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
svetlana [45]
3 years ago
7

Make a plot of arsenate species vs. pH for a 25 mM arsenate solution. Vary pH from 0-14. Neglect activity corrections. A groundw

ater contaminated with arsenate has a pH range of 7.0 to 8.5. What is/are the dominant arsenate species in this range?
Chemistry
1 answer:
dusya [7]3 years ago
5 0
!!!!!!!!!!!!!!!!!!!!
You might be interested in
Which element is least likely to undergo a chemical reaction?
Trava [24]

Answer:

Helium

Explanation:

Helium is most likely to undergo a chemical reaction because

  • It has a complete electron shell, so it does not need any more electrons
  • Its electrons are closest to the nucleus, so it is extremely difficult to remove them
6 0
3 years ago
Read 2 more answers
A student constructs a coffee cup calorimeter and places 50.0 mL of water into it. After a brief period of stabilization, the te
Grace [21]

Answer:

The calorimeter constant is  = 447 J/°C

Explanation:

The heat absorbed or released (Q) by water can be calculated with the following expression:

Q = c × m × ΔT

where,

c is the specific heat

m is the mass

ΔT is the change in temperature

The water that is initially in the calorimeter (w₁) absorbs heat while the water that is added (w₂) later releases heat. The calorimeter also absorbs heat.

The heat absorbed by the calorimeter (Q) can be calculated with the following expression:

Q = C × ΔT

where,

C is the calorimeter constant

The density of water is 1.00 g/mL so 50.0 mL = 50.0 g. The sum of the heat absorbed and the heat released is equal to zero (conservation of energy).

Qabs + Qrel = 0

Qabs = - Qrel

Qcal + Qw₁ = - Qw₂

Qcal = - (Qw₂ + Qw₁)

Ccal . ΔTcal = - (cw . mw₁ . ΔTw₁ + cw . mw₂ . ΔTw₂)

Ccal . (30.31°C - 22.6°C) = - [(4.184 J/g.°C) × 50.0 g × (30.31°C - 22.6°C) +  (4.184 J/g.°C) × 50.0 g × (30.31°C - 54.5°C)]

Ccal  = 447 J/°C

5 0
3 years ago
Sodium ethanoate ? --> solid sodium ethanoate
timurjin [86]
I’m pretty sure it craters sodium acetate
7 0
3 years ago
In an electric current, the ___ particles flow or are pushed along a path
MakcuM [25]
The negative particles flow or are pushed along a path
7 0
1 year ago
You're at the zoo and have a big red 1.80 L helium balloon. The barometric pressure today is 785 mmHg. Then you hear the roar of
fomenos

Answer: The volume of the balloon up there is 6.192 L.

Explanation:

Given: V_{1} = 1.80 L,    P_{1} = 785 mm Hg (mm Hg = 0.00131579) = 1.032 atm

P_{2} = 0.300 atm,       V_{2} = ?

Formula used to calculate volume is as follows.

P_{1}V_{1} = P_{2}V_{2}

Substitute the value into above formula as follows.

P_{1}V_{1} = P_{2}V_{2}\\1.032 atm \times 1.80 L = 0.300 atm \times V_{2}\\V_{2} = 6.192 L

Thus, we can conclude that the volume of the balloon up there is 6.192 L.

8 0
3 years ago
Other questions:
  • The strongest bases are hydroxides
    6·2 answers
  • Which of these pairs of elements have the same number of valence electrons?
    14·2 answers
  • In cats, the allele B is for black fur and allele b is for brown fur. Identify the phenotypes of the following individuals who h
    10·1 answer
  • This is a graph of the mean, or average, number of
    14·1 answer
  • When a gas is heated,
    12·1 answer
  • Which reaction type is really part of another type of reaction but treated separately? Explain
    14·1 answer
  • Which of the following is one of the energy conversions taking place in a campfire? Heat to light Heat to kinetic Chemical to li
    10·2 answers
  • The correct answer (reported to the proper number of significant figures) to the
    15·1 answer
  • The group of atoms that is responsible for the characteristic properties of a family of organic compounds is called a/an _______
    5·1 answer
  • What would happen to the oxygen atoms in ozone if the ozone layer were completely destroyed by ultraviolet radiation?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!