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
kenny6666 [7]
3 years ago
10

A gas has a volume of 1.4 liters at STP. What is the new volume when the temperature is changed to 40 K and the pressure is chan

ged to 1.2 atm?
Chemistry
1 answer:
Whitepunk [10]3 years ago
7 0

Answer:

0.17094 liters

Explanation:

-For STP, Pressure=1 atm and Temperature=273K

-We apply the combined gas law which relates temperature, pressure and Volume:

\frac{PV}{T}=k

-We therefore equate the relationship at different temperatures as follows:

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}\\\\\frac{1\times 1.4\ }{273}=\frac{1.2\times V_2}{40}\\\\V_2=\frac{1\times 1.4\ }{273}\times \frac{40}{1.2}\\\\=0.17094\ L

Hence, the new volume is 0.17094 liters

You might be interested in
Iron 3 oxide and carbon react to form iron and carbon dioxide. Balance the equation.
Oksi-84 [34.3K]

Answer:

2 Fe(iii)2O3 + 3 C ==> 2 Fe  + 3 CO2

Explanation:

First of all, you have to translate the words into an equation.

Fe(iii)2O3 + C ==> Fe  + CO2

The easiest way to tackle this is to start with the Oxygens and balance them. They must balance by going to the greatest common factor which is 6. So you multiply the molecule by whatever it takes to get the Oxygens to 6

2 Fe(iii)2O3 + C   ==>     Fe  + 3 CO2

Now work on the irons. There 2 on the left and just 1 on the right. So you need to multiply the iron by 2.

2 Fe(iii)2O3 + C ==> 2 Fe  + 3 CO2

Finally it is the turn of the carbons. There are 3 on the right, so you must make the carbon on the left = 3

2 Fe(iii)2O3 + 3 C ==> 2 Fe  + 3 CO2

And you are done.

5 0
3 years ago
Which surface ocean currents has the warmest water
NNADVOKAT [17]
<span>the Brazil Current has the warmest water</span>
4 0
2 years ago
Read 2 more answers
Can someone plz help me? :(
Sveta_85 [38]

Answer:

it's C

Explanation:

because it exhaled the carbon dioxide

8 0
2 years ago
What is the complete balanced equation for the reaction that occurs when lithium carbonate (Li2CO3) is heated?
Fed [463]
When heating lithium carbonate (Li2CO3), it will dissociate to Li2O and Co2. So the balanced chemical equation of this reaction is Li2CO3 = Li2O + CO2. 
7 0
3 years ago
Ascorbic acid, or vitamin C (C6H8O6, molar mass = 176 g/mol), is a naturally occurring organic compound with antioxidant propert
nydimaria [60]

Answer : 50.69 mg of ascorbic acid does not meet the daily requirement.

Solution : Given,

Molar mass of Ascorbic acid = 176 g/mole

Moles of Ascorbic acid = 2.88\times 10^{-4}moles

Formula used :

Moles=\frac{Mass}{\text{ Molar mass}}

or, \text{ Mass of ascorbic acid}=\text{ Moles of ascorbic acid}\times \text{ Molar mass of ascorbic acid}

Now put all the given values in this formula, we get the mass of ascorbic acid.

\text{ Mass of ascorbic acid}=(2.88\times 10^{-4}moles)\times (176g/mole)=0.050688g=50.69mg

Conversion : (1g=1000mg)

As per question, a healthy adult’s daily requirement of vitamin C is 70-90 mg. But calculate mass of vitamin C is 50.69 mg. So, 50.69 mg of ascorbic acid does not meet the daily requirement.

5 0
3 years ago
Other questions:
  • The stability of an isotope is based on its
    14·1 answer
  • What is the chemical formula for hydrogen peroxide?
    12·1 answer
  • A student places a small amount of water in a glass dish and then carefully places a small paperclip on the surface of the water
    8·2 answers
  • 10. Which of the following best describes the reaction 2VO3– (aq) + Zn (s) + 8H+ (aq) → 2VO2 (aq) + Zn2+ (aq) + 4H2O (l)? ______
    7·1 answer
  • 0.0200 M Fe3+ is initially mixed with 1.00 M oxalate ion, C2O42-, and they react according to the equation: Fe3+(aq) + 3 C2O42-(
    5·1 answer
  • If you somehow added a proton to a calcium atom, it would be
    12·1 answer
  • A certain first-order reaction has a rate constant of 2.15×10−2 s−1 at 20 ∘C. What is the value of k at 55 ∘C if Ea = 72.0 kJ/mo
    10·1 answer
  • Please please !!! help me I’ve been doing this for 2 hours
    13·1 answer
  • Please help thank you
    13·1 answer
  • Write the name for the compound whose formula is shown here<br><br> Ca3(BO3) 2
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!