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vekshin1
3 years ago
11

What are two main purposes for using repetition when conducting experiments irements

Chemistry
2 answers:
Sloan [31]3 years ago
4 0
To reduce mistakes and save time
vazorg [7]3 years ago
4 0
To make the experiment more accurate with more valid details and accuracy.
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3 years ago
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The molar mass of barium nitrate (Ba(NO3)2) is 261.35 g/mol. What is the mass of 5.30 × 1022 formula units of Ba(NO3)2?
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5.30x10^22 x 261.35g/6.02x10^23 = 23.01 g Ba(NO3)2
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Give three examples of energy traveling in waves
mrs_skeptik [129]

Answer:

ELECTROMAGNETIC SPECTRUM. Radios, televisions, mobile phones, and radar use signals made up of electromagnetic waves. These are waves that carry energy as electricity and magnetism at the speed of light. Light we can see is also an electromagnetic wave, but other types of electromagnetic wave are invisible.

Explanation:

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3 years ago
Calculate the number of grams of deuterium in an 80,000-L swimming pool, given deuterium is 0.0150% of natural hydrogen
fiasKO [112]

Answer:

m_{Deu}=2666.7g

Explanation:

Hello,

In this case, we can apply the following mole-mass-density relationship in order to compute the required grams of deuterium, considering that it is the 0.0150% (molar basis) of natural hydrogen (H₂):

m_{Deu}=80000LH_2O*\frac{1000gH_2O}{1LH_2O}*\frac{1molH_2O}{18gH_2O}   *\frac{1molH_2}{1molH_2O} *\frac{2gH_2}{1molH_2} *\frac{2*0.0150g\ Deu}{100gH_2} \\\\m_{Deu}=2666.7g

Best regards.

4 0
3 years ago
A certain organic compound is made up of the amino acids methionine, arginine, and leucine. Which type of organic compound is th
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3 years ago
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