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8090 [49]
2 years ago
10

Formula of sodium bicarbonate​

Chemistry
2 answers:
kupik [55]2 years ago
4 0

Answer:

NaHCO3

Explanation:

The three is small at the bottom at the end

lutik1710 [3]2 years ago
3 0

NaHCO3 is the answer for the query

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The three most common states of matter on Earth are solids,blank
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7 0
3 years ago
Sodium carbonate (NaCO3) is sometimes used as a water-softening agent. Suppose that a worker prepares a 0.730 M solution of NaCO
sergey [27]

The molarity of a solution is the number of moles of a substance divided by the volume in liters prepared.

molarity=\frac{n}{V}, where n is number of moles and V is the volume in liters.

In order to calculate the mass of solute we need to convert the volume and molarity to moles

1.421 L solution \times\frac{0.0730 moles}{1 Lsolution}= 1.037 mol NaCO_3

Now that we have moles we use the relative formula mass of NaCO₃, We have 1 Na atom, 1 C atom and 3 O atoms, thus

M_r= (1\times 22.99) + (1\times 12.00) + (3\times 16.00)= 82.99g/mol

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5 0
3 years ago
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What are the 5 ways to identify if a chemical reaction happened?
vlada-n [284]

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a new substance is formed, if heat is formed, color change, the evolution of gas, and bubbles or fizzing

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3 years ago
Suppose a 10.0 mL sample of an unknown
mote1985 [20]

The concentration of HCl is equal to 2.54mol/L.

<h3>Mole calculation</h3>

To solve this question, one must use the molarity calculation, which corresponds to the following expression:

                                               M = \frac{mol}{v}

Thus, to find the molarity of the sample, the following calculations must be performed:

V_f = 10ml + 625ml = > 635ml

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So, 0.00254 moles were added per 10ml, so we can do:

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So, the concentration of HCl is equal to 2.54mol/L.

Learn more about mole calculation in: brainly.com/question/2845237

6 0
2 years ago
What is the molar mass of aluminum (Al)
Papessa [141]

Answer:

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One mole of Al atoms has a mass in grams that is numerically equivalent to the atomic mass of aluminum. The periodic table shows that the atomic mass (rounded to two decimal points) of Al is 26.98, so 1 mol of Al atoms has a mass of 26.98 g.

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