Answer:
the correct answer is option C. Na
Answer: b// dispositional attribution
Explanation:
If a hypothesis is stated and outcome of the experiment is what was predicted, then it supports the hypothesis. if the experiment does not support the hypothesis, then the outcome was not what was predicted.
Answer:
Explanation:
To find how many moles are in the sample, you first must calculate how much one mole of C2H5OH weighs.
2(mass of C) + 5(mass of H) + (mass of O) + (mass of H)
= 2(12.01) + 5(1.008) + (16.00) + (1.008) = 46.068 g/mol
So, now that we know what 1 mole weighs, we can simply divide the weight of the sample by the weight of a mole of ethanol to get our answer.
39.2 / 46.068 = approximately 0.851 mol of ethanol
Answer:
288.19
Explanation:
C19 = 12.01 = 228.19
H28 = 1.00 x 28 = 28
O2 = 16 x 2 = 32
228.19 + 28 + 32 = 288.19