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sashaice [31]
3 years ago
8

QUESTION 47

Chemistry
2 answers:
PtichkaEL [24]3 years ago
8 0
The last option…answer is D ar
otez555 [7]3 years ago
4 0

Answer:

The answer is the last option. Ar

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Is the dissolution of borax in water a temperature dependent reaction or is it spontaneous at all temperatures at which water is
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The dissolution of borax in water is a temperature dependent reaction. With the higher temperature, the salt dissolve quickly.

<h3>What is borax?</h3>

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2 years ago
The chemist discovers a more efficient catalyst that can produce ethyl butyrate with a 78.0% yield. How many grams would be prod
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The grams that would be produced  from 7.70 g of butanoic acid and excess ethanol is 7.923grams

calculation

Step 1: write the chemical equation for the reaction

CH3CH2CH2COOH + CH3CH2OH →  CH3CH2CH2COOCH2CH3  +H2O

step 2: find the moles of butanoic acid

moles= mass/ molar mass

=  7.70 g/ 88 g/mol=0.0875 moles

Step 3:  use the mole ratio to determine the moles of ethyl butyrate

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step 4: find mass = moles x molar mass

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3 years ago
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