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3 years ago

Make a Punnett Square for two smooth seed hybrid pea plants (Ss).

Chemistry

1 answer:

Andreyy893 years ago

4 0

Answer:

see picture.

Both are hybrid (Ss) and produce 25% SS, 25% ss, and 50% Ss

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Hydrogen chloride gas and oxygen gas react to form water and chlorine gas. A reaction mixture initially contains 53.2 g of hydro

Sergio [31]

Answer: The mass of the excess reactant (oxygen gas) is 3.136 grams

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)

For HCl:

Given mass of HCl = 53.2 g

Molar mass of HCl = 36.5 g/mol

Putting values in equation 1, we get:

$\text{Moles of HCl}=\frac{53.2g}{36.5g/mol}=1.46mol$

For oxygen gas:

Given mass of oxygen gas = 26.5 g

Molar mass of oxygen gas = 32 g/mol

Putting values in equation 1, we get:

$\text{Moles of oxygen gas}=\frac{26.5g}{32g/mol}=0.828mol$

The chemical equation for the reaction of HCl and oxygen gas follows:

$2HCl+O_2\rightarrow H_2O+Cl_2$

By Stoichiometry of the reaction:

2 moles of HCl reacts with 1 mole of oxygen gas

So, 1.46 moles of HCl will react with = $\frac{1}{2}\times 1.46=0.73mol$ of oxygen gas

As, given amount of oxygen gas is more than the required amount. So, it is considered as an excess reagent.

Thus, HCl is considered as a limiting reagent because it limits the formation of product.

Excess moles of oxygen gas = (0.828 - 0.73) = 0.098 moles

Now, calculating the mass of oxygen gas from equation 1, we get:

Molar mass of oxygen gas = 32 g/mol

Excess moles of oxygen gas = 0.098 moles

Putting values in equation 1, we get:

$0.098mol=\frac{\text{Mass of oxygen gas}}{32g/mol}\\\\\text{Mass of oxygen gas}=(0.098mol\times 32g/mol)=3.136g$

Hence, the mass of the excess reactant (oxygen gas) is 3.136 grams

4 0

3 years ago

Volume occupied 3.52x10^32 moluchles of Mathane (CH4) 1) At STP

Naddika [18.5K]

Answer:

volume = 13097674418.528dm³

Explanation:

n = (3.52)*10^32/(6.02)*10^23)

n = (584717607.97)

n = volume /molar volume

molar volume at stp = 22.4dm³

volume= 584717607.97 x 22.4

volume = 13097674418.528dm³

6 0

3 years ago

A chemist is likely to do which of the following? . . 1)write a formula for a paint coating . 2)explore land areas for digging o

Serggg [28]

"Write a formula for a paint coating" is the one among the following choices given in the question that a chemist is likely to do. The correct option among all the options that are given in the question is the first option or option "1". I hope that this answer has actually come to your help.

8 0

3 years ago

Read 2 more answers

GuDViN [60]

Answer:

A phosphorus atom forms a P3- ion by gaining three electrons.

here

4 0

3 years ago

What type of compound is created when potassium and chlorine combine?

poizon [28]

Answer : The type of compound created is Ionic compound and the chemical formula is KCl.

Explanation :

Potassium has 1 electron in its valence shell and chlorine has 7 electrons in its valence shell.

The potassium loses 1 valence electron & make a positive charged ion and chlorine picks it up & make a negative charged ion and then they attract to each other.

Potassium and chlorine atom combine to form potassium chloride by the ionic bonding.

An ionic compound is made of a metal and non-metal element. And in this case, potassium is a metal element and chlorine is a non-metal element.

The ionic compound formation is,

$K+Cl\rightarrow KCl$

The Chemical formula is KCl.

3 0

3 years ago