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
Schach [20]
3 years ago
9

Find the mass in grams of aluminum nitrate, Al(NO3)3, required to mix with 750 g of water to makea 1.5m solution.

Chemistry
1 answer:
Law Incorporation [45]3 years ago
7 0
Answer:
            Mass  =  239.62 g

Explanation:

Molality is given as,

                               m  =  Moles of Solute / Kg of Solvent   ---  (1)

Data Given;
                   Molality  =  1.5 m

                   Mass of Solvent  =  750 g  =  0.75 Kg

Solving eq. 1 for Moles,

                          Moles  =  Molality × Mass of Solvent

Putting values,
                          Moles  =  1.5 mol.Kg⁻¹ × 0.75 Kg

                          Moles  =  1.125 mol

Calculating mass from moles,

                          Moles  =  Mass / M.mass
Or,
                          Mass  =  Moles × M.mass

Putting values,
                          Mass  =  1.125 mol × 213 g.mol⁻¹

                          Mass  =  239.62 g
You might be interested in
A gas has a volume of 20.0 L at a pressure of 950 mmHg with a temperature of 125.0 o If the conditions are changed to STP, what
ehidna [41]
Use formula: Initial Pressure x Initial Volume/Initial temperature = Final pressure x Final Volume/Final Temperature => 17.15L

6 0
3 years ago
Science question down below
aliya0001 [1]
Option 1/A (It is the first one)
6 0
3 years ago
3.1
stich3 [128]

Answer:

C3H8 +5O2 arrow 3CO2 +4H2O

4 0
3 years ago
Combining a base and an acid forms
Rainbow [258]

Answer: C. Salt and Water

Explanation:

The reaction between an acid and a base will have salt and water as its end product. This process is known " Neutralization  Reaction".

HCl    +                   NaOH         ----------->            NaCl       +           H2O

Hydrochloric          Sodium                                  Sodium                Water

Acid                     Hydroxide (base)                   Chloride(Salt)                            

4 0
3 years ago
On July 8th, I will be 8.51472x10^8 seconds old. How old will I be in years? (Assume 365 days in a year.) Group of answer choice
KatRina [158]

Answer:

26.98

almost 27 years

5 0
3 years ago
Other questions:
  • What method would best allow these three different scientists to demonstrate their concepts?
    7·1 answer
  • If A + B → C + D You start with 50 g of A and 30 g of B and 40 g of C are produced, how many g of D would also be produced?
    12·1 answer
  • What is equal to the number of particles in 36 grams of carbon-12?
    6·1 answer
  • what scientist design an experiment that enabled the first successful detection of an individual particle
    11·1 answer
  • What is the difference between the number of electrons in an atom of selenium?
    6·1 answer
  • What is 8÷39.2 help me please
    6·1 answer
  • In a chemical reaction, 300 grams of reactant A are combined with 100 grams of reactant B. Both A and 
    15·1 answer
  • Think of the different types of reactions you have learned about. How can you tell if they absorb energy or release energy, and
    5·1 answer
  • What is the source of genetic material in organisms that reproduce sexually?
    9·2 answers
  • Identify the products of the reaction between 2KOH and H₂SO4- OH. ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!