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
sergeinik [125]
3 years ago
15

What is the molarity of a solution that contains 1.78 moles of KNO3 dissolved in 2.50L of water?

Chemistry
1 answer:
Alexxandr [17]3 years ago
4 0

Answer:

molarity= 0.712M

Explanation:

From n=CV

n=1.78, C=?, V= 2.5L

1.78=C×2.5

C= 0.712M

You might be interested in
5000kg of ammonium nitrate per square kilometer of cornfield per year. how much nitric acid would be needed to make the fertiliz
Serggg [28]

NH_3+HNO_3-> NH_4NO_3

1 mole of nitric acid produce 1 mole of ammonium nitrate.

moles in 5000 kg of ammonium nitrate :

n=\dfrac{5000\times 1000}{80}\\\\n=62500\ moles ( molecular mass of ammonium nitrate is 80 gm/mol )

So, number of moles of nitric acid required are also 62500 moles.

Mass of 62500 moles of nitric acid :

mass = 62500\times 63 \\\\mass = 3937500\ gram\\\\mass = 393.75\ kg

Hence, this is the required solution.

5 0
3 years ago
Explain how low atomspheric oxygen levels affected alligators growth in terms of celluar respiration
Paraphin [41]

Answer:

Answer: Hyperoxic alligators show significantly lower breathing rates than their siblings in normoxic and hypoxic groups. Conversely, each breath supports greater oxygen consumption in hyperoxic animals than in other groups. Statistical significance between groups was calculated by ANOVA with post hoc Tukey-Kramer

3 0
3 years ago
Using the equation below, if you have 4.3 mol of nitrogen tribromide and
ankoles [38]

Answer:

sodium hydroxide is the limiting reactant

Explanation:

The first step is usually to put down the balanced reaction equation. This is the first thing to do when solving any problem related to stoichiometry. The balanced reaction equation serves as a guide during the solution.

2NBr3 + 3NaOH = N2 + 3NaBr + 3HOBr

Let us pick nitrogen gas as our product of interest. Any of the reactants that gives a lower number of moles of nitrogen gas is the limiting reactant.

For nitrogen tribromide

From the balanced reaction equation;

2 moles of nitrogen tribromide yields 1 mole of nitrogen gas

4.3 moles of nitrogen tribromide will yield 4.3 ×1/ 2 = 2.15 moles of nitrogen gas

For sodium hydroxide;

3 moles of sodium hydroxide yields 1 mole of nitrogen gas

5.9 moles of sodium hydroxide yields 5.9 × 1/ 3= 1.97 moles of nitrogen gas

Therefore, sodium hydroxide is the limiting reactant.

8 0
3 years ago
Give the major force between acetone and chloroform.
EleoNora [17]
Says here the answer is <span>dipole-dipole</span>
4 0
3 years ago
Equivalencia de un año luz en SI
Aleksandr [31]
Hi uhh i've never really typed in Spanish but here I go! :)

 Un ano luz es equivalente a 9.467 PM
4 0
3 years ago
Other questions:
  • Which excerpt from amy tan's "fish cheeks" is most clearly an example of conflict?
    14·2 answers
  • How would a sandblasted rock differ from a rock that hasn't been sandblasted?
    15·1 answer
  • A geochemist measures the concentration of salt dissolved in Lake Parsons, an isolated salt lake. He finds a concentration of 21
    15·1 answer
  • Which statement is most true about a hypothesis?
    11·1 answer
  • What is the periodic table of element
    11·1 answer
  • Which of these terms best describes the following statement?
    14·1 answer
  • PLZ HELP I NEED THIS TO GET DONE!​
    8·1 answer
  • Temperature is the measurement of how hot or cold something is. Agree Disagree
    7·2 answers
  • If there was a drink that could make you younger, how much would you drink from the bottle? If for one drink you become 1 year y
    5·2 answers
  • How much energy is needed to raise the temperature of 2g of water 5°C
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!