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777dan777 [17]
3 years ago
10

Calculate the atomic mass of nitrogen if the two common isotopes of nitrogen have masses

Chemistry
1 answer:
Goshia [24]3 years ago
6 0
(99.63/100 x 14.003) + (0.37/100 x 15)

13.9511889 + 0.0555 = 14.0066889amu

13.95 + 0.0555 = 14.0055 (same thing just rounded numbers)

(You can round that to 14amu)

Answer is 14 amu
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The energy from the sun, in the form of light, hits the earth through the process of radiation. when the light is absorbed by ea
harina [27]
Answer:
C. Conduction
4 0
4 years ago
Read 2 more answers
5/3 * 2/3 what's the answer
Contact [7]
5 x 2 = 10

3 x 3 = 9

10/9, or 1 1/9 is your answer

hope this helps
6 0
3 years ago
El superóxido de potasio, KO2, se emplea en máscaras de respiración para generar
Orlov [11]

Answer:

Reactivo límite: Superóxido de potasio.

Moles de oxígeno producidas: n_{O_2}=0.11molO_2

Explanation:

Hola,

En este caso, considerando la reacción química llevada a cabo:

4KO_2(s) + 2H_2O(l) \rightarrow 4KOH(s) + 3O_2(g)

Es posible identificar el reactivo límite calculando las moles de superóxido de potasio que serían consumidas por 0.10 mol de agua por medio de la relación molar 4 a 2 que hay entre ellos:

n_{KO_2}^{consumido\ por\ agua}=0.10molH_2O*\frac{4molKO_2}{2molH_2O} =0.2molKO_2

Así, dado que solo hay 0.15 mol the superóxido de potasio, podemos decir que este es el reactivo límite. Luego, calculamos las moles de oxígeno producidas, considerando la relación molar 4 a 3 que hay entre el superóxido y el oxígeno:

n_{O_2}=0.15molKO_2*\frac{3molO_2}{4molKO_2} \\\\n_{O_2}=0.11molO_2

Best regards.

4 0
3 years ago
What is 105.6 mmhg= ? Torr
Nata [24]
Mm of Hg is the same as Torres, therefore, it should be 105.6 Torr
7 0
3 years ago
If you have 23.8g of CaCl2, how many formula units is it
m_a_m_a [10]

Answer:

1.3×10²³ formula unit

Explanation:

Given data:

Mass of CaCl₂ = 23.8 g

Number of formula unit = ?

Solution:

Number of moles = mass/molar mass

Number of moles = 23.8 g/110.98 g/mol

Number of moles = 0.21 mol

1 mole of any substance contain 6.022×10²³ formula unit

0.21 mol × 6.022×10²³ formula unit / 1mol

1.3×10²³ formula unit

5 0
3 years ago
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