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4 years ago

When 3-methyl-3-pentanol is treated with chromic acid, Group of answer choices

Chemistry

2 answers:

san4es73 [151]4 years ago

7 0

Answer: The orange color remains unchanged. (B)

Explanation:

LenKa [72]4 years ago

6 0

Answer:

c. the purple color remains unchanged.

Explanation:

Chromic acid reacts with primary alcohols, oxidizing them to carboxylic acids. It also is capable of oxidizing secondary alcohols to ketones. Chromic acid, under mild conditions however, do not react with tertiary alcohols. 3-methyl-3-pentanol is a tertiary alcohol and therefore will not show any color change when treated with chromic acid

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A student mixes baking soda and vinegar in a glass. Are there any new substances created from this mixture?

Anni [7]

Answer:

Explanation:

1. A student mixes baking soda and vinegar in a glass. The results are shown at left. ... Yes I do belive that new substances are being formed because there is a chemical reaction between the baking soda and vinegar turning it into a bubbly substances instead of a powder and liquid.

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3 years ago

3. 78 mL of 2.5 M phosphoric acid is neutralized with 500 mL of potassium hydroxide. What is the

xenn [34]

Hence, concentration of base is 1.17 M

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3 years ago

A cat runs 27 meters in 2 seconds. What is the velocity of the cat? (answer with up to 2 decimal places)

larisa86 [58]

Velocity = change in displacement/ change over time
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3 years ago

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A 21.8 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature ris

Blababa [14]

<u>Answer:</u> The heat capacity of calorimeter is $15.66J/^oC$

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass of ethanol = 21.8 g

Molar mass of ethanol = 46.07 g/mol

Putting values in above equation, we get:

$\text{Moles of ethanol}=\frac{21.8g}{46.07g/mol}=0.473mol$

To calculate the enthalpy change of the reaction, we use the equation:

$\Delta H_{rxn}=\frac{q}{n}$

where,

$q$ = amount of heat released = ?

n = number of moles = 0.473 moles

$\Delta H_{rxn}$ = enthalpy change of the reaction = -1235 kJ/mol = $-1235\times 10^3J/mol$ (Conversion factor: 1 kJ = 1000 J)

Putting values in above equation, we get:

$-1235\times 10^3J/mol=\frac{q}{0.473mol}\\\\q=(-1235\times 10^3J/mol\times 0.473mol)=-584.16\times 10^3J$

To calculate the heat capacity of calorimeter, we use the equation:

$q=c\Delta T$

where,

q = heat absorbed by the calorimeter = $584.16\times 10^3J$

c = heat capacity = ?

$\Delta T$ = change in temperature = $T_2-T_1=62.3^oC-25^oC=37.3^oC$

Putting values in above equation, we get:

$584.16\times 10^3J=c\times 37.3^oC\\\\c=\frac{584.16\times 10^3J}{37.3^oC}=15.66J/^oC$

Hence, the heat capacity of calorimeter is $15.66J/^oC$

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4 years ago

Does a nebula have mass

allochka39001 [22]

nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. although denser than the space surrounding them, most nebulae are far less dense than any vacuum created on earth – a nebular cloud the size of the earth would have a total mass of only a few kilograms. (wikipedia)

hope this helps! ❤ from peachimin

7 0

3 years ago

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