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FromTheMoon [43]
3 years ago
12

What’s the ph of a 6.7*10^-5 m H+ solution

Chemistry
1 answer:
never [62]3 years ago
4 0

Answer:

Ph= -log10[H+}

Explanation:

Ph+ -log 10(6.7*10-5)≅ 4

 

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a sample of ammonia contains 9g hydrogen and 42g nitrogen. another sample contains 5g hydrogen .calculate the amount of nitrogen
balandron [24]
9 g of hydrogen - 42 g of nitrogen
5 g of hydrogen - x g of nitrogen

9x=42 \cdot 5 \\
9x=210 \\
x \approx 23.33

The mass of nitrogen in the second sample is 23.33 g.
4 0
3 years ago
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Yuliya22 [10]

Answer:

Hello, Your answer is <em>B) Making observations</em>

<u><em>(Hope That Helps Your Answer)</em></u>

3 0
3 years ago
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A package contains 1.33 lb of ground round. If it contains 29% fat, how many grams of fat are in the ground round? The book is s
Effectus [21]

Answer:

To obtain the grams of fat that the ground round has, knowing that it weighs 1.33 pounds we must pass this value to grams. Since 1 pound equals 453.59 grams, 1.33 pounds equals 603.27 (453.59 x 1.33).

Now, to obtain 29 percent of 603.27, we must make the following calculation: 603.27 / 100 x 29, which gives a total of 174.94 grams.

In this way, your reasoning is correct and it is probably a mistake in the book.

6 0
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I will make you brainiest! In this analogy, which part of the lunar cycle is waning - from the new moon to the full moon or the
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A container holds gallons of water . how many liters
Likurg_2 [28]

This is how you convert gallons to liters.

  1. Gallon is a volumetric unit.
  2. 1 gallon equals 3.785 liters
  3. So, you create this conversion factor: 1 gal = 3.785 liter ⇒ 1 = 3.785 liter / 1 gallon.
  4. Therefore, you can multiply any amount in gallons by the conversion factor and get the equivalent amoun in liters.
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