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meriva
2 years ago
10

What is the name for Si3S

Chemistry
1 answer:
sesenic [268]2 years ago
7 0

Answer:

Silicopropane

Explanation:

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Which of the following equations is balanced?
Georgia [21]

Answer:

B

Explanation:

4 0
2 years ago
A hydrogen filled balloon has a bolume of 8.3 L at 36 C and 751 torr. How many moles of hydrogen are inside the balloon?
alina1380 [7]

Answer:

0.33 mol

Explanation:

Given data:

Volume of balloon = 8.3 L

Temperature = 36°C

Pressure = 751 torr

Number of moles of hydrogen = ?

Solution:

Temperature = 36°C (27 +273 = 300 K)

Pressure = 751 torr (751/760= 0.988 atm)

Formula:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

PV  = nRT

0.988 atm × 8.3 L  = n × 0.0821 atm.L/ mol.K  × 300 K

8.2 atm.L = n × 24.63 atm.L/ mol

n = 8.2 atm.L / 24.63 atm.L/ mol

n = 0.33 mol

8 0
2 years ago
Pressure of gas in kilopascals
Pavlova-9 [17]
Use the formula (P1V1)/T1 = (P2V2)/T2
(12.8 * 100)/(-108 + 273) = (.855 * P2)/(22 + 273)  Need to convert Celsius into Kelvins
1280/165 = (0.855 * P2)/295
7.755556 = 0.002898 * P2
P2 = 2676.18 kPa
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7 0
3 years ago
2C6H10 + 17O2 = 12CO2 + 10H2O
Ad libitum [116K]

Answer:

n O2 = 2.125 mol

Explanation:

balanced reaction:

  • 2C6H10 + 17O2 → 12CO2 + 10H2O

∴ n CO2 = 1.5 mol

⇒ n O2 = (1.5 mol CO2)*(17 mol O2/12 mol CO2)

⇒ n O2 = 2.125 mol

6 0
3 years ago
Cow’s milk is 4.5% by mass of lactose. Calculate the mass of lactose present in 175 g of<br> milk
Reptile [31]

Answer:

7.875 grams

Explanation:

You multiply 175 g by .045

This gives you 7.875 grams of lactose

6 0
3 years ago
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