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levacccp [35]
4 years ago
12

Calculate the molar mass of (NH4)3AsO4.

Chemistry
1 answer:
Marysya12 [62]4 years ago
3 0

Answer:

193.07 g / mol

Explanation:

Molar mass of (NH₄)₃ = 3 * (14.01 + 4 * 1.01) = 54.15

As = 74.92 and O₄ = 4 * 16 = 64

Answer is 54.15 + 74.92 + 64 = 193.07

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Balance this equation-<br> Na3PO4 + KOH -&gt; NaOH + K3PO4
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Na3PO4 + 3 KOH = 3 NaOH + K3PO4
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What mean mikroorganism
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7 0
3 years ago
Calculate the volume of each of the following gases at STP
kherson [118]
For Ar :

1 mol ------------ 22.4 L ( at STP )
7.6 mol ---------- x L 

x = 7.6 * 22.4

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hope this helps !.



7 0
3 years ago
The backbone in a nucleic acids strand is called:
Nina [5.8K]

Answer: Option (c) is the correct answer.

Explanation:

Backbone in a nucleic acids strand is made up of sugar molecules attached with phosphodiester bond.

This sugar-phosphate linkage helps in joining of nucleotides in a DNA sequence. Due to this backbone structural framework of nucleotides is formed. In DNA, the sugar is deoxyribose.  

Thus, we can conclude that the backbone in a nucleic acids strand is called sugar backbone.

4 0
3 years ago
A 25 gram(m) metal ball is heated to 200C(delta T) with 2330 Joules(q) of energy. What is the specific heat of the metal?
Dominik [7]

Answer:

The specific heat of the metal is 0.466 \frac{J}{g*C}

Explanation:

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

The equation that allows calculating heat exchanges is:

Q = c * m * ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

In this case:

  • Q= 2330 J
  • c= ?
  • m= 25 g
  • ΔT= 200 °C

Replacing:

2330 J= c*25 g* 200 °C

Solving:

c=\frac{2330 J}{25 g* 200 C}

c=0.466 \frac{J}{g*C}

<u><em>The specific heat of the metal is 0.466 </em></u>\frac{J}{g*C}<u><em></em></u>

6 0
3 years ago
Read 2 more answers
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