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
vazorg [7]
3 years ago
5

Only 235u can be used as fuel in a nuclear reactor, so uranium for use in the nuclear industry must be enriched in this isotope.

if a sample of enriched uranium has an average atomic mass of 237.482 amu, what percentage of 235u is present?
Chemistry
1 answer:
Yuki888 [10]3 years ago
3 0

There are two isotopes of uranium abundant in nature

U235 and U238

As given that the sample has average molar mass of 237.482 amu

Let the amount of U235 in 100g sample = x

the amount of U238 in 100 g sample = 100-x

the average molar mass = [235(x) + 238 (100-x)] / 100

237.482  =  [235(x) + 238 (100-x)] / 100

237.482  X 100 =  [235(x) + 238 (100-x)]

23748.2 = 235 x + 23800 - 238x

51.8 = 3x

x = 17.27 g

So percentage of U-235 = 17.27 %


You might be interested in
The following reaction occurs in aqueous solution: NH4 + (aq) + NO2 - → N2 (g) + 2H2O (l) The data below is obtained at 25°C.
GREYUIT [131]

Answer: The order with respect to NH_4^+ is 1.

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

NH_4^++NO_2^-\rightarrow N_2+2H_2O

Rate=k[NH_4^+]^x[NO_2^-]^y

k= rate constant

x = order with respect to NH_4^+

y = order with respect to ANO_2^-

n = x+y = Total order

From trial 1: 3.2\times 10^{-3}=k[0.0100]^x[0.200]^y    (1)

From trial 2: 6.4\times 10^{-3}=k[0.0200]^x[0.200]^y    (2)

Dividing 2 by 1 :\frac{6.4\times 10^{-3}}{3.2\times 10^{-3}}=\frac{k[0.0100]^x[0.2000]^y}{k[0.0200]^x[0.200]^y}

2=2^x,2^1=2^x therefore x=  1

Thus order with respect to NH_4^+ is 1.

8 0
3 years ago
What is the force needed to accelerate a sled with a mass of 2 kg at a rate of 3.0/s²
frutty [35]

Answer:

<h3>The answer is option A</h3>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

<h3>Force = mass × acceleration</h3>

From the question

mass = 2 kg

acceleration = 3 m/s²

We have

Force = 2 × 3

We have the final answer as

<h3>6.0 N</h3>

Hope this helps you

7 0
4 years ago
What statement best describes the compresibility of a gas?​
Misha Larkins [42]

Answer: A gas molecules have high kinetic energy due to which they have move rapidly from one place to another

Explanation:

6 0
3 years ago
6. Which of the following pH values would have the highest concentration of hydroxide ions? *
jeyben [28]

pH. 10 because it is strong base

4 0
3 years ago
How many moles of nitrogen are formed when 58.6 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3
geniusboy [140]
Hope this helps you!

8 0
3 years ago
Read 2 more answers
Other questions:
  • Label 0.15 m cacl2 as isotonic, hypotonic, or hypertonic in comparison to 0.9% nacl (0.15 m nacl).
    5·1 answer
  • The mass of 0.357 mol of gold is?
    8·1 answer
  • Convert 256.3 g sodium carbonate to formula units
    14·1 answer
  • Suppose you have a solid that looks like gold but you believe it to be fool’s gold. The mass of the solid is 23.5 grams. When th
    14·1 answer
  • What are common chemicals used for lemons include fertilizer pesticide fungicide and herbicide chemicals that are typically util
    13·1 answer
  • Megan prepares a pitcher of lemonade by adding a quarter cup of granular sugar to the mixture. Which action should she take so t
    12·2 answers
  • A workman uses a moveable pulley to lift a heavy load of bricks. What is the input force, if the output force is 150 N?
    9·1 answer
  • Why is the use of high-frequency radio waves a beneficial technological advancement
    12·1 answer
  • What minimum frequency of light is required to ionize boron?
    10·1 answer
  • Covalent bonding involves the sharing of electrons to create a full valence shell, and
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!