Answer:
3.75 * 10^7 g of this water would have been consumed.
Explanation:
ppm represents parts per million.
ppm = (mass solute / mass solution ) *10^6
⇒It is a way to express the concentration of very dilute solutions.
For this situation we have:
ppm = (grams of mercury / grams of solution ) * 10^6
0.004 = (x grams of mercury / 1g of solution) 10^6
x = 0.004 /10^6
x = 4 *10^-9 g Mercury
This mass of mercury is per gram of solution. In the next step, we can calculate the amount of solution (water plus mercury) that would have to be ingested to ingest 0.150 g of mercury
0.150 g of Hg * (1g of solution/ 4 *10^-9 g Mercury)= 3.75 *10^7
3.75 * 10^7 g of this water would have been consumed.
2.63 g
Explanation:
One way to approach this problem is to determine the percent composition of hydrogen in water.
Answer:
Because each element has an exactly defined line emission spectrum, scientists are able to identify them by the color of flame they produce. For example, copper produces a blue flame, lithium, and strontium a red flame, calcium an orange flame, sodium a yellow flame, and barium a green flame. When you heat an atom, some of its electrons are "excited* to higher energy levels. When an electron drops from one level to a lower energy level, it emits a quantum of energy. ... The different mix of energy differences for each atom produces different colors. Each metal gives a characteristic flame emission spectrum
Answer:
a would be the correct answer
Explanation:
<h2>The three major branches of natural science are</h2><h2>1.Physical,the study of universe.</h2><h2>2.Chemistry,the study of matter.</h2><h2>3.Biology,the study of life and living or organisms.</h2><h2 /><h2>have a good day.</h2><h2>I hope this answer can help you</h2>
