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ivann1987 [24]
3 years ago
12

How many moles of water are produced when 2 moles of NaHCO3 react with 2 moles of HCI?

Chemistry
1 answer:
Tju [1.3M]3 years ago
7 0

Answer:

H₂O = 3.56 moles

MgCl₂ = 1.78 moles

Explanation:

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HELP PLEASE FAST 100 POINTS
gizmo_the_mogwai [7]

In any chemical reaction, the mass of the products must equal the mass of the reactants. The mass of product B is the same as the combined mass of Reactant A and H₂O.

4 0
2 years ago
1. What number on the periodic table determines the number of electrons lost or gained?
vekshin1

Answer:

1. atomic #

2.The sugar-water is a homogeneous mixture

Explanation:

1.  However, if it has positive ion, then this electron number will go down (ie +2 charge means two electrons have been lost, so the electron/atomic number will go down by two) and vice versa.

2.Sugar dissolves and is spread throughout the glass of water. The sand sinks to the bottom. The sugar-water is a homogenous mixture while the sand-water is a heterogeneous mixture. Both are mixtures, but only the sugar-water can also be called a solution.

8 0
3 years ago
Enter your answer in the provided box. an aqueous solution containing 10 g of an optically pure substance was diluted to 500 ml
sladkih [1.3K]

Answer:

[α] = -77.5° / \frac{\textup{dm-g}}{\textup{mL}}

Explanation:

Given;

Mass of optically pure substance in the solution = 10 g

Volume of water = 500 mL

Length of the polarimeter, l = 20 cm = 20 × 0.1 dm = 2 dm

measured rotation = - 3.10°

Now,

The specific rotation ( [α] ) is given as:

[α] = \frac{\alpha}{c\times l}

here,

α is the measured rotation = -3.10°

c is the concentration

or

c = \frac{\textup{Mass of optically pure substance in the solution}}{\textup{Volume of water}}

or

c =  \frac{10}{500}

or

c = 0.02 g/mL

on substituting the values, we get

[α] = \frac{-3.10^o}{0.02\times2}

or

[α] = -77.5° / \frac{\textup{dm-g}}{\textup{mL}}

7 0
3 years ago
Is it true that Organisms need water, vitamins and minerals. But they do not need salt to function.
Veseljchak [2.6K]
All organisms need water, vitamins, minerals, and salt together to balance things out.
5 0
3 years ago
Which of the following wouldn't be a good tool to use when measuring pH values of solutions?
aev [14]

litmus paper

Because it will just tell if the solution is acidic or basic, it won't tell the pH

4 0
3 years ago
Read 2 more answers
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