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
strojnjashka [21]
2 years ago
14

Express the pressure 545 mm Hg in kilopascals.

Chemistry
1 answer:
Arlecino [84]2 years ago
6 0

545mm Hg in Kilopascals is 72.6607

I hope this helps you. Good luck stay safe, healthy and, happy!<3

You might be interested in
A chemist must dilute 61.9 mL of 548. nM aqueous sodium carbonate (Na2CO3) solution until the concentration falls to 484. nM . H
maw [93]

Answer:

The final volume will be "70.08 mL".

Explanation:

The given values are:

Molar mass,

M1 = 548 nM

or,

     = 5.48\times 10^{-7} \ M

M2 = 484 nM

or,

      = 4.84\times 10^{-7} \ M  

Volume,

V1 = 61.9 mL

V1 = ?

By using the expression, we get

⇒ M1\times V1=M2\times V2

or,

⇒            V2=\frac{M1\times V1}{M2}

By substituting the values, we get

                    =\frac{5.48\times 10^{-7}\times 61.9}{4.84\times 10^{-7}}

                    =\frac{339.212}{4.84}

                    =70.08 \ mL

7 0
2 years ago
25 POINTS! Will mark brainliest if you have a good response!
Zolol [24]
Electrons uniting with electrons of another atom is the cause in this relationship. The effect is a chemical change.
6 0
3 years ago
If a substance cannot be broken down chemically into a simpler substance what is it
Vikentia [17]

Answer: An Element

Explanation:

An element is a substance that cannot be split into smaller substance. It is made up of one kind of atom and can exist either as molecules  (e.g nitogen) or an atom (e.g argon).

6 0
3 years ago
Read 2 more answers
What does the period number indicate on periodic table
anastassius [24]
It’s atomic mass is what the number means.
4 0
3 years ago
Read 2 more answers
write an activity to show the change in state and change in temperature during a chemical reaction(change)
Paha777 [63]
If a piece of charcoal is taken and set on fire it will evolve CO2 and heat. Charcoal is solid but carbon dioxide is gaseous. This is an example of change of state and evolve of heat during chemical reaction.
5 0
3 years ago
Other questions:
  • Mercury(II) oxide (HgO) decomposes to form mercury (Hg) and oxygen (O2). The balanced chemical equation is shown below. 2HgO mc0
    15·2 answers
  • Which chemical equation correctly represents the reaction that takes place when nitrogen gas and hydrogen gas are formed as ammo
    6·1 answer
  • The percent composition of methyl butanoate is 58.8% C, 9.8% H, and 31.4 % O and its molar mass is 102 g/mol. What is its empiri
    10·1 answer
  • The digestion process starts in the _____.<br> esophagus<br> stomach<br> small intestine<br> mouth
    14·2 answers
  • Carbon-14 (14C) dating assumes that the carbon dioxide on the Earth today has the same radioactive content as it did centuries a
    15·1 answer
  • What is true of Clydesdale and thoroughbred horses?
    13·2 answers
  • What is represented in each block of the periodic tables?
    7·1 answer
  • The begining of this chemical equation represents the starting materials for a chemical reaction
    14·1 answer
  • According to the iupac convention, alkyl substituents on a hydrocarbon chain should be listed in which order?
    6·1 answer
  • What is the balanced chemical equation for the reaction of sodium and oxygen?Na + O to NaO2Na + O2 to 2 NaO4Na + O2 to 2Na2ONa +
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!