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3 years ago

Uhh ill give brainliest??

Chemistry

1 answer:

Yakvenalex [24]3 years ago

7 0

Explanation:

Given parameters:

Density of the ethanol = 0.789g/mL

Volume of the ethanol in the cylinder = 900mL

Unknown:

Mass of the ethanol = ?

Solution:

Since density is the mass per unit volume of a substance;

mass = density x volume

Now insert the parameters and solve;

mass = 0.789g/mL x 900mL

mass = 710g

In scientific notation we have 7.10 x 10²g

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damaskus [11]

Answer:

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As the atom bonded with hydrogen atom have an equivalent partial negative charge, so it can only accept H-bonds from other atoms.

Thus, c-h groups forming weak hydrogen bonds are more likely to be hydrogen bond donor group.

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3 years ago

rite stepwise equations for protonation or deprotonation of this polyprotic species in water. What are the products of the first

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Answer: The products of the given chemical equation are $HCO_3^-\text{ and }OH^-$

Explanation:

Protonation equation is defined as the equation in which protons get added in the substance.

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$CO_3^{2-}+H_2O\rightarrow HCO_3^-+OH^-$

By Stoichiometry of the reaction:

1 mole of carbonate ion reacts with 1 mole of water to produce 1 mole of hydrogen carbonate ion and 1 mole of hydroxide ion

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4 years ago

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3 years ago

What is the pH of a 0.025 M [OH−] solution? a. 0.94 b. 1.60 c. 9.60 d. 12.40

chubhunter [2.5K]

Answer : The correct option is, 12.40

Explanation : Given,

Concentration of $OH^-$ ion = 0.025 M

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$pOH=1.6$

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3 years ago

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iVinArrow [24]

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