3 years ago

An element is a mixture of two isotopes.one isotope has an atomic mass of 34.969 amu and an abundance of 64.88

1 answer:

5 0

An element is a mixture of two isotopes. One isotope has an atomic mass of 34.969 amu and an abundance of 64.88%. The other isotope has an atomic mass 36.966 amu.

You might be interested in

Dry ice is solid carbon dioxide. Instead of melting, solid carbon dioxide sublimes according to the following equation: CO2(s)→C

GREYUIT [131]

Answer:

$m=8.79kg$

Explanation:

First of all we need to calculate the heat that the water in the cooler is able to release:

$Q=\rho * V*Cp*\Delta T$

Where:

Cp is the mass heat capacity of water
V is the volume
$\rho$ is the density

$Q=1 g/cm^3 *15000 cm^3*4.184 \frac{J}{g*^{\circ}C}*(10-90)^{\circ}C$

$Q=-5020800 J=-5020.8 kJ$

To calculate the mass of CO2 that sublimes:

$-Q=\Delta H_{sub}*m$

Knowing that the enthalpy of sublimation for the CO2 is: $\Delta H_{sub}=571 kJ/kg$

$5020.8 kJ=571 kJ/kg*m$

$m=\frac{5020.8 kJ}{571 kJ/kg}=8.79kg$

6 0

3 years ago

Hurry!!

pishuonlain [190]

Answer:

condensation is the answer

6 0

2 years ago

Read 2 more answers

2,3-Dimethylbutane reacts with bromine in the presence of light to give a monobrominated product. Further reaction gives a good

irga5000 [103]

Answer:

Explanation:

find the solution below

3 0

3 years ago

UGRENT! Please help showing all work

Bess [88]

Answer:

wait I AM TRYING..................

this is limiting reactant

6 0

3 years ago

im found only in plant cells im as green as can be i make food for the plant using the suns energy what am i?

Cloud [144]

im found only in plant cells im as green as can be i make food for the plant using the suns energy what am i?

ANS:-Chloroplast

7 0

3 years ago

Read 2 more answers