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
tiny-mole [99]
3 years ago
10

What is the molarity of a solution in which 0.257 moles of HNO2 is dissolved in 490ml of water?

Chemistry
1 answer:
dimaraw [331]3 years ago
3 0
2.00 = 550xl in cash
You might be interested in
If an element has an atomic number of 11 and a mass number of 23, how many protons, neutrons, and electrons does it have
Lostsunrise [7]
Protons = atomic number = 11
electrons = proton number = 11
neutrons = mass number - atomic number = 23-11 = 12
5 0
4 years ago
Consider the reaction. mc015-1.jpg How many grams of N2 are required to produce 100.0 L of NH3 at STP?
Nadusha1986 [10]
The  grams  of N2  that  are   required   to  produce 100.0 l  of  NH3   at  STP

At  stp 1moles = 22.4  l. what  about  100.0 L of NH3

= 100 / 22.4 lx1  moles = 4.46  moles  of NH3

write the reacting  equation

N2+3H2 =2NH3
by use of mole  ratio  between  N2  to NH3  which is  1:2 the moles of N2 =4.46/2 =2.23  moles of N2

mass =  moles  x  molar  mass

=  2.23moles  x 28  g/mol =  62.4 grams
3 0
3 years ago
Isotopes are atoms with the SAME number of protons, but DIFFERENT numbers of neutrons. Question 8 options: True False
maxonik [38]

Answer: The correct answer would be : True

I hope that this helps you !

5 0
3 years ago
How many valence electrons configuration of oxygen?
Ganezh [65]
Oxygen had 6 valence electrons
3 0
3 years ago
Is steel a mixture or pure substance
Inessa [10]
Mixture......................
6 0
3 years ago
Read 2 more answers
Other questions:
  • Based on the results of this lab, write a short paragraph that summarizes how to distinguish physical changes from chemical chan
    9·2 answers
  • Combustion of fossil fuels contaminated with sulfur leads to what phenomena?
    15·1 answer
  • Two fundamental concepts about the ion channels of a resting neuron are that the channels _____.
    14·1 answer
  • In which main energy level does the 'd' sublevel first appear? K (first main energy level) L (second main energy level) M (third
    7·1 answer
  • What physical changes occured while you ate breaskfast?
    15·2 answers
  • ANSWER FAST PLZ!!!!!!!!
    11·1 answer
  • Use the periodic table to determine the electron configuration for dysprosium (Dy) and americium (Am) in noble-gas notation
    13·2 answers
  • Need help with matching the pictures with biomes
    10·2 answers
  • What new substance was made after they were mixed
    14·1 answer
  • Um Is it in third period and has three electrons in its highest P orbitals
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!