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
nadezda [96]
4 years ago
5

How many milliseconds (ms) are there in 3.5 seconds (2)

Chemistry
1 answer:
ludmilkaskok [199]4 years ago
3 0
There are 3500 ms in 3.5 s
You might be interested in
How many molecules of XeF6 are formed from 12.9 L of F2 (at 298 K and 2.6 atm) according to 11) the following reaction? Assume t
ddd [48]

Answer:

#Molecules XeF₆ = 2.75 x 10²³ molecules XeF₆.

Explanation:

Given … Excess Xe + 12.9L F₂ @298K & 2.6Atm => ? molecules XeF₆

1. Convert 12.9L 298K & 2.6Atm to STP conditions so 22.4L/mole can be used to determine moles of F₂ used.

=> V(F₂ @ STP) = 12.6L(273K/298K)(2.6Atm/1.0Atm) = 30.7L F₂ @ STP

2. Calculate moles of F₂ used

=> moles F₂ = 30.7L/22.4L/mole = 1.372 mole F₂ used

3. Calculate moles of XeF₆ produced from reaction ratios …

Xe + 3F₂ => XeF₆ => moles of XeF₆ = ⅓(moles F₂) = ⅓(1.372) moles XeF₆ = 0.4572 mole XeF₆

4. Calculate number molecules XeF₆ by multiplying by Avogadro’s Number  (6.02 x 10²³ molecules/mole)

=> #Molecules XeF₆ = 0.4572mole(6.02 x 10²³ molecules/mole)

                                  = 2.75 x 10²³ molecules XeF₆.

8 0
3 years ago
Determine the amount of energy (heat) in joules required to raise the temperature of 5 kg of iron from 50°C to 200°C.
larisa [96]

333,000 Joules is the amount of energy (heat) in joules required to raise the temperature of 5 kg of iron from 50°C to 200°C.

Explanation:

Data given:

mass of iron 5 Kg or 5000

initial temperature = 50 degree centigrade

final temperature = 200 degrees centigrade

change in temperature (Δ T= 200 -50 degrees centigrade)

                                         = 150 °C

cp  (specific heat capacity of iron) = 0.444j/gram C

q (heat supplied) = ?

applying the formula,

q=mcΔT

putting the values in the equation:

q = 5000 X 0.444 X150

 q  = 333,000 Joules of energy.

The heat required 333,000 Joules of energy is required.

4 0
4 years ago
Which statement explains the kinetic theory of heat?
Naddik [55]

The theory that states that heat is the result of the movement of particles in a system.

7 0
3 years ago
Consider the reaction: 2NO(g) O2(g) --> 2NO2(g) Suppose that at a particular moment during the reaction nitric oxide (NO) is
poizon [28]

Answer:

a. 0.0022 M/s

b. 0.0011 M/s

Explanation:

Let's consider the following reaction.

2 NO(g) + O₂(g) → 2 NO₂(g)

The rate of disappearance of NO is 0.0022 mol NO. L⁻¹.s⁻¹

<em>a. At what rate is NO₂ being formed?</em>

The molar ratio of NO to NO₂ is 2:2. The rate of formation of NO₂ is:

\frac{0.0022molNO}{L.s} .\frac{2molNO_{2}}{2molNO} =\frac{0.0022molNO_{2}}{L.s}

<em>b. At what rate is molecular oxygen reacting?</em>

The molar ratio of NO to O₂ is 2:1. The rate of disappearance of O₂ is:

\frac{0.0022molNO}{L.s} .\frac{1molO_{2}}{2molNO} =\frac{0.0011molO_{2}}{L.s}

8 0
3 years ago
Read 2 more answers
Can someone explain to me what the element Americium is?
Andreyy89
It's a radioactive chemical element. It's symbol is AM and the atomic number is 95. It is a transuranic member of the actinide series, in the periodic table located under the lanthanide element europium, and thus by analogy was named after the Americas.
7 0
4 years ago
Other questions:
  • A change in which factor will affect the rate of reaction only when gases are involved?
    13·2 answers
  • What is the molarity of a 50.0 mL solution that contains 0.0350 mol of sodium sulfate, Na2SO4?
    8·1 answer
  • How many excess electrons must you add to an object to give it a charge of -6.50 μc?
    10·1 answer
  • Sex cells from female reproductive organ?
    7·2 answers
  • How are isotopes defined?
    10·2 answers
  • when an atom is decaying, what number of half lives or percent does it need to decay to to become it's daughter element?
    13·1 answer
  • How many grams of Ba(NO3)2 contain 5.4 x 10^24
    6·2 answers
  • What is the name for Mo(PO3)2
    7·1 answer
  • What are the half-reactions for a galvanic cell with aluminum and gold electrodes?
    14·1 answer
  • How many atoms are in a 58.2 L sample of Agent Orange gas?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!