All categories

3 years ago

A compound of Calcium is used for disinfecting drinking water. Identify the compound.

Chemistry

1 answer:

lukranit [14]3 years ago

5 0

Answer:

calcium hypocholorite

You might be interested in

What does the red represent on the model? *

kaheart [24]

The red is an oxygen molecule. 1 oxygen and 2 hydrogen =h2o or water!

6 0

3 years ago

Hydrochloric acid (HCl) and sodium hydroxide (NaOH) react to form water and sodium chloride (NaCl). If you have 2.87 g of HCl, 3

wlad13 [49]

Answer:

2.86g

Explanation:

Mass of HCl = 2.87g

Mass of water = 3.75g

Mass of NaCl = 1.98g

Unknown:

Mass of NaOH reacted = ?

Solution:

The reaction expression is given as:

HCl + NaOH → NaCl + H₂O

According to the law of conservation of mass, the mass of reactants and products must be the same.

Mass of HCl + Mass of NaOH = Mass of NaCl + Mass of H₂O

2.87g + Mass of NaOH = 1.98g + 3.75g

Mass of NaOH = 1.98g + 3.75g - 2.87g = 2.86g

7 0

3 years ago

A sealed container holding 0.0255 L of an ideal gas at 0.979 atm and 67 ∘ C is placed into a refrigerator and cooled to 41 ∘ C w

Aliun [14]

Answer:

$0.904 atm$

Explanation:

Using Gay Lusaac's law where there is no change in Volume. The pressure changes directly proportional to absolute T°

P₁/T₁ = P₂/T₂

P₁T₂/T₁

P₂ = $\frac{0.979 atm * 314k }{340k}$

P₂ = $0.904 atm$

5 0

3 years ago

A 34.57 mL sample of an unknown phosphoric acid solution is titrated with a 0.127 M sodium hydroxide solution. The equivalence p

Bas_tet [7]

<u>Answer:</u> The concentration of unknown phosphoric acid solution is 0.034 M

<u>Explanation:</u>

To calculate the concentration of acid, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $H_3PO_4$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH.

We are given:

$n_1=3\\M_1=?M\\V_1=34.57mL\\n_2=1\\M_2=0.127M\\V_2=28.2mL$

Putting values in above equation, we get:

$3\times M_1\times 34.57=1\times 0.127\times 28.2\\\\M_1=\frac{1\times 0.127\times 28.2}{3\times 34.57}=0.034M$

Hence, the concentration of unknown phosphoric acid solution is 0.034 M

7 0

3 years ago

What is the chemical formula for iron (ii) oxide?

Bingel [31]

Answer: FeO

Explanation:

4 0

3 years ago

Read 2 more answers