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Sauron [17]
2 years ago
15

how many grams of water can be produced when 65.5 grams of sodium hydroxide react with excess sulfuric acid.

Chemistry
1 answer:
34kurt2 years ago
3 0

2NaOH+H2SO4--> Na2SO4+2H2O

80g NaOH(40g/mol)--> 36g H2O (18g/mol)

65.5 x (1/40g/mol)= 1.64 moles of NaOH

1.64 x 18g/mol= 29.5 g H2O

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Answer:

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Explanation:

7 0
2 years ago
How many atoms in 1kg of platinum<br> a 2.5x10^24<br><br> b 3.1x10^24
Nutka1998 [239]

Answer:

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3 years ago
What is the volume of 0.20 moles of helium at STP?
stealth61 [152]

The volume of 0.20 moles of helium at STP is 4.5 liters.

Explanation:

Given:

Number of moles  = 0.20 moles

To Find:

The volume of Helium at STP =?

Solution:

According to ideal gas law

PV = nRT

where

P is pressure,  

V  is volume,  

n  is the number of moles  

R  is the gas constant, and  

T  is temperature in Kelvin.

The question already gives us the values for  p  and  T ,because helium is at STP. This means that temperature is  273.15 K  and pressure is  1 atm .

We also already know the gas constant. In our case, we'll use the value of  

0.08206 L atm/K mol  since these units fit the units of our given values the best

On substituting these values we get

1 atm \times  V = 0.20 moles  \times  0.08206 L atm/K mol

V = \frac{0.20 moles  \times  0.08206 L atm/K mol }{ 1 atm}

V = \frac{4.482}{1}

V =  4.5 Liters

7 0
2 years ago
Cuántos moles y gramos de Hcl pueden producirse a partir de 945g de ácido sulfúrico.?​
Xelga [282]
I’m confused and that comment above is probably a trafficker
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This is when an organism like insects or plants become trapped in amber
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