3 years ago

It’s the image bellow please help

Chemistry

1 answer:

disa [49]3 years ago

5 0

I think it is starting substances

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50.0 mL of a solution of HCl is combined with 100.0 mL of 1.05M NaOH in a calorimeter. The reaction mixture is initially at 22.4

VikaD [51]

Answer:

2.1 M is the molarity of the HCl solution.

Explanation:

$HCl+NaOH\rightarrow H_2O+NaCl$

Molarity of HCl solution = $M_1=?$

Volume of HCl solution = $V_1=50.0mL$

Ionizable hydrogen ions in HCl = $n_1=1$

Molarity of NaOH solution = $M_2=1.05 M$

Volume of NaOH solution = $V_2=100.0 mL$

Ionizable hydroxide ions in NaOH = $n_2=1$

$n_1M_1V_1=n_2M_2V_2$ (neutralization )

$M_1=\frac{M_2V_2}{V_1}=\frac{1.05M\times 100.0 mL}{50.0 mL}$

$M_1=2.1 M$

2.1 M is the molarity of the HCl solution.

3 0

3 years ago

i need to refill my helium tank which holds 2.5 liters, what in grams do I need to order the supplier?

Viktor [21]

answer: 2,500 grams

explanation:

1 liter = 1000 grams

simply multiply $2.5 liters*\frac{1000 grams}{1 liter} = 2,500 grams$

6 0

3 years ago

PLEASE HELP<br> I will mark brianliest

Stells [14]

Answer:

I feel A I am not you sure though. could also be D

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I'M GIVING BRAINIEST AND I'LL RATE YOU THAANKS!!!!

SIZIF [17.4K]

Answer:

0.5 mole of a SO2 contains 3.01 into 10 ^23 molecules of So2.

Explanation:

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kherson [118]

Explanation:

i believe you meant particles*

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