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olga2289 [7]
3 years ago
9

Sentences with word carcasses

Chemistry
2 answers:
xenn [34]3 years ago
8 0
The deer carcasses lay on the side of the road on the highway.
valkas [14]3 years ago
7 0
When you work on a farm you come to see a lot of carcasses.
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Según la Organización Mundial de la Salud, el nitrato de plata ( densidad = 4.35 g/cc ) es una sustancia con propiedades cáustic
OlgaM077 [116]

Answer:

737.52 mL de agua

Explanation:

En este caso solo debes usar la expresión de molaridad de una solución la cual es:

M = moles / V

Donde:

V: Volumen de solución.

Como queremos saber la cantidad de agua, queremos saber en otras palabras cual es la cantidad de solvente que se utilizó para preparar los 800 mL de disolución.

Una disolución se prepara con un soluto y solvente. El soluto lo tenemos, que es el nitrato de plata. Con la expresión de arriba, calculamos los moles de soluto, y luego su masa. Posteriormente, calculamos el volumen con la densidad, y finalmente podremos calcular el solvente de esta forma:

V ste = Vsol - Vsto

Primero calcularemos los moles de soluto:

moles = M * V

moles = 2 * 0.800 = 1.6 moles

Con estos moles, se calcula la masa usando el peso molecular reportado que es 169.87 g/mol:

m = moles * PM

m = 1.6 * 169.87 = 271.792 g

Ahora usando el valor de la densidad, calcularemos el volumen de soluto empleado:

d = m/V

V = m/d

V = 271.792 / 4.35

V = 62.48 mL

Finalmente, la cantidad de agua necesaria es:

V agua = 800 - 62.48

V agua = 737.52 mL

8 0
4 years ago
What is the mass (in grams) of 169 mole of CF4
Sergeu [11.5K]
The answer will depend on the number of significant figures you want in your answer, so I can't give you a solid answer, but the process is still the same: you convert from grams to moles by using the molar mass.

You can calculate the molar mass of carbon tetrafluoride from the periodic table, by adding the molar mass of 1 atom of C and 4 atoms of F. Round the total molar mass to the appropriate number and multiply 169 moles by the molar mass you just calculated.

Hope this helps!
3 0
4 years ago
True or False: The atoms that make up the element oxygen are exactly the same as the atoms that make up the element hydrogen.
EleoNora [17]
TRUE i hope this helps let me know if you need more help

4 0
3 years ago
Read 2 more answers
The moon is 260,000 miles away. How many feet is it from earth?
VARVARA [1.3K]

Answer:

1,372,800,000 Feet

Explanation:

1 Mile = 5280 Feet

260,000 Miles = 5280 × 260,000 Feet

260,000 Miles = 1,372,800,000 Feet

7 0
3 years ago
Three Balanced equations for Ammonium salt+Alkali=Salt+water+carbon dioxide
arlik [135]

Answer:

NH₄Cl (aq) + NaOH (aq) -> NaCl (aq) + H₂O (l) + NH₃ (g)

(NH₄)₂CO₃ (aq) + 2KOH (aq) -> K₂CO₃ (aq) + 2H₂O (l) + 2NH₃(g)

NH₄NO₃ (aq) + LiOH (aq) -> LiNO₃ (aq) + H₂O (l) + NH₃ (g)

Explanation:

The gas liberated when an alkali reacts with an ammonium salt is NH₃ (ammonia), not CO₂.

4 0
3 years ago
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