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
schepotkina [342]
3 years ago
15

A bottle of antiseptic hydrogen peroxide (H2O2) is labeled 3.0% (v/v). How many mL H2O2 are in a 400.0 mL bottle of this solutio

n?
Use this formula: Percent by volume: volume of solute/volume of solution×100%
Chemistry
1 answer:
PolarNik [594]3 years ago
6 0

Answer:

= 12 mL H202

Explanation:

Given that, the concentration of H2O2 is given antiseptic = 3.0 % v/v

It implies that, 3ml  H2O2 is present in 100 ml of solution.

Therefore, to calculate the amount of H202 in 400.0 mL bottle of solution;

we have;

 (3.0 mL/ 100 mL) × 400 mL

= 12 mL H202

You might be interested in
Round 0.002346 to 3 significant figures.
Kruka [31]

Answer:

0.00235

Explanation:

  • Zeros that come before any non-zero digits are never significant.

  • Zeros that are in between any non-zero digits are always significant.

  • Zeros that come after any non-zero digit are ONLY significant if a decimal point in present somewhere in the number. (In this case there is a decimal point, but there aren't any zeros at the end of this number.)

The zeros at the beginning aren't significant, so include those zeros in your answer. The 6 at the end in greater than 5 so that rounds the 4 to up one number (In this case, it's 5).

This gives you 0.00235

6 0
3 years ago
The uses of isolates of crude oil
nataly862011 [7]

Petroleum, also called crude oil, is a fossil fuel. Like coal and natural gas, petroleum was formed from the remains of ancient marine organisms.

<h3>What are the uses of crude oil?</h3>

We use petroleum products to run our vehicle like car, bikes, boats, aeroplanes and many more other things. In the industrial sector, the petrochemical industry uses petroleum as a raw material (a feedstock) to make products such as plastics, polyurethane, solvents, and hundreds of other intermediate and end-user goods.

1. It is used for Food Production

2. It is used for Transportation

3. It is used in Clothing Materials

4. It is used as Products in our Home

5. From the Crude Oil we can extract the oil, petrol, jet fuel and many other things

So we can conclude that: Petroleum, also called crude oil, is a fossil fuel. Like coal and natural gas, petroleum was formed from the remains of ancient marine organisms.

Learn more about Crude Oil here:brainly.com/question/14260176

#SPJ1

6 0
2 years ago
Which of the following compounds most likely has the least bond energy?
Evgesh-ka [11]

Answer:

I2; I–I bond length = 266 pm

Explanation:

Bond length is inversely related to bond strength. The longer the bond length, the weaker the bond. The shorter the bond length the stronger the bond. A large bond distance implies that there is poor interaction between the atoms involved in the bond. A long bond distance or bond length may even indicate the absence of covalent interaction between the atoms involved.

4 0
3 years ago
What’s love?why is it important ?
Leno4ka [110]

Answer:

It's the Key to All Relationships. At the basis of all other emotions within a relationship is the sensation of love. When you feel loved, you feel less pressure, less alone, less anxiety, more secure, more confident, and more important.

Explanation:

6 0
3 years ago
Write the molecular formula of poly(glycine)
Dvinal [7]

Answer:

C2H5NO2

Explanation:

Glycine | C2H5NO2 - PubChem.

weight of glycine= 75.07 g/mol

5 0
3 years ago
Other questions:
  • What is the mass of 7.91 cm to the power of three piece of lead having a density of 11.34 g/cm to the power of three?
    10·1 answer
  • How many molecules of co2, h2o, c2h5oh, and o2 will be present if the reaction goes to completion?
    7·2 answers
  • Mary Sue is making caramel ice cream. In the first part of the process, she combines a cup of sugar and a cup of water in a sauc
    5·2 answers
  • ANSWER ASAP <br> I'm vv confused on this question, is anyone willing to answer??
    10·1 answer
  • 7. What is the maximum number of d orbitals in a principal energy level?<br> 2<br> 5<br> 3<br> 1
    14·1 answer
  • The reaction 2A → A2​​​​​ was experimentally determined to be second order with a rate constant, k, equal to 0.0265 M–1min–1. If
    9·1 answer
  • The products of the reaction between potassium hydroxide, KOH, and nitric acid, HNO3, are potassium nitrate and ________________
    11·2 answers
  • 6. What happens to the energy of the transition state when a catalyst is used?
    13·2 answers
  • I'll mark you the brainlest just answer the question
    9·1 answer
  • Which sublevel would have electrons with the highest energy? A) 5s B) 4s C) 4d D) 4p
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!