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
snow_lady [41]
3 years ago
7

Show You Know It: Mole Relationships

Chemistry
1 answer:
natulia [17]3 years ago
8 0

Answer:

1.785 mol

Explanation:

Divide 159 by 89.1 to get moles.

You might be interested in
How many moles would there be in 500,000,000,000 atoms of silver? Show your calculation
muminat

Answer: 3.01 * 10^35

Explanation:

500,000,000,000 * 6.02 * 10^23

4 0
3 years ago
How did Mendeleev arrange the known elements?
Agata [3.3K]
In order of relative atomic mass.
4 0
4 years ago
Read 2 more answers
Why it is difficult to accurately represent ammonia two-dimensionally?
Svetlanka [38]
According to the valence shell electron pair repulsion (VSPER) theory, an ammonia molecule <span> has a </span>trigonal pyramidal<span> shape with an experimental bond angle measure of 106.7 degrees. This is why it is difficult to accurately represent ammonia two-dimensionally because the molecular structure entails a 3-D projection with angles in it unlike the linear structure.</span>
8 0
3 years ago
Assuming that the experiments performed in the absence of inhibitors were conducted by adding 5 μl of a 2 mg/ml enzyme stock sol
prohojiy [21]

Hey there!:

From the given data ;

Reaction  volume = 1 mL , enzyme content = 10 ug ( 5 ug in 2 mg/mL )

Enzyme mol Wt = 45,000 , therefore [E]t is 10 ug/mL , this need to be express as "M" So:

[E]t in molar  = g/L * mol/g

[E]t  = 0.01 g/L * 1 / 45,000

[E]t = 2.22*10⁻⁷

Vmax = 0.758 umole/min/ per mL

= 758 mmole/L/min

=758000 mole/L/min => 758000 M

Therefore :

Kcat = Vmax/ [E]t

Kcat = 758000 / 2.2*10⁻⁷ M

Kcat = 3.41441 *10¹² / min

Kcat = 3.41441*10¹² / 60 per sec

Kcat = 5.7*10¹⁰ s⁻¹

Hence   kcat of   xyzase is  5.7*10¹⁰ s⁻¹


Hope that helps!



4 0
3 years ago
16.6g CaCl2 dissolved in water and completely dissociates. The molality of chloride ions in 300g of water is
vova2212 [387]

Answer:

— The molality of chloride ions in 300g of water is. A) 1.00 molal. B) 0.500 molal. C) 0.0553 molal. D) 0.111 molal.

3 0
3 years ago
Other questions:
  • What’s 73m equal to in dm
    5·1 answer
  • In multicellular organisms the process of cell division leads to what
    13·2 answers
  • Which of the following is NOT a chemical of life? Mineral, water, nucleic acid, carbohydrate
    6·1 answer
  • Pesticides are a type of wastewater<br> pollutant.<br> True<br> False
    8·1 answer
  • Wat substance cannot be separated physically or chemically?
    10·2 answers
  • What is the purpose of the scientific method? ON APEX LEARNING
    10·2 answers
  • PLEASE HELP <br> What is the element dot structure for Li+1? Really confused about the +1 part.
    14·1 answer
  • PLS HELP!!! Science
    14·1 answer
  • Class material don't interact please
    14·1 answer
  • HELP ME PLEASEE!!!! BRAINLIEST FOR CORRECT ANSWER NO COPY AND PASTE. CLICK ON THE IMAGE
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!