<span>0.6 = mass/1.2 </span>
<span>mass = 0.6 x 1.2 </span>
<span>= 0.72 g </span>
Answer:
0.001 M
Explanation:
The pH scale is used to determine the acidity or basicity of a solution.
- If pH < 7, the solution is acid.
- If pH = 7, the solution is neutral.
- If pH > 7, the solution is basic.
The pH is related to the concentration of hydrogen ions through the following expression.
pH = -log [H⁺]
[H⁺] = antilog -pH = antilog - 3 = 0.001 M
Here is the formula that will help to solve this task: <span>P1/T1 = P2/T2 </span>
<span>
Keep in mind that value 20 C is an equivalent to 293 K.
If you have to make new pressure</span><span> 12.4 atm, the given temperature must be changed intor 284K.
Therefore:
</span>The correct answer is B)At 15.4 atm, T2 would have to be 353 K (which is 120 C)
As you can see, these options are not suitable:
<span>At 16.6 atm, T2 would have to be 381 K </span>
<span>At 18.6 atm, T2 would have to be 426 K</span>
<span>The first blank is 2 hours and the second blank is 4 hours. Temperature control is extremely important in food handling, because the incorrect usage can cause harmful bacteria to grow in the food. However, this bacteria doesn't live grow very well when the food temp is hotter than 135 degrees or cooler than 41 degrees. In regard to the second question, you will need to put on a new pair of gloves any time they are contaminated or damaged. This way, the food will never come into contact with your skin or with the contamination.</span>
