Answer:
the other variable is also doubled
Explanation:
direct proportion, same thing has to happen to both variables
The total mass of the original tissue were from the source which are the pig ovaries. But first, convert 5.6 tons to mg.
5.6 tons × (1000 kg/1 ton) × (1000 g/1kg)×(1000 mg/1g) = 5.6 x 10^9 mg
Thus, the percentage of estrone in the original tissue is
(12.0 mg /5.6 x 10^-9 mg) x 100 = 2.14 x 10^-7 %
Answer:
1.18 moles of CS₂ are produced by the reaction.
Explanation:
We present the reaction:
5C + 2SO₂ → CS₂ + 4CO
5 moles of carbon react to 2 moles of sulfur dioxide in order to produce 1 mol of carbon disulfide and 4 moles of carbon monoxide.
As we do not have data from the SO₂, we assume this as the excess reagent. We convert the mass of carbon to moles:
70.8 g / 12 g/mol = 5.9 moles
Ratio is 5:1, so 5 moles of carbon react to produce 1 mol of CS₂
Then, 5.9 moles will produce (5.9 . 1) / 5 = 1.18 moles
Answer: B. CH₂OH
Explanation:
First off, we need a liquid solvent. Eliminate C and D.
Now, we have to consider polarity.
- Carbon tetrachloride is nonpolar, so sodium chloride will be insoluble.
- CH₂OH is polar, so sodium chloride will be soluble.
Reason is if a cord is cover with rubber and high currents and voltage can cause heat within which can be very harm since it can also handle and melt to a certain degree.