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
Lunna [17]
3 years ago
15

Zach needs to make a 2.75 m solution of NaOH(molar mass=40.00g/mol) using 350. g of water. What mass of NaOH should he dissolve

in the water to make this solution? Please show the steps
Chemistry
1 answer:
goldfiish [28.3K]3 years ago
3 0
Molality = number of mol solute/ 1000 g solvent = (2.75 mol NaOH)/1000g water


\frac{2.75( mol NaOH)}{1000(g/ water)} = \frac{x (mol  NaOH)}{350(g/water)} 


,
x= \frac{2.75*350}{1000} = 0.963 (mol NaOH)

0.963 (mol NaOH)* \frac{40.00 (g NaOH)}{1 ( mol NaOH)} =38.5 (g NaOH)


You might be interested in
What steps are involved in the process that turns sediment back to rock? Select all that apply.
jeyben [28]

Answer:

compaction and cementation

I love science by the way

4 0
3 years ago
Read 2 more answers
Many people think that summer is warmer because the earth is closer to the sun at that time of year. explain why
Marysya12 [62]
Summer days are warmer because the path of the sun is longer and we have more direct sunlight during that time
5 0
3 years ago
For the reaction: CH₃OH(g) + heat ↔ CO(g) + 2H₂(g) How will the equilibrium shift if the overall pressure is decreased?
MakcuM [25]

Answer:

To the right

Explanation:

CH₃OH(g) + heat <=> CO(g) + 2H₂(g)

According to Le Chatelier's principle, a decrease in pressure will shift the equilibrium position to the side where there is a higher volume.

From the balanced equation above,

Volume of reactant = 1

Volume of product = 1 + 2 = 3

From the above, we can see that the volume of the gasous product is higher than the volume of the gasous reactant.

Therefore, a decrease in the pressure of the system will shift the equilibrium position to the right.

7 0
3 years ago
How many moles is 1.25 x 1024 atoms of bromine?
Irina-Kira [14]

Answer:

2.08 moles (3 s.f.)

Explanation:

number of moles

= number of atoms ÷ Avogadro's constant

Avogadro's constant= 6.022 ×10²³

Thus, number of moles

= 1.25×10²⁴ ÷ (6.022 ×10²³)

= 2.08 moles (3 s.f.)

8 0
3 years ago
Mixture with two or more substances that are evenly mixed
sertanlavr [38]
A homogeneous mixture, the substances are uniformly distributed throughout the mixture
8 0
3 years ago
Other questions:
  • How much organic chemistry do i need to know for polymers?
    10·1 answer
  • What volume of oxygen at 423.0 K and a pressure of 127.4 kPa is produced by the decomposition of 129.7 g of BaO2 to BaO and O2?
    14·1 answer
  • Units used to measure the rate of electron flow
    6·1 answer
  • Theresa creates an experiment where she mixes two red-colored substances together in a container and observes the solution slowl
    5·2 answers
  • In the reactants there is a curvy arrow, what does the direction of the arrow indicate?
    15·2 answers
  • Explain why all glassware must be dry and the solvent anhydrous during formation and reaction of a grignard reaction. Further, e
    10·1 answer
  • What do plants do with sugar? *
    8·1 answer
  • I need help writing a LAB REPORT about NATURAL SELECTION
    12·1 answer
  • Fill in the blank...<br> Each element is made up of only one kind of ________
    6·1 answer
  • Select the structure that corresponds
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!