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
tankabanditka [31]
2 years ago
8

Perform the following calculations and record your answers with the appropriate significant figures.

Chemistry
1 answer:
krok68 [10]2 years ago
6 0

A=46.9

B=74.5

C=2.70

D=1.1

E=452.3

F=1.7

G=0.00016

You might be interested in
Consider the following reaction where Kc = 1.80×10-2 at 698 K:2 HI (g) H2 (g) + I2 (g)A reaction mixture was found to contain 0.
Iteru [2.4K]

Answer:

Answer for the given statements: (1) T , (2) F , (3) T , (4) F , (5) F

Explanation:

At the given interval, concentration of HI = \frac{0.304}{1}M=0.304M

Concentration of H_{2} = \frac{5.07\times 10^{-2}}{1}M=5.07\times 10^{-2}M

Concentration of I_{2} = \frac{4.57\times 10^{-2}}{1}M=4.57\times 10^{-2}M

Reaction quotient,Q_{c} , for this reaction = \frac{[H_{2}][I_{2}]}{[HI]^{2}}

species inside third bracket represents concentrations at the given interval.

So, Q_{c}=\frac{(5.07\times 10^{-2})\times (4.57\times 10^{-2})}{(0.304)^{2}}=2.51\times 10^{-2}

So, the reaction is not at equilibrium.

As Q_{c}> K_{c} therefore reaction must run in reverse direction to reduce Q_{c} and make it equal to K_{c}. That means HI(g) must be produced and H_{2} must be consumed.

3 0
2 years ago
1) You are asked to make 10 miles of iron (Fe) from iron oxide (Fe2O3) and excess carbon monoxide (CO). Fe2O3(s) + 3CO(g)—> 2
Inessa05 [86]

For both of them, used the balanced equation and it’s mole ratio to convert whatever you need to into moles. See the attacked work.

1) D 5 mols

2) A 0.55 mols

8 0
3 years ago
Use the word bank to complete the charts about the metrics system measurement
Aloiza [94]

Answer:

Length

- centimetre

- millimetre

- kilometre

- meter

Mass

- gram

- kilogram

Capacity

- liter

- millilitre

I don't know why mass is there but hope this helps! :)

5 0
3 years ago
3. compounds in which elements are held together by covalent bonds...keeps their own properties
stich3 [128]
The anserr is c that what i think
3 0
3 years ago
In what direction does energy move​
Arlecino [84]

In every direction guyz but conventionally it moves from higher potential to lower potential

7 0
2 years ago
Read 2 more answers
Other questions:
  • A compound contains 64.27% carbon, 7.19% hydrogen, and 28.54% oxygen. the molar mass is 168.19 g/mol. what is the molecular form
    8·1 answer
  • An element has atomic number 10 and an atomic mass of 20. How many neutrons are in the atom of this element? A. 10 B. 20 C. 30 D
    10·1 answer
  • 5 grams of NaHCO3 was added to 50 cm3 of 1.5 mol dm-3 hydrochloric acid, causing the temperature to decrease by 6.8 K. What is t
    10·2 answers
  • When K2SO4 is separated into its ions, how is it written?
    15·2 answers
  • Consider the combustion of octane (C8H18), a primary component of gasoline.
    8·1 answer
  • Consider a U-tube whose arms are open to the atmosphere. Now water is poured into the U-tube from one arm, and light oil (???? =
    15·1 answer
  • Which of the following is not apart of daltons atomic theory
    12·2 answers
  • The target compound that you should synthesize is 3-chloro-1-butene. Again, this is an electrophilic alkene addition reaction.Ex
    15·1 answer
  • What volume will a sample of F2 gas occupy in a syringe at 5.5 atm if the f2 has volume of 30 ml at 1.2 atm?
    11·1 answer
  • KF + 02 <br><br> Balance the equation
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!