Explanation:
The chemical reaction equation will be as follows.
![CuCl_{2} + (NH_{4})_{2}S \rightarrow 2NH_{4}Cl + CuS](https://tex.z-dn.net/?f=CuCl_%7B2%7D%20%2B%20%28NH_%7B4%7D%29_%7B2%7DS%20%5Crightarrow%202NH_%7B4%7DCl%20%2B%20CuS)
As 1 mole
reacts with 1 mole of
Hence, moles of
= Molarity × Volume (in mL)
= 0.5 × 38.0 mL
= 0.019 mol
Moles of
= Molarity × Volume (in mL)
= 0.6 × 42.0 mL
= 0.0252 mol
As moles of CuS is less than the moles of
. This means that CuS is the limiting reagent.
Thus, maximum moles of CuS formed are 0.019 mol. As molar mass of CuS is 95.6 g/mol.
Therefore, maximum mass of CuS can be formed is ![95.6 g/mol \times 0.019 mol](https://tex.z-dn.net/?f=95.6%20g%2Fmol%20%5Ctimes%200.019%20mol)
= 1.8164 g
Thus, we can conclude that maximum mass of CuS formed is 1.8164 g.
Answer:
what's the matter? im an ally... and fully support the lgbtq+ so i might have some advice?
Explanation:
2. This question has two parts. First, answer
Part A. Then, answer Part B. Part A
In Passage 2, what theme is suggested by Graham’s situation?
D People will do whatever is necessary to keep what is important to them.
Part B
Which quotation helps develop the theme in Part A?
D “Graham turned to the old man and asked, ‘How are we going to find it?’” (paragraph 25)
Part A
Option D: This answer is correct. The man agrees to the risky proposition to search for buried treasure since it seems to be the only way for him to keep his family's property.
Part B
Option D: This answer is correct. This quotation shows that Graham is considering the man's proposition to look for buried treasure in the hopes of keeping his family's property
Answer:
An exact number is a value that is known with complete certainty. Like for Examples of exact numbers are counted numbers of objects or certain unit conversions. For example, there are exactly 3 feet in 1 yard. There are exactly 12 eggs in a dozen. A class may contain exactly 25 students.
Explanation:
Hope this helps.
Have a good night ma´am/sir.
Be safe!
Answer:
Explanation:
A scientific investigation typically begins with observations. Observations often lead to questions. A hypothesis is a possible logical answer to a scientific question, based on scientific knowledge. A prediction is a statement that tells what will happen under certain conditions