A moist soil sample weighing 5 lb has a moisture content of 2%. How many mL of water must be added to the sample to increase the moisture content to 10%? (This calculation is needed for your Compaction lab)

The answer is 181.437 ml of water to increase the soil's moisture content to 10%.

Explanation:

We have been given:

Soil weight = 5 lb = 2.26796 kg

2% of moisture ⇒ × 2.26796    =    0.045359 kg of water in the soil

10% of moisture ⇒ × 2.26796    = 0.226796 kg of water in the soil

The difference in moisture content = (0.226796 - 0.045359) kg

=0.181432 kg

But 1kg = 1000 ml

∴ 0.181437 kg = 181.437 ml of water required to increase the moisture content to 10%

answer; /// the amount of material dissolved in a measure of liquid(concentration) the above statement is (true); /// good luck

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms