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bearhunter [10]
2 years ago
14

How many moles are in 390g of silver nitrate

Chemistry
2 answers:
Karolina [17]2 years ago
6 0
There are 2.3 moles (because of significant figures)
katen-ka-za [31]2 years ago
5 0

Answer:

what's 9+10 21 your stuiped no I aint

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Calculate the grams of ethane present in a sample containing 0.8286 moles if the molar mass of ethane is 30.067 g/mol.
BlackZzzverrR [31]
N = m/M

Where,

n = number of moles

m = mass of substance

M = molar mass of substance

0.8286 = m / 30.067

Multiply both sides by 30.067

m = 24.9135162g




5 0
2 years ago
C1 Progress quiz: Atomic structure 2 - test
myrzilka [38]

Answer:

0.11 nm

Explanation:

1.1 x 10-10 m

The goal is to convert the atomic radius from meters (m) to nanometres (nm). We do this by multiplying the value by 10^9.

This is given as;

1.1 * 10^{-10}  * 10^{9}\\1.1 * 10^{-10 + 9}\\1.1 * 10^{-1}\\0.11

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3 years ago
An atom of an alkaline earth metal reacts with another element to form a compound. Which element MOSTLY LIKELY combined with the
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3 0
3 years ago
A mixture has particles that cannot be seen but do reflect light
Arturiano [62]
The correct answer among the choices given is the last option. A mixture has particles that cannot be seen but do reflect light. It should be classified as a colloid.  A colloid is a mixture in which one substance is suspended throughout another substance.
7 0
3 years ago
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Sulfuric acid, H 2 S O 4 , is an important industrial chemical, typically synthesized in a multi-step process. What is the perce
STatiana [176]

Answer:

71.8%

Explanation:

The percent yield of a process or a chemical reaction is calculated as:

percent yield = actual yield/theoretical yield x 100%

From the problem we have:

theoretical yield = 3.9 kg

actual yield = 2.8 kg

Thus, we calculate the yield of H₂SO₄ production as follows:

percent yield = (2.8 kg/3.9 kg) x 100 = 71.79 % ≅ 71.8%

3 0
3 years ago
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