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Serhud [2]
3 years ago
11

Formula of sodium bicarbonateplease help me with this​

Chemistry
1 answer:
Stels [109]3 years ago
5 0

Answer:

NaHCO₃

Explanation:

Sodium bicarbonate (baking soda) is a chemical compound with the formula NaHCO₃.

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What is the molecular formula of a hydrocarbon with m+ = 78?
fiasKO [112]

A molecular formula represents the exact number of atoms present for each element in the compound.  

For carbon atom: \frac{78}{12} = 6\frac{6}{12} ( as molar mass of carbon is 12 g/mol)

Now, 6 carbon atoms are present and rest are hydrogen atoms i.e. 6

Thus, formula becomes C_{6}H_{6} ( C_{x}H_{y})

Now, check for unsaturation:

Degree of unsaturation  = \frac{2x+2-y}{2}

Substitute the value of x and y,

Degree of unsaturation  = \frac{2(6)+2-6}{2}

= \frac{12-4}{2}

= 4 implies one ring and three double bonds.

Thus, formula comes out to be C_{6}H_{6} i.e. benzene ring.



4 0
3 years ago
Containers of ice cream are sold by volume, not by weight. Some ice cream manufacturers pump air into the ice cream before packa
tiny-mole [99]
C because in simple terms it takes more space
3 0
3 years ago
The pressure inside a gas cylinder is 3,506 mmHg. How many atmospheres of pressure is the gas exerting on the cylinder?
PSYCHO15rus [73]
Below are the choices:

a)0.2168 atm 
<span>b)4.613 atm </span>
<span>c)34.60 atm </span>
<span>d467.4 atm 
</span>
1 atm = 760mmHg : Therefore: 
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</span>B is correct answer. 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
7 0
3 years ago
Read 2 more answers
NaOH + HCl → NaCl + H2O. What mass of water forms when 2.75 × 10–4 mol NaOH reacts completely? given the equation, 2.75 × 10–4 m
Hoochie [10]
The balanced chemical reaction is written as:

<span>NaOH + HCl → NaCl + H2O

We are given the amount of sodium hydroxide to be used up in the reaction. This will be the starting point for the calculation. 

2.75 x 10^-4 mol NaOH ( 1 mol H2O / 1 mol NaOH ) ( 18.02 g H2O / 1 mol H2O ) = 4.96 x 10^-3 g H2O</span>
5 0
3 years ago
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4)a liquid is poured into a beaker in question 3 and the mass is 146g what is the mass of the liquid in kilograms
GaryK [48]
1 kg ------- 1000 g
? ----------- 146 g

146 x 1 / 1000

= 0.146 kg
5 0
3 years ago
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