All categories

3 years ago

C,H. + 020 H2O + CO2 How many grams of O, are needed to combust 55.0 grams of CHỞ?

Chemistry

1 answer:

Studentka2010 [4]3 years ago

4 0

Well what do youmean?

You might be interested in

Which element is a liquid at STP?<br> (1) bromine (3) francium<br> (2) cesium (4) iodine

ollegr [7]

Among the choices, bromine exists as liquid under standard temperature and pressure conditions. Unlike other diatomic molecules which exist as gases, due to its heavy molecular weight, it exists as solid. Francium and cesium are solids while iodine is gas.Answer is 1.

7 0

3 years ago

Read 2 more answers

1 liter is equal to milliliters

ira [324]

Answer:

1 litre is equal to 1000 millilitres

7 0

2 years ago

HELP. I DONT KNOW WHAT TO DO. Barium sulfate, BaSO4, is made by the following reaction.

Ghella [55]

Answer:

$\boxed{\text{66.95 g BaSO$_{4}$}}$

Explanation:

We know we will need an equation with masses and molar masses, so let’s gather all the information in one place.

M_r: 261.34 233.39

Ba(NO₃)₂ + Na₂SO₄ ⟶ BaSO₄ + 2NaNO₃

m/g: 75.00

1. Moles of Ba(NO₃)₂

$\text{Moles of Ba(NO$_{3})_{2}$} = \text{75.00 g} \times \dfrac{\text{1 mol}}{\text{261.34 g}} = \text{0.286 98 mol}$

2. Moles of BaSO₄

The molar ratio is (1 mol BaSO₄/1 mol Ba(NO₃)₂

$\text{Moles of BaSO$_{4}$}= \text{0.286 98 mol Ba(NO$_{3})_{2}$ } \times \dfrac{\text{1 mol BaSO$_{4}$}}{\text{1 mol Ba(NO$_{3})_{2}$}} = \text{0.286 98 mol BaSO$_{4}$}$

3. Mass of BaSO₄

$\text{Mass of BaSO$_{4}$} = \text{0.286 98 mol BaSO$_{4}$} \times \dfrac{\text{233.39 g BaSO$_{4}$}}{\text{1 mol BaSO$_{4}$}} = \textbf{66.98 g BaSO$_{4}$}\\\\\text{The theoretical yield of barium sulfate is } \boxed{\textbf{66.98 g BaSO$_{4}$}}$

8 0

3 years ago

How much in mg/l is 0,327 meq/l chloride? I highly appreciate and love to know how you can calculate that.

evablogger [386]

0.00923728813559322 is the answer (:

6 0

3 years ago

If lung problems like emphysema occur, the blood ph of the patient is expected to ________.

skelet666 [1.2K]

Decrease . because the natural ph of blood is 7.35 the neutral ph , diseases such as emphysema disrupts the ph causing it to become acidic .

3 0

2 years ago