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3 years ago

Which would usually influence a reaction rate more? OH os O H&S O Neither H nors

Chemistry

1 answer:

bagirrra123 [75]3 years ago

8 0

Answer:

As the average kinetic energy increases, the particles move faster and collide more frequently per unit time and possess greater energy when they collide. Both of these factors increase the reaction rate. Hence the reaction rate of virtually all reactions increases with increasing temperature

HOPE THIS HELPED!!!!!!!!!!!!!! XDDDDD

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What Size container do you need to hold 0.0459 mol of N2 gas at stp

Allushta [10]

Hello!

You need to calculate the volume of the container. To calculate the volume of this amount of N₂ gas we need to make the assumption that N₂ behaves like an ideal gas.

1 mole of an ideal gas under Standard Temperature and Pressure occupies 22,4 L so the calculations are as follows:

$0,0459 mol N_2* \frac{22,4 L}{1 mol N_2}= 1,028 L$

So, the volume of the container should be 1,028 L or more.

Have a nice day!

4 0

3 years ago

Which example is a weak base? <br> ethyl alcohol, ammonia, potassium hydroxide or vinegar?

BlackZzzverrR [31]

Answer:

potassium

Explanation:

b/c electronegativitu

7 0

3 years ago

Two billiard balls having masses of 0.2 kg and 0.15kg approach each other. The first ball having a velocity of 2m/s hit the seco

Gekata [30.6K]

Answer: The velocity of the first ball is 0.875 m/s if the second ball travels at 1.5 m/s after collision.

Explanation:

Given: $m_{1}$ = 0.2 kg, $m_{2}$ = 0.15 kg

$v_{1}$ = 2 m/s, $v_{2}$ = 0 m/s, $v'_{1}$ = ?, $v'_{2}$ = 1.5 m/s

Formula used is as follows.

$m_{1}v_{1} + m_{2}v_{2} = m_{1}v'_{1} + m_{2}v'_{2}$

where,

v = velocity before collision

v' = velocity after collision

Substitute the values into above formula as follows.

$m_{1}v_{1} + m_{2}v_{2} = m_{1}v'_{1} + m_{2}v'_{2}\\0.2 kg \times 2 m/s + 0.15 kg \times 0 m/s = 0.2 kg \times v'_{1} + 0.15 kg \times 1.5 m/s\\0.4 kg m/s + 0 = 0.2v'_{1} + 0.225 kg m/s\\0.2v'_{1} kg = 0.175 kg m/s\\v'_{1} = \frac{0.175 kg m/s}{0.2 kg}\\= 0.875 m/s$

Thus, we can conclude that the velocity of the first ball is 0.875 m/s if the second ball travels at 1.5 m/s after collision.

4 0

4 years ago

The material that passes on _________ information is DNA.

luda_lava [24]

Answer:

Genetics

Explanation:

I did this question five minutes ago on Edge.

3 0

3 years ago

Imagine you were doing a calorimetry experiment to measure the molar enthalpy change for dissolving ammonium chloride (NH4Cl(s))

Bess [88]

Answer:

Volume of water

Initial temperature of the solution

Final temperature of the solution

Mass of NH₄Cl

Explanation:

There are two heat transfers involved in this experiment.

Heat of solution of NH₄Cl + heat lost by water = 0

q₁ + q₂ = 0

nΔH + mCΔT = 0

nΔH = -mCΔT

ΔH = -mCΔT/n

So, you must measure

the volume of water (you will probably use its density to calculate its mass)
the initial and final temperatures of the solution (to calculate ΔT)
the mass of NH₄Cl (to calculate the number of moles)

You will probably assume that the specific heat capacity of the solution is the same as that of water, so you won't be measuring it.

4 0

4 years ago