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
Semenov [28]
2 years ago
8

If 4.50 g of (nh4)2so4 is dissolved in enough water to form 250. ml of solution, what is the molarity of the solution?

Chemistry
1 answer:
natima [27]2 years ago
8 0
The molarity of a solution is the number of moles of a substance in one liter of that substance. 
The molar mass of ammonium sulfate (NH4)2SO4 is 132.14 grams/mole
Calculate the moles of ammonium sulfate:
(4.50 grams)/(132.14 grams/mole) = 0.0341 moles of ammonium sulfate
convert mL to Liters 250. mL becomes 0.250 liters
Take the number of moles over the number of liters
0.0341 moles / 0.250 liters = 0.136 molar or 0.136M = molarity of the solution
You might be interested in
Please help this is due today which ones are reactive and which arent?​
BARSIC [14]

Answer:

I' really don't know I'm sorry

4 0
2 years ago
Which of the following expressions best represents a second order rate law?
Ksivusya [100]
I think the correct answer would be C. The expression that would best represent a second order rate law would be r =k[X][Y]. Reaction with this rate law are those that depend on the concentration of two first order reactants or a second order reactant.
8 0
3 years ago
Silver nitrate solution reacts with calcium chloride solution according to the equation: 2 AgNO3 + CaCl2 → Ca(NO3)2 + 2 AgCl All
HACTEHA [7]

Answer:

14.33 g

Explanation:

Solve this problem based on the stoichiometry of the reaction.

To do that we need the molecular weight of the masses involved and then calculate the number of moles, find the limiting reagent and  finally calculate the mass of AgCl.

                      2 AgNO₃   + CaCl₂    ⇒   Ca(NO₃)₂   + 2 AgCl

mass, g                  6.97        6.39                                     ?

MW ,g/mol         169.87      110.98                                  143.32

mol =m/MW           0.10         0.06                                    0.10

From the table above AgNO₃ is the limiting reagent and we will produce 0.10 mol AgCl which is a mass :

0.10 mol x 143.32 g/mol = 14.33 g

5 0
3 years ago
What happens when lead nitrate and potassium iodide are mixed?
lisov135 [29]

Answer:

Explanation: A yellow precipitate o lead iodide is formed. see equation of reaction below: 2KI + Pb(NO3)2 → PbI2 + 2K(NO3)2

Th PbI2 is the insoluble yellow precipitate

7 0
3 years ago
Explain the importance of carbon's ability to form covalent bonds in straight chains, branched chains, or rings.
viktelen [127]
Carbon is the element at the heart of all organic compounds, and it is such a versatile element because of its ability to form straight chains, branched chains, and rings. Because these chains and rings can have all sorts of different functional groups in all sorts of different ways (giving the compond all sorts of different physical and chemical properties), carbon's ability to form the backbone of these large structures is critial to the existence of most chemical compounds known to man. Above all, the organic molecules crucial to the biochemical systems that govern living organisms depend on carbon compounds.
8 0
3 years ago
Other questions:
  • A piece of rubber has a mass of 495 kg and a volume of 355 liters. Will it float in water, which has a density of 1.0 g/mL?
    9·1 answer
  • How much of the excess reactant remains after the reaction?
    13·2 answers
  • 29) What type of chemical reaction is given by the following balanced equation: Al2O3 → Al + O2
    15·1 answer
  • If an atom contains 1 electron and 1 proton will it carry any charge or not?
    7·1 answer
  • Plutonium-236 is an alpha emitter with a half-life of 2.86 years. how long will it take for the 1.10 mg sample of pu−236 to deca
    11·1 answer
  • Energy conversions _____. can lose energy as sound can be 100 percent efficient if controlled properly are calculated by multipl
    10·2 answers
  • Two liquids are shaken together in a test tube to produce a uniform liquid that does not separate into layers. Which of the foll
    10·2 answers
  • What is the molarity of a solution containing 8.0 moles of solute in a 569 ml of solution?
    6·1 answer
  • How are acids and alkalis<br> similar?
    14·2 answers
  • An element emits light at a wavelength of 584 nm. What is the energy of the photon with that wavelength?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!