All categories

3 years ago

What is the tiny structure inside a cell

Chemistry

1 answer:

neonofarm [45]3 years ago

7 0

Nucleus............ithink

You might be interested in

You know that 8.9 moles of solute particles are dissolved in that liquid solution. If the molarity of the solution is 25 M, how

pychu [463]

Answer:

V = 0.356 L

Explanation:

In this case, we need to use the following expression:

M = n/V (1)

Where:

M: molarity of solution (mol/L or M)

n: moles of solute (moles)

V: Volume of solution (Liters)

From these expression, we can solve for V:

V = n/M (2)

Now, replacing the given data we can solve V:

V = 8.9 / 25

V = 0.356 L

5 0

3 years ago

Which equation illustrates conservation of mass?

saul85 [17]

Answer: d

explanation: in both reactants and products there are 2 hydrogen and 2 chlorine atoms

6 0

3 years ago

Actual conjugate acid of acetamide

viva [34]

CH3-C-NH2

hope this helps

7 0

4 years ago

A deficiency in thiamine (TPP) will directly decrease the activity of which of the following enzymes? a. Pyruvate carboxylase b.

Blababa [14]

Answer:

d. Transketolase

Explanation:

Transketolase utilize thiamine diphosphate (ThDP) as cofactor has reduced activity during the thiamine deficiency and results in the tissue damage. The levels of steady-state mRNA of transketolase in human lymphoblasts, fibroblasts and neuroblastoma cells are found to be lower in the thiamine-deficient cultures.

Thus, deficiency in TPP directly decrease the activity of enzyme, transketolase.

3 0

3 years ago

what is the boiling point of the solution resulted from the dissolving of 32.5g of NaCl in 250.0g of water?

suter [353]

Answer:

The boiling point of this solution is 102.28 °C

Explanation:

Step 1: Data given

Mass of Nacl = 32.5 grams

Molar mass of NaCl = 58.45 g/mol

Mass of Water = 250 grams

Boiling point of water = 100°C

Step 2: Calculate number of moles

Number of moles = mass of NaCl / Molar mass of NaCl

Number of moles = 32.5 grams /58.45 g/mol = 0.556 moles

Step 3: Calculate molality

Molality = Number of moles / mass of water

Molality = 0.556 moles / 0.250 kg of water

Molality = 2.224 molal

NaCl releases twice as many moles of ions, the total molality of this solution is also twice: 4.448 molal

Step 4: Calculate boiling point

dT =( 0.512 C / molal)*4.448 molal)

dT = 2.28

The boiling point of this solution is 100 °C + 2.28 °C = 102.28 °C

8 0

3 years ago