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3 years ago

12

What do you predict will happen when the substances to make the putty and dough are combined?

1 answer:

andrew-mc [135]3 years ago

7 0

Answer: Clay

Explanation:

Putty is a cementing material which is used for white wash and filling up the holes on the wall. It is a mixture of calcium carbonate along with oil solvent. The dough is a powdery substance. When putty and dough are combined they form a clay which is of high density as compared to other two materials. It is thick and rigid.

So, when a putty and dough combines then a clay will form.

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Calculate the percentage by mass of the indicated element in the following compounds. Hydrogen in ascorbic acid, HC6H7O6, also k

Scorpion4ik [409]

Answer: The mass percent of hydrogen in ascorbic acid is 4.5 %

Explanation:

In $C_6H_8O_6$ , there are 6 carbon atoms, 8 hydrogen atoms and 6 oxygen atoms.

To calculate the mass percent of element in a given compound, we use the formula:

$\text{Mass percent of hydrogen}=\frac{\text{Mass of hydrogen}}{\text{Molar mass of ascorbic acid}}\times 100$

Mass of hydrogen = $8\times 1g/mol=8g$

Molar Mass of ascorbic acid = $6\times 12g/mol+8\times 1g/mol+6\times 16g/mol=176g$

Putting values in above equation, we get:

$\text{Mass percent of hydrogen}=\frac{8g}{176}\times 100=4.5\%$

Hence, the mass percent of of hydrogen in ascorbic acid is 4.5 %.

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