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
valentinak56 [21]
4 years ago
13

. An open manometer is filled with mercury. The mercury level is 12mm higher on the side open to the atmosphere. What is the tot

al pressure of the gas, in kPa, if the atmospheric pressure is 100.8 kPa?
Chemistry
1 answer:
Mariulka [41]4 years ago
8 0

Answer:

102kPa

Explanation:

760mmHg = 101.325 kPa

12mmHg = x

Upon converting from mmHg to kPa we have;

x = ( 12 mm Hg x  101.325 kPa)  / 760mmHg

x = 1.599868421 kPa

Total pressure = 100.8 kPa + 1.599868421 kPa

Total pressure = 102kPa

You might be interested in
SO2+O2 SO3 how many moles of O2 needed to combust 100.0g of sulfur dioxide
Oksanka [162]

2SO2 + O2 ------> 2SO3


1) M(SO2)= 32.0 + 2*16.0 = 64 g/mol


2) 100.0 g SO2 * 1 mol SO2/64 g SO2 = 1.5625 mol SO2


3) 2SO2 + O2 ------> 2SO3

2 mol 1 mol

1.5625 mol x mol


x= 1.5625/2=0.78125 ≈ 0.7813 mol O2


Answer: 0.7813 mol O2.

6 0
3 years ago
10.0 g Cu, C Cu = 0.385 J/g°C 10.0 g Al, C Al = 0.903 J/g°C 10.0 g ethanol, Methanol = 2.42 J/g°C 10.0 g H2O, CH2O = 4.18 J/g°C
Mazyrski [523]

Answer:

Lead shows the greatest temperature change upon absorbing 100.0 J of heat.

Explanation:

Q=mc\Delte T

Q = Energy gained or lost by the substance

m = mass of the substance

c = specific heat of the substance

ΔT = change in temperature

1) 10.0 g of copper

Q = 100.0 J (positive means that heat is gained)

m = 10.0 g

Specific heat of the copper = c =  0.385 J/g°C

\Delta T=\frac{Q}{mc}

=\frac{100.0 J}{10 g\times 0.385J/g^oC}=25.97^oC

2) 10.0 g of aluminium

Q = 100.0 J (positive means that heat is gained)

m = 10.0 g

Specific heat of the aluminium= c =  0.903 J/g°C

\Delta T=\frac{Q}{mc}

=\frac{100.0 J}{10 g\times 0.903 J/g^oC}=11.07^oC

3) 10.0 g of ethanol

Q = 100.0 J (positive means that heat is gained)

m = 10.0 g

Specific heat of the ethanol= c =  2.42 J/g°C

\Delta T=\frac{Q}{mc}

=\frac{100.0 J}{10 g\times 2.42 J/g^oC}=4.13 ^oC

4) 10.0 g of water

Q = 100.0 J (positive means that heat is gained)

m = 10.0 g

Specific heat of the water = c =  4.18J/g°C

\Delta T=\frac{Q}{mc}

=\frac{100.0 J}{10 g\times 4.18 J/g^oC}=2.39 ^oC

5) 10.0 g of lead

Q = 100.0 J (positive means that heat is gained)

m = 10.0 g

Specific heat of the lead= c =  0.128 J/g°C

\Delta T=\frac{Q}{mc}

=\frac{100.0 J}{10 g\times 0.128 J/g^oC}=78.125^oC

Lead shows the greatest temperature change upon absorbing 100.0 J of heat.

3 0
4 years ago
How do we know the clams and the rock fossils did not live at the same time
Sever21 [200]
Because they didn’t go extinct at the same time
8 0
3 years ago
Light is not considered as a matter, why?
Zolol [24]
Matter<span> takes up space. You can put it in a container. While gases, liquids, and solids take up space, </span>light<span> and </span>heat<span> do </span>not<span>. Usually </span>matter<span> and energy are found together, so it can be tricky to distinguish between them. Hope this helps!!</span>
6 0
3 years ago
Read 2 more answers
As distance between two objects increases, gravitational force:
just olya [345]

B.) Gravitational force decreases.

You were right !!

3 0
4 years ago
Read 2 more answers
Other questions:
  • Determine the temperature of 2.49 moles of gas in a 1.0-L vessel at 143
    14·1 answer
  • Wich formula equation represents the burning of a sulfur to produce sulfur dioxide?
    10·1 answer
  • 1
    5·1 answer
  • Distinguish betwn.<br> Metals s non-metais
    6·2 answers
  • Draw the Lewis structure for the conjugate acid from the reaction of acetic acid with a generic acid (HA). Draw the molecule by
    9·1 answer
  • The balanced equation for the reaction between aqueous ammonium sulfate and aqueous barium acetate is:________.
    10·1 answer
  • What is the pOH of a solution with an OH- ion concentration of 8.4E-7?
    13·1 answer
  • How many moles of NaHCO3 are there in a 3g tablet of Alka-Selzer?
    13·1 answer
  • Write the Ka expression for an aqueous solution of hypochlorous acid: (Note that either the numerator or denominator may contain
    10·1 answer
  • 9. If 1,785 cal of heat is added to a 343 g sample of water (specific heat = 4.18J/g °C) at 1202,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!