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kondor19780726 [428]
3 years ago
5

If you are using a thermometer, you are measuring the.....?

Chemistry
2 answers:
marishachu [46]3 years ago
8 0
Tempurature of a substance.
Alinara [238K]3 years ago
4 0
It will be the tempature your measuring
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If the amount of copper is 6g and whole ratio to obtain copper sulfide is 4:1. How much sulfur is required for the reaction to o
Yuki888 [10]

Answer:

1.5g

Explanation:

According to this question, the amount of copper required to obtain copper sulfide in a 4:1 is 6g. This means that the ratio of copper to sulfur in the compound (copper sulfide) is 4:1.

Hence, to calculate the amount of sulfur required for the reaction to obtain copper sulfide using the above ratio, we say:

1/4 of the amount of copper required (6g)

= 1/4 × 6

= 6/4

= 1.5g of sulfur is required for the reaction to obtain carbon sulfide.

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3 years ago
In a certain grocery store, strawberries cost $5.76 per pound ( 5.76 dollars/lb ). what is the cost per ounce? express your answ
maria [59]
$6.72/lb = $6.72/16 oz = $0.42/oz = 42 cents per ounce 

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3 years ago
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How many gallons in 1.3 liter for gas tank?
Veseljchak [2.6K]

0.34342367

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3 years ago
A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas reaction vessel. The vessel is
Andre45 [30]

Answer:

525°C is the maximum safe operating temperature the engineer should recommend for this reaction.

Explanation:

Volume of the cylindrical container = V = \pi r^2h

Height of the vessel = h =60.0 cm

Diameter of the vessel = d = 50.0 cm

Radius of the vessel = r = 0.5d = 25.0 cm

V=3.14\times (25.0 cm)^2\times 60.0 cm=117,809.72 cm^3=117,809.72mL

1 cm^3=1 mL

1 mL = 0.001 L

117,809.72 mL = 117,80972 L ≈ 118 L

Pressure of the gas in vessel = P = 7.40 MPa = 7.40\times 10^6 Pa

1 MPa = 10^6 Pa

1 atm = 101325 Pa

P=\frac{7.40\times 10^6}{101325} atm=73.0 atm

Mass sulfur hexafluoride gas = 19.2 kg = 19200 g

1 kg = 1000 g

Moles of sulfur hexafluoirde = \frac{19200 g}{146 g/mol}=131.5 mol

Temperature of the gas in vessel = T

Using an ideal gas equation :

PV=nRT

T=\frac{PV}{nR}=\frac{73.0 atm\times 118 L}{0.0821 atm L/mol K\times 131.5 mol}

T = 797.8 ≈ K 798 K

T = 798 - 273°C = 525°C

525°C is the maximum safe operating temperature the engineer should recommend for this reaction.

3 0
3 years ago
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