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
Vedmedyk [2.9K]
2 years ago
12

In the reaction h2so4 + na2co3 → na2so4 + co2 + h2o 14.5 g of water is collected. what is the molarity of sulfuric acid if 1.78

l were used in the reaction? 1. 146 m 2. 0.453 m 3. 1.43 m 4. 0.697 m 5. 1.78 m6. 0.0046 m
Chemistry
1 answer:
Yuliya22 [10]2 years ago
8 0
H2SO4 + Na2CO3  → Na2SO4 + CO2 + H2O

The molarity  of  sulfuric acid  if  1.78  L  were used  in the   above reaction is
 0.453 M  (answer 2)

      Calculation
find the  moles of water  produced  = mass/molar  mass

=   14.5 g /18 g/mol  = 0.806  moles

by use of of mole ratio  between  H2So4  to H2O   which is 1:1  the    moles    of   H2SO4   is also =  0.806   moles


Molarity  of H2SO4 is therefore =    moles/volume  in   liters

=  0.806   mol/  1.78 L  =  0.453 M (answer 2)
You might be interested in
What is the volume occupied by 4.20 miles of oxygen gas (O2) at STP
Drupady [299]

Answer: 94.13 L

Explanation: In STP in an ideal gas there is a standard value for both temperature and pressure. At STP,pressure is equal to 1atm and the temperature at 0°C is equal to 273.15K. This problem is an ideal gas so we use PV=nRT where R is a constant R= 0.08205 L.atm/mol.K.

To find volume, derive the equation, it becomes V=nRT/P. Substitute the values. V= 4.20 mol( 0.08205L.atm/mol.K)(273.15K) / 1 atm = 94.13 L. The mole units, atm and K will be cancelled out and L will be the remaining unit which is for volume.

8 0
2 years ago
The sum of the number of proteins and neutrons in an atoms nucleus is its __________ ___________.
otez555 [7]

Answer:

Mass Number

Explanation:

In nuclear physics, the sum of the numbers of protons and neutrons present in the nucleus of an atom.

Please vote brainliest!

8 0
2 years ago
Read 2 more answers
Help please. 15.0 moles of gas are in a 3.00L tank at 23.4∘C . Calculate the difference in pressure between methane and an ideal
CaHeK987 [17]
Using PV=nRT or the ideal gas equation, we substitute n= 15.0 moles of gas, V= 3.00L, R equal to 0.0821 L atm/ mol K and T= 296.55 K and get P equal to 121.73 atm. The Van der waals equation is (P + n^2a/V^2)*(V-nb) = nRT.  Substituting  a=2.300L2⋅atm/mol2 and b=0.0430 L/mol, P is equal to 97.57 atm. The difference is <span>121.73 atm- 97.57 atm equal to 24.16 atm.</span>
3 0
3 years ago
Elements that are good conductors, malleable, ductile, and shiny
KIM [24]

Metals are ductile,malleable,good conductors and shiny

4 0
2 years ago
Read 2 more answers
When a compound donates (loses) electrons, that compound becomes oxidized. Such a compound is often referred to as an electron d
rjkz [21]

Assuming this is a true or false question, the answer would be True

3 0
2 years ago
Other questions:
  • Explain how the understanding of atomic emission led to development of the atomic theory.
    10·1 answer
  • Some commercially available algaecides for swimming pools claim to contain 7% copper. Could the method used in this experiment t
    14·1 answer
  • `as much as we would like for it to be the case, we never get all i the product we are supposed to get when we run a real reacti
    8·1 answer
  • Which of the following changes occurs in the nucleus when a position particle is given off
    5·1 answer
  • WILL MARK BRAINLIEST AND 20 POINTS!!!!
    12·1 answer
  • Glucose is one kind of sugar that we get from rice. How many elements does it contain? Use its chemical formula, C6H12O6
    14·1 answer
  • What is an octet of electrons? Which elements contain an octet of electrons?
    11·2 answers
  • What pressure, in atm, would be exerted by 0.023 grams of oxygen (O2) if it occupies 31.6 mL at 91
    12·1 answer
  • Let's say that you were given the following
    11·1 answer
  • 5 Facts about cell division
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!