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nevsk [136]
3 years ago
6

If you were to plot y versus m using the equation y = (g/k) m + yo , please explain how would you calculate the value for k? whi

ch method you would use?
Chemistry
1 answer:
lara31 [8.8K]3 years ago
5 0

The given equation corresponds to that of a Linear Regression i.e. the data is fit to a straight line where the equation is-

y = (g/k) m + y0

This is of the form:

y = a x + b

where a = slope and b = intercept

In this case:

Intercept = y0

Slope = g/k

thus, k = g/slope

The value of slope can be deduced from the fit and along with the knowledge of the value of g, k can be calulated.

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MnO2+ 4HCL--->MnCl2+Cl2+2H2O:
Rainbow [258]
<span>Which reagent will be used up first? Thee answer is HCl.
We need to convert the amounts of the reactants into moles to see the limiting reactant.

48.2 g HCl ( 1 mol / 36.46 g) = 1.32 mol HCl

Since the ration is 1:4 then the limiting reactant is HCl. To react all of the MnO2 we need 3.44 mol HCl.

</span><span>How many grams of Cl2 will be produced? 
</span>We use the amount of limiting reactant since it will be used up first.

1.32 mol HCl (1 mol Cl2 / 4 mol HCl) ( 70.9 g Cl2 / 1 mol Cl2) =23.4 g CL2
3 0
4 years ago
How will you separate a solution of benzene and chloroform?
Troyanec [42]

Answer:

\huge\boxed{\sf Distillation}

Explanation:

  • State of benzene at RTP = liquid
  • State of chloroform at RTP = liquid
  • Boiling point of benzene = 80.1 °C
  • Boiling point of chloroform = 61.2 °C

Since, both of the chemicals are liquids, we can separate it by the process of distillation.

<u>Distillation:</u>

  • is the process in which we separate two liquids on the basis of their difference in boiling points.

<u>How it works:</u>

Since chloroform has less boiling point, it will evaporate and collected first and benzene will follow it after sometime.

- Apparatus of distillation is in the attached file.

\rule[225]{225}{2}

7 0
2 years ago
A neutral atom has 1 valence electron and its atomic mass is 39. How many
uranmaximum [27]

Answer: I think probaly wrong so probaly dont

listen to me

Explanation:

5 0
3 years ago
Identify the missing daughter nucleus in the β– emission decay of 106ru below.
kotykmax [81]
Answer is: <span>the missing daughter nucleus is rhodium (Rh).</span>

Nuclear reaction: ¹⁰⁶Ru → ¹⁰⁶Rh + e⁻(electron) + ve(electron antineutrino).

Beta decay is radioactive decay in which a beta ray and a neutrino are emitted from an atomic nucleus.There are two types of beta decay: beta minus and beta plus.

<span>In beta minus decay, neutron is converted to a proton and an electron and an electron antineutrino.
In beta plus decay, a proton is converted to a neutron and positron and an electron neutrino, so mass number does not change.</span>
6 0
3 years ago
What is the ph category of each of the following i need help plz
shepuryov [24]

1. base

2. neutral

3. acid

4. base

If this is what you meant, hope it helps

4 0
3 years ago
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