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
Slav-nsk [51]
3 years ago
11

Determine the concentration of sulfuric acid that needed 47 mL of 0.39M potassium hydroxide solution to neutralize a 25 mL sampl

e of the sulfuric acid solution?
Chemistry
1 answer:
77julia77 [94]3 years ago
7 0

Answer:

<u></u>

  • <u>0.37M</u>

Explanation:

Since sulfuric acid, H₂SO₄, is a diprotic acid and potassum hydroxide, KOH, contains one OH⁻ in the formula, the number of moles of potassium hydroxide must be twice the number of moles of sulfuric acid.

<u>1. Determine the number of moles of KOH in 47mL of 0.39M potassium hydroxide solution</u>

  • number of moles = molarity × volume in liters
  • number of moles = 0.39M × 47mL × 1liter/1,000 mL = 0.1833mol

<u>2. Determine the number of moles of sulfuric acid needed</u>

  • number of moles of H₂SO₄ = number of moles of KOH/2 = 0.1833/2 = 0.009165mol

<u>3. Determine the concentration that contains 0.009165 mol in 25mL of the acid.</u>

  • Molarity = number of moles / volume in liters
  • M = 0.009165mol/(25mL) × (1,000mL/liter) = 0.3666M

Round to two significant figures: 0.37M

You might be interested in
In what type of climate do trees produce narrower rings?
poizon [28]

Answer:

cool and dry

                 

               

8 0
2 years ago
A compound has the empirical formula CH2O. If the compound’s molecular mass is 180 g/mol, determine the molecular formula of the
Umnica [9.8K]
The molecular formula will be a multiple of the empirical CH2O. One unit of CH2O has a mass of 12+2*1+16 = 30 g. This means that if our compound has a molecular mass of 180 g/mol, we can divide 180 / 30 = 6 units, and our compound has 6 units of CH2O. This means that its molecular formula is C6H12O6.
3 0
2 years ago
Which elements are solid at room temperature
Kryger [21]

Answer:bromine , neon , helium , argon , lithium , beryllium

Explanation:

8 0
3 years ago
What volume in L of a 0.724 M Nal solution contains 0.405 mol of Nal?
Setler [38]

Answer:

0.559 L

Explanation:

Step 1: Given data

  • Moles of sodium iodide (n): 0.405 mol
  • Molar concentration of sodium iodide (M): 0.724 M (0.724 mol/L)

Step 2: Calculate the volume of solution (V)

The molarity is equal to the moles of solute divided by the liters of solution.

M = n/V

V = n/M

V = 0.405 mol/(0.724 mol/L) = 0.559 L

4 0
2 years ago
Read 2 more answers
As water evaporates from a solution, minerals become more concentrated and begin to form a rock. what type of rock is it.
Nata [24]
B. chemical sedimentary is your answer.
6 0
2 years ago
Other questions:
  • Briefly describe four ways that a beam can be strengthened?​
    7·1 answer
  • Predict the major and minor products of the following reaction. Name the products using systematic names.CH3CH2CH = CH2+H2O H+--
    14·1 answer
  • The energy released by nuclear fission can be used to ________ and turn a turbine to produce ________ energy.
    8·2 answers
  • Calculate the amount of energy in Joules required to change 10 g of solid mercury at its melting point to mercury vapor at the b
    14·1 answer
  • How do the particles of a gas differ from the particles of a solid?
    13·1 answer
  • For the following reaction, 9.30 grams of glucose (C6H12O6) are allowed to react with 13.8 grams of oxygen gas. glucose (C6H12O6
    15·1 answer
  • An atom that has lost one or more electrons is a(n) _______
    5·2 answers
  • The Lewis dot notation for two atoms is shown.
    5·2 answers
  • What is the concentration of a solution with a volume of .45 L that contains .9 moles of Iron (II) chloride?
    8·1 answer
  • Write the chemical formula for tin(ii)sulfite.. Please show working thank you
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!