The formula of alcohol are
1.913 g CO2/44 = 0.043 moles of CO2*12 = 0.043 moles of C 1.174 gram H2O/18 = 0.065 moles of H.
O: 1 - 0.516 g C - 13 g H = 0.354 g O/16 = 0.022 moles of O.
we have 0.043:0.130.;0.022 as C:H:O. Diving by the smallest no. 0.022 we get 1.95:5.9:1 or 2:6:1 as C:H:O.
hope this help
Answer:
Proton and neutrons
Explanation:
they both have a mass of 1 amu or 1 atomic mass
Answer:
The average mass of the gold coin reported to five significant figures, even though you had to divide by "3" to obtain the average.
Explanation:
Given that,
The mass of a silver liberty was measured three times and each measurement was made to five digits.
The mass values are,



The average mass of the gold coin is 12.512 g.
We know that,
Significant figures :
Significant figures is explained the nonzero, leading zero and zeros between two nonzero digits.
For example,
The digits is 0.003405
In the digit, 345 = nonzero
0.00 = leading zero
The average mass of the gold coin reported to five significant figures because average mass is 12,512. All digits are nonzero.
Nonzero digit are significant.
Hence, The average mass of the gold coin reported to five significant figures, even though you had to divide by "3" to obtain the average.
objects in motion tend to stay in motion unless acted upon by an outside force.
Answer:
total worth of all the gold: $3.64 E15 USD
Explanation:
- density (δ) = mass/volume
∴ mass gold = 4.0 E-10 g
∴ volume = 3.6 mL = 3.6 E-3 L
⇒ δ = 4.0 E-10 g / 3.6 E-3 L
⇒ δ = 1.111 E-7 g/L
if volume = 1.5 E21 L:
⇒ mass gold = (δ)(v)
⇒ mass gold = (1.111 E-7 g/L)(1.5 E21 L)
⇒ mass gold = 1.666 E14 g
∴ price gold = $21.84 USD/g
for all the gold in the world's oceans:
⇒ price gold = (1.666 E14 g)($21.84 USD/g)
⇒ price gold = $3.64 E15 USD