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
andrey2020 [161]
3 years ago
14

What is the molality of a solution in which 3.0 moles of NaCl is dissolved in 1.5 Kg of water?

Chemistry
1 answer:
Nesterboy [21]3 years ago
5 0
Density H2O = 1g/cm³
1,5 kg H2O = 1500g = 1500cm³             (1dm³ = 1000cm³)

3moles of NaCl-----in---------1500cm³ H2O
x moles of NaCl ----in--------1000cm³ H2O
x = 2moles of NaCl

answer: 2 mol/dm³
You might be interested in
This reaction appears to be destroying the logs
Alex_Xolod [135]
What exactly is the question you are asking?
5 0
4 years ago
Science-DNA Codes. Fill out the chart.
MissTica

Answer: (not sure)

T - A  

T - A

T - A

A - T

C - G

G - C

C - G

C - G

A - T

im not sure about the amoni acid produced but

AAA produces -> Lys.

ACG produces -> Thr.

and i don't know about the last one

7 0
3 years ago
Read 2 more answers
Why does chocolate melt faster when crushed?
solong [7]
Less compassionate around the chocolate
5 0
3 years ago
Read 2 more answers
A firefighter applies a force of 2 N to lift the fire hose 3 meters up a ladder to put out a fire. How much work has the firefig
Paraphin [41]

Answer:

6 J

Explanation: Work done(J) = Force(N) × Distance(m) along the direction of force.

Given, Force=2 N, Distance=3 meters

∴ Wok done (J) = 2 × 3 = 6 J.

5 0
4 years ago
Read 2 more answers
how many grams of calcium chloride arw produced from 10 grams of calcium oxide reacting wity an excessnof hydrochloric acid. CaO
Liono4ka [1.6K]

CaCO3 is the reactant in excess. The amount of CaCO3 remaining is 11.5 g . ... Hydrochloric acid and calcium chloride. 2 mol HCl1 CaCl2. Determine the mass of CaCO3 that reacted with the limiting reactant HCl .

4 0
4 years ago
Other questions:
  • For some hypothetical metal the equilibrium number of vacancies at 750°C is 2.8 × 1024 m−3. If the density and atomic weight of
    14·1 answer
  • How many liters of CO2 are in 4.76 moles? (at STP)
    9·1 answer
  • An alkyne of six carbon atoms gives the same single product in its reaction either with bh3 in thf followed by h2o2 /oh–, or wit
    11·2 answers
  • What is the mass in grams of a sample of 1.20 x 10 22 atoms of mercury?
    8·2 answers
  • Why is it important to have evidence to support conclusions? What is the impact of using weak or inaccurate evidence? describe a
    14·1 answer
  • PLEASE HELP !!!!
    8·1 answer
  • How many moles of Mg3(PO4)2 are in 350.00 grams of Mg3(PO4)2?
    11·2 answers
  • Identify each of the following as either an element or Compound. Write (E) for Element and (C)
    8·1 answer
  • Hii pls help me to balance the equation thanksss​
    10·2 answers
  • What are 5 examples of monosaccharides? What is also known as monosaccharide?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!