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3 years ago

13

Gold has a molar mass of 197 g/mol. (a) how many moles of gold are in a 3.98 g sample of pure gold? (b) how many atoms are in th

e sample?

1 answer:

Natali5045456 [20]3 years ago

6 0

A.)49.4974874 moles or 49.5 moles
B.)2.980808730172671e+25 or 3e+25

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How much heat energy would be released if 78.1 g of water at 0.00 °c were converted to ice at −57.1 °c. give your answer as a po

kolezko [41]

To convert 78.1 g of water at 0° C to Ice at -57.1°C; we can do it in steps;
1. Water at 0°C to ice at 0°C
The heat of fusion of ice is 334 J/g;
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Which of the following statements are TRUE?

SCORPION-xisa [38]

Answer:

Answered

Explanation:

1)False, electron carriers are not located at ribosomes.

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3 years ago

Suppose that a certain fortunate person has a net worth of $77.0 billion ($). If her stock has a good year and gains $3.20 billi

marissa [1.9K]

Answer:

New net worth to three significant figures = $80.2 billion

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Explanation:

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Or

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4 years ago

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