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
lana [24]
3 years ago
15

Phosphorous reacts with bromine to form phosphorous tribromide. If 35.0 grams of bromine are

Chemistry
1 answer:
tatyana61 [14]3 years ago
8 0
Phosphorous reacts with bromine to form phosphorous tribromide. If 35.0 grams of bromine are
reacted and 27.9 grams of phosphorous tribromide are formed in laboratory, what is the percent
yield?
You might be interested in
What is the density of a liquid if it's volume is 125 mL and it's mass is 50g?
masha68 [24]

Answer:

0.4g/ml

Explanation:

density= mass/volume

density=50g/125ml

density=0.4g/ml

6 0
3 years ago
A chemist must dilute 97.1 ml of aqueous magnesium fluoride solution until the concentration falls to 389 microMolarity . He'll
mojhsa [17]

Answer:

0.302L

Explanation:

<em>...97.1mL of 1.21m M aqueous magnesium fluoride solution</em>

<em />

In this problem the chemist is disolving a solution from 1.21mM = 1.21x10⁻³M, to 389μM = 389x10⁻⁶M. That means the solution must be diluted:

1.21x10⁻³M / 389x10⁻⁶M = 3.11 times

As the initial volume of the original concentration is 97.1mL, the final volume must be:

97.1mL * 3.11 = 302.0mL =

0.302L

6 0
3 years ago
The isotope \left.\begin{array}{r}212 \\ 83\end{array}\right? Bi has a half-life of 1.01 yr. What mass (in mg) of a 2.00-mg samp
anyanavicka [17]

Half-life is the length of time it takes for half of the radioactive atoms of a specific radionuclide to decay. A good rule of thumb is that, after seven half-lives, you will have less than one percent of the original amount of radiation.

<h3>What do you mean by half-life?</h3>

half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive.

<h3>What affects the half-life of an isotope?</h3>

Since the chemical bonding between atoms involves the deformation of atomic electron wavefunctions, the radioactive half-life of an atom can depend on how it is bonded to other atoms. Simply by changing the neighboring atoms that are bonded to a radioactive isotope, we can change its half-life.

Learn more about half life of an isotope here:

<h3>brainly.com/question/13979590</h3><h3 /><h3>#SPJ4</h3>
5 0
1 year ago
Sodium and ____ are the two primary electrolytes.Question 5 options:
Pachacha [2.7K]

C, potassium. Hope this helps.

5 0
3 years ago
A __________ has distinct properties and composition that never vary.
erik [133]
<h2>Answer </h2>

Matter

<u>Explanation </u>

A matter has distinct properties and composition that never vary. The matter is anything which possesses mass and occupies space. The matter has different characteristics and a distribution that does not change from unit to unit. Materials which cannot be disintegrated into simpler materials. Each is made of only one kind of atom in subatomic level. For example, a chair, table, and similar everything that has mass and occupies space is matter.

3 0
3 years ago
Read 2 more answers
Other questions:
  • How many significant figures are in $10,000,210<br> 7<br> 3
    7·2 answers
  • What effect does an increase in products have on the reaction rate of a mixture at equilibrium? A. The forward reaction rate inc
    8·1 answer
  • Indicates which of the following radical chemical species and explains why
    9·1 answer
  • the general name for a substance added to a reaction that affects the rate but is not consumed in the reaction is called a_____.
    10·2 answers
  • A company uses a substance that is Solid under normal conditions this substance will be used in extreme conditions which could m
    7·1 answer
  • Bromophenol blue is the indicator used in detecting the endpoint for the antacid analysis in this experiment. what is the expect
    12·1 answer
  • If an insect population increases and then decreases as the available supply of food changes, what does this demonstrate
    11·1 answer
  • Which of the following best describes an electron?
    14·1 answer
  • Which of the following uses mechanical energy to function?
    13·2 answers
  • A car traveling 65 km/h south passes another car accelerating to 80 km/h south in 8 seconds. What is the car acceleration?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!