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inessss [21]
3 years ago
13

Find the frequency of a wave with a period of 0.5 seconds.

Chemistry
1 answer:
Goryan [66]3 years ago
3 0

Answer:

I think its 5.00000000000000000000000000000000000000000

Explanation:

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The molar mass of a compound is 92 g/mol. Analysis of a sample of the compound indicates that it contains 0.606g of N and 1.390g
Ghella [55]

Answer:

N2O4

Explanation:

To obtain the molecular formula of the compound, first, let us calculate the empirical formula for the compound. This is illustrated below:

N = 0.606g

O = 1.390g

Next, we divide the above by their molar masses

N = 0.606/14 = 0.0432

O = 1.390/16 = 0.0869

Next, we divide by the smallest

N = 0.0432/0.0432 = 1

O = 0.0869/0.0432 = 2

The empirical formula is NO2

The molecular formula is given by:

[NO2]n = 92

[14 + (16x2)]n = 92

[14 +32]n = 92

46n = 92

Divide both side by the coefficient of n i.e 46

n = 92/46

n = 2

The molecular formula = [NO2]n = [NO2]2 = N2O4

8 0
3 years ago
Read 2 more answers
What is the difference aldehyde and ketone in organic chemistry​
timama [110]

Answer:

An aldehyde is a carbonyl group with a carbonyl carbon bonded to hydrogen and can be oxidized to a ketone while a ketone is a carbonyl group with a carbonyl carbon only bonded to oxygen atom and cannot be oxidized

Some of oxidizing agents are potassium dichromates, bradys reagent....

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5 0
2 years ago
What is the molarity of 2 mol of ki dissolved in 1 l water?
LiRa [457]

Hey There!:


number of moles = 2 moles KI


Volume = 1 L


Therefore:


M = n /V


M = 2 / 1


M = 2.0 mol/L


hope this helps!

5 0
3 years ago
Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?
fiasKO [112]
<span>carbon + oxygen → carbon dioxide</span>
3 0
3 years ago
What is 3.35 x 10^14 Hz?
Andrews [41]

Answer:

335,000,000,000,000 Hz

Explanation:

3.35 x 10^14 is just scientific notation. This is a way to make a really big number small to write and easier to understand. The exponent on the 10 represents how many times you move the decimal to the right. If the exponent is negative you should move the decimal to the left. Each time the decimal is moved, and there is no pre-existing number, you need to add a zero.

3.35 x 10^14 is equal to

335,000,000,000,000

4 0
3 years ago
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