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
Harlamova29_29 [7]
3 years ago
8

Prepare a 0.50 L of a 1.0 M solution of potassium sulfate. Determine the amount of potassium sulfate needed in correct significa

nt figures.
A) 68 g
B) 87 g
C) 270 g
D) 349 g
I can't figure out the answer.
Chemistry
1 answer:
Lera25 [3.4K]3 years ago
3 0

Answer:

B) 87g

Explanation:

Usatestprep said it

You might be interested in
The electron cloud model describes the __of electrons in an atom.
Alex Ar [27]

Answer:

it's location

Explanation:

4 0
3 years ago
The density of copper is 8.68 g/mL use the density value to determine how many moles are
statuscvo [17]

Answer:

17.1 mol

Explanation:

(8.68g/mL * 125 mL) = 1085 g

1085 g/ (63.55 g/mol) = 17.1 mol

5 0
3 years ago
How many grams of ca are needed to react completely with 2.20 L of a 4.50 m hcl solution
Dmitry_Shevchenko [17]
Ca + 2HCl = CaCl₂ + H₂

c=4.50 mol/l
v=2.20 l

n(HCl)=cv

m(Ca)/M(Ca)=n(HCl)/2

m(Ca)=M(Ca)cv/2

m(Ca)=40g/mol·4.50mol/l·2.20l/2=198 g

198 grams of Ca are needed

5 0
3 years ago
Read 2 more answers
True or False: Dishwashing liquid cleans dirty plates because the nonpolar tail of the detergent dissolves the oily dirt particl
Ghella [55]

Answer:

true

Explanation:

sorry if wrong I hope it right

3 0
2 years ago
What are the n, l, and possible ml values for the 2p and 5f sublevels?
elixir [45]

Answer:

1. 2p sublevels, n = 2, orbital <em>p</em>, l = 1, ml = 0, ±1

2. 5f sublevels n = 5, orbital <em>f</em>, l = 3, ml = 0, ±1, ±2, ±3

Explanation:

The rules for electron quantum numbers are:

1. Shell number, 1 ≤ n

2. Subshell number, 0 ≤ l ≤ n − 1

3. Orbital energy shift, -l ≤ ml ≤ l

4. Spin, either -1/2 or +1/2

So,

1. 2p sublevels,

n = 2, orbital <em>p</em>, so l = 1, ml = 0, ±1

2. 5f sublevels

n = 5, orbital <em>f</em>, so l = 3, ml = 0, ±1, ±2, ±3

7 0
3 years ago
Other questions:
  • While in Europe, if you drive 125 km per day, how much money would you spend on gas in one week if gas costs 1.10 euros per lite
    6·2 answers
  • What is the volume of 1.5 moles of oxygen gas at standard temperature and pressure (STP)?
    9·2 answers
  • Match the vocabulary terms to their definitions.
    14·1 answer
  • Th e enzyme-catalyzed conversion of a substrate at 25°C has a Michaelis constant of 0.045 mol dm−3. Th e rate of the reaction is
    12·1 answer
  • Freediving is an activity in which a person dives, sometimes to great depth, without the use of scuba gear. The diver must hold
    7·1 answer
  • Turning milk into plastic easy
    5·1 answer
  • In the past mining companies were not made responsible for the clean-up of any of
    15·1 answer
  • A rigid container (volume cannot change) is filled with carbon dioxide gas at room temperature. The container is then placed in
    12·1 answer
  • How many grams of sodium metal must be introduced to water to produce 3.3 grams of hydrogen gas?
    5·1 answer
  • How many liters are equal to 8 megaliters (ML)?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!