Answer:
50 g
Explanation:
d= m/v
rearranging the above equation
m = d x v
m = 2.5 g x 20 g/cm3
m = 50 g
No, you cannot, because both acidic and basic solutions can conduct electric <span>currents.</span>
Answer:
0.32 grams
Explanation:
To go from moles to grams (I assume you meant mass instead of weight) you start by finding the molar mass. For O2, the molar mass is 32, because there are two oxygen atoms so 16 grams multiplied by 2.
After that, you take your given moles and multiply it by the grams per mole. The moles cancel each other out and you get your value in grams. I have attached my work below.
Hope this helps! :^)
The mass of an ink pen is constant no matter what instrument you use. If you weigh the ink pen on a simple platform balance, it would weigh <em>approximately 16 grams</em>. To measure this mass using a triple beam balance, follow these instructions:
1. Empty the pan, then move the three sliders on each of the beams to left ton the zero mark.
2. Place the ink pen on the pan. As a result, the beams are no longer on the zero mark. Slide the beams until the pointer is at zero.
3. To read the weight, add all the numbers in the three slider beams.
I'm pretty sure your answer should be CaCl2. Hope this helps! =^-^= (if I need to explain more just let me know.)