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murzikaleks [220]
3 years ago
9

Household substances that contains acid​

Chemistry
1 answer:
lidiya [134]3 years ago
8 0

Answer:

milk, lemon juice, toothpaste and baking soda

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A 0.1375-g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 J/°C. The
Anna35 [415]

Answer:

-24.76 kJ/g; -601.8 kJ/mol

Explanation:

There are two heat flows in this experiment.

Heat from reaction + heat absorbed by calorimeter = 0

             q1                +                     q2                         = 0

           mΔH             +                    CΔT                        = 0

Data:

m = 0.1375 g

C = 3024 J/°C

ΔT = 1.126 °C

Calculations:

0.1375ΔH + 3024 × 1.126 = 0

           0.1375ΔH + 3405 = 0

                        0.1375ΔH = -3405

                                   ΔH = -24 760 J/g = -24.76 kJ/g

ΔH = -24.76 kJ/g ×24.30 g/mol = -601.8 kJ/mol

3 0
3 years ago
Balance the following chemical equation (if necessary) for the synthesis of aspirin from salicylic acid and acetic anhydride sho
labwork [276]

\\ \tt\rightarrowtail C_7H_6O_3+C_4H6O_3\longrightarrow C_9H_8O_4+C_2H_4O_2

It's already balanced

On both sides

  • C=11
  • H=12
  • O=6
5 0
2 years ago
I will pay 20 points for correct answer! A graduates cylinder is filled to 15.0 mL with water and a rock is placed in the cylind
myrzilka [38]
4.4 cubic centimeters
4 0
2 years ago
Complete the chemical name of the compound CoI3
amid [387]

Answer:

Cobalt (III) Iodide

General Formulas and Concepts:

<u>Chemistry - Compounds</u>

  • Reading a Periodic Table
  • Writing Compounds
  • Naming Compounds

Explanation:

<u>Step 1: Define</u>

CoI₃

<u>Step 2: Identify</u>

Co is a Transition Metal, has either a charge of 2+ or 3+

I is a Halogen, has a charge of 1-

<u>Step 3: Write name</u>

We need to balance the charges, and in order to do that, we must have a Co³⁺

Cobalt (III) Iodide

8 0
2 years ago
What is the mass of nickel(II) nitrate (182.71 g/mol) dissolved in 25.0 mL of 0.100 M Ni(NO3)2 solution? A) 157 g B) 0.250 g C)
marusya05 [52]

Answer: 0.4578 g

Explanation:

Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.

Molarity=\frac{n\times 1000}{V_s}

where,

n= moles of solute

Moles=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{xg}{182.71g/mol}  

V_s = volume of solution  in ml = 25.0 ml

0.100M=\frac{x\times 1000}{182.71\times 25}

x=0.4578g

Thus 0.4578 g of nickel(II) nitrate is to be dissolved in 25.0 mL of 0.100 M Ni(NO_3)_2 solution.

5 0
3 years ago
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