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lapo4ka [179]
3 years ago
11

True or false adding a solute to a solvent will raise the freezing point of the solvent.

Chemistry
1 answer:
sergejj [24]3 years ago
8 0
It would be false adding a solute to a solvent 
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How many ml of 0.5M of HNO3 would be needed to react with 85ml of 0.75M of KOH
olganol [36]

Answer: 127.5ml

Explanation:

To calculate the volume of acid, we use the equation given by neutralization reaction:

n_1M_1V_1=n_2M_2V_2

where,

n_1,M_1\text{ and }V_1 are the n-factor, molarity and volume of acid which is HNO_3

n_2,M_2\text{ and }V_2 are the n-factor, molarity and volume of base which is KOH.

We are given:

n_1=1\\M_1=0.5M\\V_1=?mL\\n_2=1\\M_2=0.75M\\V_2=85mL

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1\times 0.5\times V_1=1\times 0.75\times 85\\\\V_1=127.5mL

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3 years ago
Define the terms octet rule.​
luda_lava [24]

Answer:

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A 1.0 L container holds a sample of hydrogen gas at 300 K and 101.5 k Pa. If the pressure increases to 508 k Pa and the volume r
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<u>Answer:</u> The temperature will be 1501.47 K.

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This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.

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P\propto T

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We are given:

P_1=101.5kPa\\T_1=300K\\P_2=508kPa\\T_2=?K

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\frac{101.5kPa}{300K}=\frac{508kPa}{T_2}\\\\T_2=1501.47K

Hence, the temperature will be 1501.47 K

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