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
Alexxandr [17]
2 years ago
14

What is 9.871 x 10^-3 in standard form? *

Chemistry
2 answers:
Airida [17]2 years ago
7 0

Answer:

.009871

Explanation:

raketka [301]2 years ago
6 0

Answer:

0.009871

Explanation:

9.871\times 10^{-3} = 0.009871

You might be interested in
Rank these acids according to their expected pKa values.
givi [52]

Answer:

According to their expected pKa values, the order of those acids should be:

1- Cl2CHCOOH is the strongest acid and the lowest pKa.

2- ClCH2COOH is a strong acid, but no more than the first. Medium pKa value.

3- ClCH2CH2COOH is a strong acid, but no more than the two previous acids. High pKa value.

4- CH3CH2COOH  is the weakest acid, so the highest pKa value.

Explanation:

The pKa values are the negative logarithm of dissociation constant. It represents the relative strengths of the acids. Stronger acids show smaller pKa values and weak acids present larger pKa value. The stronger the acid, the weaker it's the conjugate base. The larger the pKa of the conjugate base, the stronger the acid. The strength of an acid is inversely related to the strength of its conjugate.

Conjugate bases are the substance that has one less proton than the parent acid. The conjugate base of the acid presented in the problem are:

ClCH2COOH -> ClCH2COO-  + H+

ClCH2CH2COOH -> ClCH2CH2COO- + H+

CH3CH2COOH -> CH3CH2COO- + H+

Cl2CHCOOH -> Cl2CHCOO - + H+

Cl2CHCOOH. The negative charge presented on its conjugate base is by resonance and inductive effect. This is the strongest acid.

ClCH2COOH. A negative charge is stabilized by resonance and electron-withdrawing but only one atom is present. So this acid is less strong than the first one.

ClCH2CH2COOH. The negative charge is stabilized by resonance and electron-withdrawing atom but the effect is less compared to the two acids showed previously.

CH3CH2COOH. The negative charge is stabilized by resonance and destabilized due to CH3 group. This is the weakest acid among the problem.

Stronger acids have smaller pKa values and weak acids have larger pKa values. Due to the information present in this problem, Cl2CHCOOH is the strongest acid and the lowest pKa. CH3CH2COOH is the weakest acid, so the highest pKa value.

Finally, we can conclude that according to their expected pKa values, the order of those acids should be:

1- Cl2CHCOOH is the strongest acid and the lowest pKa.

2- ClCH2COOH is a strong acid, but no more than the first. Medium pKa value.

3- ClCH2CH2COOH is a strong acid, but no more than the two previous acids. High pKa value.

4- CH3CH2COOH  is the weakest acid, so the highest pKa value.

3 0
2 years ago
A solution that cannot dissolve more and already has a large amount of dissolved is
Nikitich [7]

Answer:

Saturated Solution

Explanation:

Happy to help

Pls mark as Brainliest.

8 0
3 years ago
How many Earths will we need to have enough resources if the whole world lived like Americans?
Oxana [17]

Answer:

2749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`12345678998546897786544785786445082796468578967109878378610978378517629865378632749274826186482737216657574758757863352`1`1234567899854689778654478578644508279646857896710987837861097837851762986537863 earths

Explanation:

because yeah

4 0
3 years ago
Read 2 more answers
Use the periodic table to find the molar mass of
Naddika [18.5K]

I can give you a clue of getting mass. if it is the atomic number is even multiply by 2 but if the atomic number is odd multiply by 2 and add 1

sodium atomic number = 11 so mass = 11*2 +1 = 23

oxygen. atomic number = 8 so mass = 8*2 = 16

carbon atomic number = 6 so mass = 6*2 = 12

3 0
2 years ago
17. Explain why chlorine gas can be prepared by electrolyzing an aqueous solution of NaCl
yulyashka [42]

Answer:

Fluorine gas reacts with water.

8 0
3 years ago
Other questions:
  • Entropy means that _________.A. the quantity of usable energy declines with each transformationB. energy can be neither created
    15·1 answer
  • What type of van der Waals force exists between molecules of oxygen?
    14·1 answer
  • Boyle's Law represents the relationship of volume as pressure changes. The constants of Boyle's Law are:
    9·1 answer
  • Initially, scientists described atoms as the smallest particles of matter. However smaller particles within atoms were
    10·1 answer
  • Help Asap, timed assignment
    14·2 answers
  • This characteristic of a sound wave changes as the volume of the sound wave changes
    12·2 answers
  • Convert 7.50 grams of glucose C6H12O6 to moles
    5·1 answer
  • What are the main components of diesel fuel?
    8·1 answer
  • Brainliest and a free hug :) thank you!!
    11·1 answer
  • - How many moles of S2 are needed to produce 1.50 moles of SO2 gas? S2 + 20, ----> 2802​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!