</em><em>.</em>

Explanation:

<em>In the Bayer process, bauxite ore is heated in a pressure vessel along with a sodium hydroxide solution (caustic soda) at a temperature of 150 to 200 °C. At these temperatures, the aluminium is dissolved as sodium aluminate (primarily [Al(OH)4]−) in an extraction process.</em>

6 0
3 years ago
How do I find the over all charge of protons?
d1i1m1o1n [39]
The charge of a proton is always +1
8 0
3 years ago
Read 2 more answers
The phosphorylation of fructose 6-phosphate to fructose-1,6-bisphosphate is the committed step in glycolysis because?.
Daniel [21]

The phosphorylation of fructose 6-phosphate to fructose-1,6-bisphosphate is the committed step in glycolysis because. it is the rate-limiting step

<h3>What is phosphorylation?</h3>

The first step in the metabolism of carbohydrates is frequently their phosphorylation. Because the phosphate group stops the molecules from migrating back across the transporter, phosphorylation enables cells to store carbohydrates. Glucose phosphorylation is a crucial step in the metabolism of sugar. In the first phase of glycolysis, D-glucose is converted to D-glucose-6-phosphate using the chemical equation D-glucose + ATP D-glucose-6-phosphate + ADP G° = 16.7 kJ/mol (° signifies measurement under standard conditions).

The rate-limiting stage in the liver's metabolism of glucose is the initial rate of phosphorylation of glucose (ATP-D-glucose 6-phosphotransferase) and non-specific hexokinase. Hepatic cells are freely permeable to glucose (ATP-D-hexose 6-phosphotransferase).

encouraging certain glucose transporters to translocate to the cell membrane.

To learn more about phosphorylation from the given link:

brainly.com/question/2138188

#SPJ4

7 0
1 year ago
Other questions:
  • A sample of water and alcohol are mixed. What method should be used to separate them? -Screening -Filtering -Fractional distilla
    12·2 answers
  • Plz help if you can!!!
    14·2 answers
  • Please Helpp
    10·1 answer
  • Which is a nonmetal ?<br><br> 1. Sodium (Na)<br> 2.lithium(Li)<br> 3. Calcium (ca) <br> 4. Carbon(c)
    5·2 answers
  • Faunal succession and fossil correlation relate to the principle of superposition because there are fossils of certain organisms
    10·2 answers
  • Completely classify jet fuel.
    8·1 answer
  • The human eye is a complex sensing device. The optic nerve needs a minimum of 2.10x10^-17J of energy to trigger a series of impu
    6·1 answer
  • why a solution of perchloric acid in water is a good conductor of electricity while distilled water and perchloric acid separate
    6·1 answer
  • A student ran the following reaction in the laboratory at 671 K: 2NH3(g) N2(g) + 3H2(g) When she introduced 7.33×10-2 moles of N
    6·1 answer
  • What changes within the star A lead to the red giant B?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!