Chemistry, 26.08.2019 23:50 Tnaaasty8812

What is the percentage of water in the hydrate cocl2*6h20?

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You are given the hydrate CoCl2.6H20. You are required to get the percentage of water in this chemical substance. The first thing to do is to get the molar mass of CoCl2.6H20 and CoCl2. The molar masses are 237.8 grams per mole and 129.8 grams per mole respectively. The formula in getting the percentage of water is

%=[1-(grams of CoCl2/grams of CoCl2.6H20)]*100.

Substitute the molar masses of CoCl2.6H20 and CoCl2.

%=[1-(129.8 grams of CoCl2/237.8 grams of CoCl2.6H20)]*100.
% of water = 45.42%

Answer from: hungtistic

Answer : The percentage of water in the hydrate CoCl_2.6H_2O is, 45.39 %

Explanation :

As we know that,

The molar mass of CoCl_2.6H_2O = 237.93 g/mole

The molar mass of water (H_2O) = 18 g/mole

The molar mass of $6\times (H_2O)$ = 6 × 18 g/mole = 108 g/mole

Now we have to calculate the percentage of water in the hydrate CoCl_2.6H_2O

$\%\text{ of water}=\frac{\text{Molar mass of }CoCl_2.6H_2O}{\text{Molar mass of }H_2O}\times 100$

Now put all the given values in this formula, we get the percentage of water in the hydrate CoCl_2.6H_2O

$\%\text{ of water}=\frac{108g/mole}{237.93g/mole}\times 100=45.39\%$

Therefore, the percentage of water in the hydrate CoCl_2.6H_2O is, 45.39 %

Answer from: Quest

explanation:

the largest database of organic compounds lists about 10 million substances, which include compounds originating from living organisms and those synthesized by chemists. the number of potential organic compounds has been estimated at 1060—an astronomically high number. the existence of so many organic molecules is a consequence of the ability of carbon atoms to form up to four strong bonds to other carbon atoms, resulting in chains and rings of many different sizes, shapes, and complexities. the simplest organic compounds contain only the elements carbon and hydrogen, and are called hydrocarbons. even though they are composed of only two types of atoms, there is a wide variety of hydrocarbons because they may consist of varying lengths of chains, branched chains, and rings of carbon atoms, or combinations of these structures. in addition, hydrocarbons may differ in the types of carbon-carbon bonds present in their molecules. many hydrocarbons are found in plants, animals, and their fossils; other hydrocarbons have been prepared in the laboratory. we use hydrocarbons every day, mainly as fuels, such as natural gas, acetylene, propane, butane, and the principal components of gasoline, diesel fuel, and heating oil. the familiar plastics polyethylene, polypropylene, and polystyrene are also hydrocarbons. we can distinguish several types of hydrocarbons by differences in the bonding between carbon atoms. this leads to differences in geometries and in the hybridization of the carbon orbitals.

Answer from: Quest

i believe the answer is c. "baking" is the gerund, while "baking blueberry muffins" would be the gerund phrase. hope this ! : )

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