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
MaRussiya [10]
2 years ago
15

A 100.0 mL sample of a 0.200 M aqueous solution of K2CrO4 was added to 100.0 mL of a 0.100 M aqueous solution of BaCl2. The mixt

ure was stirred and the precipitate was collected, dried carefully, and weighed. How many grams of precipitate should be obtained? The reaction is shown below: K2CrO4(aq) + BaCl2(aq) ď‚® BaCrO4(s) + 2 KCl(aq) A. 2.05 g B. 2.53 g C. 5.07 g D. 6.16 g E. 7.60 g
Chemistry
1 answer:
stepan [7]2 years ago
5 0
The correct answer is 2.53 g of precipitate, BaCrO4.

You might be interested in
2. How much heat is released when 432g of water cools down from 710C to 180C?
nadya68 [22]
The heat released by the water when it cools down by a temperature difference AT

is Q = mC,AT

where

m=432 g is the mass of the water

C, = 4.18J/gºC

is the specific heat capacity of water

AT = 71°C -18°C = 530

is the decrease of temperature of the water

Plugging the numbers into the equation, we find

Q = (4329)(4.18J/9°C)(53°C) = 9.57. 104J

and this is the amount of heat released by the water.
7 0
3 years ago
A scientist measures out equal volumes and concentrations of hydrochloric acid and sodium hydroxide solutions. When mixed, these
olasank [31]

Answer:

Neutral solution is formed.

Explanation:

When the hydrochloric acid and sodium hydroxide which is a strong base are combined together, it produces sodium chloride which is a salt and water. This solution is known as Neutral solution because the solution do not have the characteristics or properties of either an acid or a base. If the concentration of one of the reactant is higher as compared to another reactant so the product has the characteristics of that reactant.

8 0
2 years ago
Read 2 more answers
What is the most important part of driving
Romashka-Z-Leto [24]
I think learn to drive is the most important part
4 0
3 years ago
Read 2 more answers
What is the pressure of a mixture of oxygen, nitrogen and carbon dioxide gases if the pressures of these gases are as follows: P
AleksandrR [38]

Answer:

his is an example of a first-year chemistry question where you must first convert two of the pressures to the units of the third and add them up, per Dalton’s law of additive pressures. There are three possible answers, one for each of the three pressure units.

1 atm = 760 torr …… torr and mm Hg are the same

1 atm = 101.3 kPa

Dalton’s law:

P(total) = P(O2) + P(N2) + P(CO2)

Explanation:

Gases will assume whatever pressure depending on the equation of state of the mixture (in this case) and the volume htey are contained in. That could be the ideal gas law and simple mixing law, If you are quoting the partial pressures which you call simply “the pressure” of each gas, and that these refer to their values in the present mixture, then yes, we would add them up. The pressures are low enough for the ideal gas law to apply provided the temperature is not extremely low as well .

8 0
2 years ago
But in your own words
8_murik_8 [283]

Answer:

gametes are sperm and an egg individually. when the gametes come together and fertilize, they form a zygote.

6 0
3 years ago
Other questions:
  • A. H+ concentration lower than OH- concentration:
    14·1 answer
  • An oscilloscope is a machine that gives a picture of a sound wave. Low-pitched sounds have wide waves, and high-pitched sounds h
    10·2 answers
  • c. When we heat water up by the Bunsen burner, what temperature is the boiling water? After 10 minutes
    12·1 answer
  • How do scientists perform an artificial transmutation
    13·2 answers
  • Which voice part sings the lowest notes in an SATB choir?
    9·1 answer
  • Write a balanced molecular equation and a net ionic equation for the reaction that occurs when magnesium hydroxide reacts with a
    15·1 answer
  • Im in the middle of a chem test and i literally have no clue what is happening
    8·1 answer
  • What's the mass in grams of 0.334 moles of sucrose (C12H22O11)?
    14·1 answer
  • How do you feel about your performance on this "STEP TEST"?
    12·1 answer
  • Which option is an example of a chemical change?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!