Answer:
They are 1.204×10^24 atoms of hydrogen present in 18 grams of water. In order to calculate this,it is necessary to compute the number of hydrogen moles present in the sample.
Answer:
about 30g
Explanation:
Molarity = mol/L
*convert mL to L*
3M=xmol/.25
xmol = .75
*convert to g
.75 mol NaOH * 40g/mol = 30 g
Answer:
6.5
Explanation:
No of moles is the ratio of reacting mass to molar mass
RM - 270.4g
MM - 23+16+1= 40g/mol
270.4/40= 6.76mol
The answer is A (No; different types of chemical waste should not be mixed together).
This should be complete common sense, but the answer B is incorrect because chemical SHOULD NOT be poured down a drain because It can go out into the sewer. C is wrong because it can go through the trash can or into the dump and contaminate other things.
