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sladkih [1.3K]
3 years ago
14

How many significant figures are in this measurement? 10.006 L

Chemistry
1 answer:
bixtya [17]3 years ago
7 0

Answer: There are 5 significant figures in 10.006L

Explanation: Since there is a decimal point, all the digits after the decimal point also count as significant figures. Below is a key to help yu out:

Not Significant:

- Leading zeroes(in decimal): example- 0.0023= 2 sig figs

- Trailing zeroes with no decimal point: example- 2300= 2 sig figs

Significant:

- middle zeroes: example- 4003= 4 sig figs

-trailing zeroes with decimal point: example- 23.00= 4 sig figs

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Ethylene gas and steam at 320°c and atmospheric pressure are fed to a reaction process as an equimolar mixture. the process prod
Reil [10]
The heat transfer formula is;
Q = m * c * Δ T >>>> (1)
where, Q is the heat transfer
m = mass  (gram)
c = the specific heat capacity (J/g)
Δ T = change in temperature
∵ we have one mole of Ethanol
∴ the weight of ethanol equals its molecular weight = (2*12)+(6*1)+(16) = 46 g
we will assume that the specific heat capacity of ethanol is 2.46 J/g (from google) 
ΔT = 25 - 320 = - 295 C
By substitution in (1)
∴ Q = 2.46 * 46 * (-295) = - 33382.2 J
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4 years ago
True or False- The parts of a mixture keep their own properties when they are combined.
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3 years ago
Both renewable and nonrenewable resources are used within our society. How do the uses of nonrenewable resources compare to the
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4 0
3 years ago
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What is the mass of 975 mL of mercury? Its density is 13.5 g/mL
miss Akunina [59]

Answer:

72.22 g

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7 0
3 years ago
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AVprozaik [17]

Answer: The pressure of the He is 2.97 atm

Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_{N_2}+p_{O_2}+p_{He}.

Given : p_{total} =total pressure of gases = 6.50 atm

p_{N_2} = partial pressure of Nitrogen = 1.23 atm

p_{O_2} = partial pressure of oxygen = 2.3 atm

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putting in the values we get:

6.50atm=1.23atm+2.3atm+p_{He}  

p_{He}=2.97atm

The pressure of the He is 2.97 atm

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3 years ago
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