What volume of 5 M NaOH is needed to create a 100 mL solution of 1 M NaOH?

The molar concentration of sucrose in a can of soda is 0.375 M. How much sucrose would be found in a 2 liter bottle of soda of t

antoniya [11.8K]

Answer:

C) 0.75 mol.

Explanation:

Molarity is defined as the no. of moles of solute dissolved in 1.0 L of the solution.

So, The molar concentration of sucrose in a can of soda is 0.375 M means that: every 1.0 L of sucrose contains 0.375 mol of sucrose.

∴ 2 liter bottle of soda of the same concentration contains (2 * 0.375 mol = 0.75 mol) of sucrose.

<em>Thus, the right choice is: C) 0.75 mol.</em>

5 0

3 years ago

In a test of an automobile engine 1.00 L of octane (702 g) is burned, but only 1.84 kg of carbon dioxide is produced. What is th

Reptile [31]

Answer:

The % yield of CO2 is 85.05 %

Explanation:

Step 1: Data given

Mass of octane = 702 grams

Molar mass octane = 114.23 g/mol

Mass CO2 =1.84 kg = 1840 grams

Molar mass of CO2

Step 2: The balanced equation

2C8H18 + 25O2 → 16CO2 + 18H2O

Step 3: Calculate moles of octane

Moles octane = mass octane / molar mass octane

Moles octane = 702.0 grams / 114.23 g/mol

Moles octane = 6.145 moles

Step 4: Calculate moles of CO2

For 2 moles octane we need 25 moles O2 to produce 16 moles CO2 and 18 moles H2O

For 6.145 moles octane we'll have 8*6.145 moles =49.16 moles

Step 5: Calculate mass of CO2

Mass CO2 = moles CO2 * molar mass CO2

Mass CO2 = 49.16 moles * 44.01 g/mol

Mass CO2 = 2163.5 grams

Step 6: Calculate % yield of carbon dioxide

% yield = (actual yield / theoretical yield)*100%

% yield = (1840/2163.5)*100%

% yield = 85.05 %

The % yield of CO2 is 85.05 %

4 0

3 years ago

HELP ME WITH MY WORK BEFORE 4:00 PLZZZZZZZZZZZZZZZZZ PEOPLEZ

Alex787 [66]

Answer:

there are 2 atoms

B) 2

Explanation:

hydrogen and one atom of oxygen bonded together.

8 0

3 years ago

A glucose solution has a density of 1.02g/mL. what is the specific gravity?

Bond [772]

Answer:- Specific gravity of glucose solution is 1.02.

Solution:- Specific gravity is the ratio of the compound density with water density, means how denser the compound solution is as compared to water.

specific gravity = $\frac{glucose density}{water density}$

density of glucose is given as 1.02 g per mL and water density is 1.00 g per mL.

Let's plug in the values in the formula:

specific gravity = $\frac{1.02}{1.00}$ = 1.02

So, the specific gravity of glucose is 1.02. It indicates that glucose is 1.02 times more denser than water.

4 0

3 years ago

The mass of an object is 13.76 g. the volume of the object is 2.83 ml. what is the density of the object to the correct number o

Firlakuza [10]

Answer:

D ≈ 4.86 g/mL

Explanation:

Density = Mass over Volume

D = m/V

Step 1: Define variables

m = 13.76 g

V = 2.83 mL

D = unknown

Step 2: Substitute and Evaluate for Density

D = 13.76 g/2.83 mL

D = 4.8621908127208480565371024734982 g/mL

Step 3: Simplify

We are given 3 sig figs.

4.8621908127208480565371024734982 g/mL ≈ 4.86 g/mL

7 0

3 years ago