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Stels [109]
2 years ago
8

Calculate the molecular weights for NH3 and SF6.

Chemistry
1 answer:
nevsk [136]2 years ago
4 0
Hi there,

NH3 has the weight of 17.03 grams, and SF6 has the weight of 146.06 grams 

so in total, there is 163.09 grams

Hope this helps :P


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6) Determine la concentración de una solución que ha sido preparada añadiendo 80cc de agua a 320cc de solución alcohólica al 20%
Xelga [282]

Answer:

16% v/v es la nueva concentración de alcohol en la solución

Explanation:

El porcentaje volumen/volumen (% v/v) es definido como 100 veces la relación entre el volumen de soluto (Alcohol en este caso) y el volumen total de la solución (Agua + Alcohol). Para resolver esta pregunta necesitamos hallar el volumen de alcohol y el de agua:

<em>Volumen alcohol:</em>

320cc * (20cc etanol / 100cc) = 64cc etanol

<em>Volumen agua:</em>

80cc + (320cc-64cc) = 336cc agua

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64cc / (336cc + 64cc) * 100

= 16% v/v es la nueva concentración de alcohol en la solución

3 0
3 years ago
What type of element is Hydrogen? Where do you see hydrogen present?
PSYCHO15rus [73]

/~\ The correct answer is:

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

<em><u>Hydrogen is a chemical and is </u></em><em><u>found in the sun and most of the stars, </u></em><em><u>and the</u></em><em><u> planet Jupiter</u></em><em><u> is composed mostly of hydrogen. On Earth,</u></em><em><u> </u></em><em><u>hydrogen is found in the</u></em><em><u> greatest quantities as water.</u></em>

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8 0
2 years ago
Use the equation:
Serga [27]

Answer:

polymerization reaction

4 0
3 years ago
How to find change in enthalpy
arlik [135]
∆H = m x s x ∆T, where m is the mass of the reactants, s is the specific heat of the product, and ∆T is the change in temperature from the reaction.
5 0
2 years ago
How do the products of chemical reactions compare to their reactants?
LUCKY_DIMON [66]

Answer: The products usually weigh more than the reactants.

Explanation:

8 0
2 years ago
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