3 years ago

What salivary glands are responsible for the beginning of the digestion of food?

Chemistry

1 answer:

Komok [63]3 years ago

8 0

I think this what you're looking for http://www.webmd.com/oral-health/salivary-glands

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The surface temperature on Venus may approach 757 K. What is this temperature in degrees Celsius?

kotykmax [81]

Explanation:

1 ) Temperature of Venus in Kelvins = 757 Kelvins

$0^oC=273 Kelvins$

Temperature of Venus in degrees Celsius = $757-273 K=484 K$

2 ) Temperature on Mercury at night = $-269^oF$

$(T)^oC=((T)^oF-32)\times \frac{5}{9}$

$(T)^oC=((-269)^oF-32)\times \frac{5}{9}=167.22^oC$

Temperature on Mercury at night in degree Celsius = 167.22° C

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sergij07 [2.7K]

Answer:

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g 10.00 mL of phosphoric acid (H3PO4) are titrated with 0.1000 M sodium hydroxide. 15.00 mL of the sodium hydroxide solution are

aliya0001 [1]

Answer: The molarity of phosphoric acid is 0.05 M

Explanation:

A neutralization reaction is defined as the reaction in which an acid reacts with a base to form a salt and water molecule.

At equivalence, moles of acid becomes equal to the moles of base. The equation for the neutralization follows:

$n_1M_1V_1=n_2M_2V_2$ ........(1)

where,

$n_1, M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid that is $H_3PO_4$

$n_2, M_2\text{ and }V_2$ are the n-factor, molarity and volume of the base that is NaOH

Given values:

$n_1=3\\M_1=?M\\V_1=10.00mL\\n_2=1\\M_2=0.1000M\\V_2=15.00mL$

Plugging values in equation 1:

$3\times M_1\times 10.00=1\times 0.1000\times 15.00\\\\M_1=\frac{1\times 0.1000\times 15.00}{3\times 10.00}\\\\M_1=0.05M$

Hence, the molarity of phosphoric acid is 0.05 M

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