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Brut [27]
3 years ago
8

What is. 321 divided by 32 show work please!?

Chemistry
1 answer:
Kobotan [32]3 years ago
6 0
Your answer would be 10 with the remainder of 1

(look at work for the work)

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4 g of X2O3, an oxide of efement X, contains 2.8 g of X. How many moles of X<br> are there?
ziro4ka [17]

Moles of X are 0.925 moles.

A mole is a totally vital unit of dimension that chemists use.The mole, symbol mol, is the unit of amount of substance inside the worldwide device of gadgets. the amount quantity of the substance is a measure of how many simple entities of a given substance are in an item or sample. The mole is described as containing exactly 6.02214076×10²³ primary entities

mass  of X2O3 = 4 g

so moles = mass/molar mass

molar mass  of X2O3 =  2*X + 48 -

Given, that the mass of X = 2.8g

        mass of O = 4 - 2.8 = 1.2g

A mole of O = 1.2g/16 = 0.075 mole

∴ mole of X = 1 - 0.075 = 0.925 moles.

Learn more about moles here:-brainly.com/question/15356425

#SPJ9

4 0
2 years ago
What is the [OH-] of solution with pH of 3.4?
arsen [322]

Answer:

(A) 4×0.0001M

Explanation:

[OH-] = 10^-3.4 which is equivalent to 4×0.0001M

5 0
4 years ago
Read 2 more answers
What's the answer of this chemistry question
timama [110]
.2510 g times 1 mol AlCl3 / 133.34 g times 3 mol Cl / 1 mol AlCl3. You should get: .005647 moles of Chloride ions.
8 0
3 years ago
In the chemical reaction between aqueous magnesium chloride and sodium metal, what chemical amount (mol) of magnesium metal can
PolarNik [594]

Answer:

6.3moles

Explanation:

The balanced equation of the reaction described above between aqueous magnesium chloride and sodium metal is as follows:

MgCl2(aq) + 2Na(s) → 2NaCl(aq) + Mg(s)

From the above equation, 2 moles of sodium metal (Na) produces 1 mole of Magnesium metal (Mg)

Hence, 12.6 mol of Na will produce (12.6/2) mol of Mg.

12.6/2 = 6.3moles of Mg metal.

8 0
3 years ago
What is the mass in grams of 5.40 moles of lithium.
Maslowich
You would use the formula:

n = \frac{m}{M}

Where m is the mass, and M is molar mass (the periodic table would be used for this)

In this case, we need to rearrange the formula to find m

m = nM
    = 5.40 x 6.941
    = 37.5g

Hope this helped! Ask me if there's any part of the working you don't understand :)


3 0
4 years ago
Read 2 more answers
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