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
Illusion [34]
3 years ago
15

0.0136 g + 2.70 × 10-4 g - 4.21 × 10-3 g = ?

Chemistry
1 answer:
melisa1 [442]3 years ago
3 0

Answer choice is , 2

You might be interested in
One litre of hydrogen at STP weight 0.09gm of 2 litre of gas at STP weight 2.880gm. Calculate the vapour density and molecular w
expeople1 [14]

Answer:

we know, at STP ( standard temperature and pressure).

we know, volume of 1 mole of gas = 22.4L

weight of 1 Litre of hydrogen gas = 0.09g

so, weight of 22.4 litres of hydrogen gas = 22.4 × 0.09 = 2.016g ≈ 2g = molecular weight of hydrogen gas.

similarly,

weight of 2L of a gas = 2.88gm

so, weight of 22.4 L of the gas = 2.88 × 22.4/2 = 2.88 × 11.2 = 32.256g

hence, molecular weight of the gas = 32.256g

vapor density = molecular weight/2

= 32.256/2 = 16.128g

hence, vapor density of the gas is 16.128g.

Explanation:

4 0
2 years ago
The Michaelis–Menten equation is an expression of the relationship between the initial velocity ????0 of an enzymatic reaction a
hammer [34]
1 doubling s will almost double the rate
8 0
3 years ago
How would a 2+ ion form from an atom?
slavikrds [6]
An atom loses 2 protons
3 0
3 years ago
How would you describe the strength of the bonds that result from resonance in SO3?
Sladkaya [172]

Answer:

All bonds are equivalent in length and strength within the molecule.

Gaseous SO3 is a trigonal planar molecule that exhibit a D3h symmetry group.

Sulfur has sp2 hybridization and it has 6 outer electrons which make the bonds with the oxygen.

Its constituent sulfur atom has an oxidation state of +6 and a formal charge of 0.

The Lewis structure is made up of one S=O double bond and two S–O dative bonds that doesn't not engage the d-orbitals. ( Thus, SO3 molecule has three double bonded oxygen to the central sulfur atom). This explains the strength.

It gaseous form had a zero electrical dipole moment  because of the 120° angle between the S-O bonds.

Explanation:

7 0
3 years ago
I NEED HELP, HELP ME PLZ!!!
Verdich [7]
I belevieve the answer is A
4 0
3 years ago
Read 2 more answers
Other questions:
  • How many milliliters of 1.50 m hcl(aq) are required to react with 5.45 g of an ore containing 32.0% zn(s) by mass?
    6·1 answer
  • What is the correct name for MgF2?
    15·2 answers
  • Question 7.7. All amino acids have a central carbon with four components attached to it. One of these components is called the R
    6·1 answer
  • 2. What are the similarities between law of triads and law of octaves?​
    10·1 answer
  • What three parts make up an atom?
    11·2 answers
  • Iron oxide and hydrogen react to form iron and water in the following chemical equation:
    8·1 answer
  • Which element has similar properties to Berylium? Explain
    7·1 answer
  • Be sure to answer all parts. Sulfonation of benzene has the following mechanism: (1) 2 H2SO4 ⇌ H3O+ + HSO4− + SO3 [fast] (2) SO3
    13·1 answer
  • Use the information to answer the following question.
    10·2 answers
  • M
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!