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Kamila [148]
3 years ago
15

1. How many molecules are found in 13.7 moles of CuNO3? Please explain step by step

Chemistry
1 answer:
Gennadij [26K]3 years ago
7 0

Answer:

1 moles

Explanation:

The answer is 0.0011897028836018. We assume you are converting between moles CuNo3 and gram. You can view more details on each measurement unit: molecular weight of CuNo3 or grams The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CuNo3, or 840.546 grams.

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Carbon tetrachloride, once widely used in fire extinguishers andas a dry cleaning fluid, has been found to cause liver damage to
Svetradugi [14.3K]

Answer:option D= 82.6°C

Explanation:

Step 1: determine the molality

Molality = moles of solute/ kg of solvent.

(Recall: number of moles= mass / molar mass).

Therefore, 375/256.5 g/mol = 1.4620 mole.

Substituting into the molality equation we have,

1.4620/ 0.1250kg = 11.696.

∆T(b) = k(b) × molality

∆T(b) = 82.6°C

6 0
3 years ago
¿Por qué se generan rayos (tormenta eléctrica) cuando un volcán hace erupción ?
rosijanka [135]

Answer:

Los relámpagos volcánicos surgen de la colisión y fragmentación de partículas de ceniza volcánica (y, a veces, hielo), que generan electricidad estática dentro de la columna volcánica, lo que lleva al nombre de tormenta eléctrica sucia. La convección húmeda y la formación de hielo también impulsan la dinámica de la pluma de erupción y pueden desencadenar rayos volcánicos. por cierto utilicé un traductor espero que esto ayude ^^

Explanation:

5 0
3 years ago
Which changes occur when Pt2+ is reduced? A) The Pt2+ gains electrons and its oxidation number increases. B) The Pt2+ gains elec
mel-nik [20]

Answer:

C

Explanation:

5 0
3 years ago
Sphalerite contains about 30% zinc. Calculate the maximum amount of zinc that could be obtained from 1000kg sphalerite.
melisa1 [442]

Answer:

300kg

Explanation: The question says about 30%, so I think it is 300kg

3 0
3 years ago
Draw the alkyl bromide(s) you would use in a malonic ester synthesis of ethyl 2-methyl-4-pentenoate
Rudik [331]

The structure of the alkyl bromides used in a malonic ester synthesis of ethyl 2-methyl-4-pentenoate are as drawn in the attached image.

<h3>Ethyl 2-methyl-4-pentenoate by Malonic ester synthesis.</h3>

The malonic ester synthesis is a chemical reaction characterized by the alkylation of diethyl malonate or a similar ester of malonic acid at the carbon alpha (directly adjacent) to both carbonyl groups, and subsequently converted to a substituted acetic acid.

Hence, it follows from the structure of Ethyl 2-methyl-4-pentenoate that the alkyl bromides used are Ethyl bromide and methyl bromide.

Read more on Malonic ester synthesis;

brainly.com/question/17237043

6 0
2 years ago
Read 2 more answers
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